Official NBDE Part 1 Study Q & A Thread

[tinman831]

Please post all study questions/answers for the NBDE Part 1 in this thread. Good luck!

As a side note, this is not the place for sales ads. Discussion of remembered questions appearing on the exam is also not permitted.

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[Holly J]

Hatico good work!! you almost got it right except this one:

All of the following can leaad to kidney stone except one

A) Hypercalcemia
B) diabates insipidus-very common.
C) UTI-answer. Kidney stones leads to UTI but UTI doesnt lead to kidney stone formation.
D) .......

IN Addision disease, the hyperpigmentation is caused by cells found in which layer of the skin
A) S. granular
B) S. Cornem
C) S. germinale?basale-answer
D) S. lucidum
E) S. Spinosum

 

[ionomer]

Hatico good work!! you almost got it right except this one:

All of the following can leaad to kidney stone except one

A) Hypercalcemia
B) diabates insipidus-very common.
C) UTI-answer. Kidney stones leads to UTI but UTI doesnt lead to kidney stone formation.
D) .......

IN Addision disease, the hyperpigmentation is caused by cells found in which layer of the skin
A) S. granular
B) S. Cornem
C) S. germinale?basale-answer
D) S. lucidum
E) S. Spinosum

Holy J so please explain how diabates insipidus will/can cause renal stones.
Thanx

 

[ionomer]

Hatico good work!! you almost got it right except this one:

All of the following can leaad to kidney stone except one

A) Hypercalcemia
B) diabates insipidus-very common.
C) UTI-answer. Kidney stones leads to UTI but UTI doesnt lead to kidney stone formation.
D) .......

IN Addision disease, the hyperpigmentation is caused by cells found in which layer of the skin
A) S. granular
B) S. Cornem
C) S. germinale?basale-answer
D) S. lucidum
E) S. Spinosum

I figured it out already.

Insipidus will lead to dehydration and dehydration is one of the major risk factor for kidney stone.

 

[ionomer]

we find these cells in the following skin layers

Keratinocytes -- S. granulosum

langerhan cells --- S. spinosum

malanocytes --- S. Basale/gernimatum

 

[DancingKoala]

In the life cycle of an ameloblast, there are cells that contain Tomes' processes. These cells are in which of the following stages?

1. Secretory ans
2. Morphogenic
3. Organizing
4. Maturative
5. Protective

Does someone know stages of ameloblast cycle? Is rod a mature ameloblast? There is also Tomes' processes - spindels, correct?

Based on what I know,
Preameloblast --> ameloblast if odontoblastic process pokes it ' - ' ;;
Ameloblast secretes enamel at DEJ from its Tome's process.
I don't know how Tome's process looks like but I just think of it a small hole on ameloblast that enamel comes out

 

[DancingKoala]

we find these cells in the following skin layers

Keratinocytes -- S. granulosum

langerhan cells --- S. spinosum

malanocytes --- S. Basale/gernimatum

I think keratinocytes are also in S. basale.
Did you already start studying for the retake even before finding out the result? (if you ask me, yes I just started already )

 

[ionomer]

which of these is only specific to bone

A) Type 1 collagen
B) , C) ,
D) osteocalcin ans

Hemoptysis is seen in the following EXCEPT

A) Emphysema ans
B) TB
C) Bronchogenic CA
D) Histoplasmosis

Which of the following is a polysaccharide capsule

A) Bacillus anthrasis
B) Staph aureus
c) Strept pneumonea ans
d) Clostridium

Long term use of the anti bact agent clindamycin causes which

A) Ulcerative colitis
B) crons dx
C)perforated ilieus
D)Infective endocarditis
E)Pseudomembranous colitis ans

Which of the following causes non caseating granulomatous inflamation

A) Crohns dx answer
B)ulcerative colitis
C)Typhoid ileitis
D)Appendicitis
E)Acute on chronic gastritis

which immunoglobulin is normally found in oral infection

A)IgG
B)IgM
C)IgA
D)IgE
E)IgD

IgE is expressses in which of the following infection

A)Viral
B) parasite answer
C)Fungal
D)Bacteria

Fumarate is an intermediate in the urea cycle and ......

A) Tricarboxylic answer
B)Glycolysis
C)Pentose phosphate p way
D)...........

which of the following suppresses the immune sys

A) MHC 1
) Cytotoxic T cells
C) Suppressor T Cells answer
D)Immunoglobulins

Commonest site of basal cell CA is

A) Nose
B) lower lip
C) upper lip
D) upper face

which of these is not associated with taste buds

A) Filiform answer
B)Foliate
C) circumvalate
D)Fungiform

the 2nd phase of deglutition is comtrolled by

A) Medulla
B)Pons answer
C) meduula
D)Cerebelum

which of the following is monosynaptic

A) Gag reflex
B)...
C)...
D)...

At the top of a mountain the atmospheric presure is 250kpa what is the partial pressure of oxygen

A)0.01
B) 0.5
C)5
D) 50
E) 500
someone please answer dis question
IN Addision disease, the hyperpigmentation is caused by cells found in which layer of the skin
A) S. granular
B) S. Cornem
C) S. germinale?basale amswer
D) S. lucidum
E) S. Spinosum

Aldosterone actsin the partial regulation of which of the following

A) Sodium
B) potassium
C)...
D)...

Section of the infundibular stalk of the pituitary will lead to decrease in which of the following

A) Growth H
B) Thyroid H
C) Vasopressin answer
D) Prolactiin

Klinefelter is xterised by

A) 47 xxy
B) 47 xyy
C) 45 xxy answer
D) 45 xyy

All the following are xteristed by latency except

A) Rhinovirus
B) pappilomma Virus
C) Cytomegalovirus
D) Herpes simplex
E) .........

Antifungal agents are specific for fungal and not bacteria because of which of the following

A) Bacteria cell wall is thicker than fungal
A) Bateria is prokaryote while fungal is Eukaryote
C) Cell wall of fungus contains mycolic acid which is where the antifungal agent binds/ is specific to/for answer
D) Bacteria contain lipopolysaccharides while fungus contain proteoglycan

All of the following can leaad to kidney stone except one

A) Hypercalcemia
B) diabates insipidus
C) UTI answer
D) .......

As the questions keep coming we will be discussing. All the best Guys If you have any question(S) please let us discuss

Thanks All

Any body disagree with answers please let discuss them

 

[DancingKoala]

which of these is only specific to bone

A) Type 1 collagen
B) , C) ,
D) osteocalcin ans
I would say A, no?

Hemoptysis is seen in the following EXCEPT

A) Emphysema ans
B) TB
C) Bronchogenic CA
D) Histoplasmosis
IDK
Which of the following is a polysaccharide capsule

A) Bacillus anthrasis
B) Staph aureus
c) Strept pneumonea ans
d) Clostridium
Yes, I think S.Pneumonea and C. Neoforman got polysaccharide capsule.
And both of them cause Meningitis.
Long term use of the anti bact agent clindamycin causes which

A) Ulcerative colitis
B) crons dx
C)perforated ilieus
D)Infective endocarditis
E)Pseudomembranous colitis ans
Yes, Overusage of Clindaymycin causes pseudomembranous colitis. I believe this is caused by C. Difficile.
Which of the following causes non caseating granulomatous inflamation

A) Crohns dx answer
B)ulcerative colitis
C)Typhoid ileitis
D)Appendicitis
E)Acute on chronic gastritis
Yes, Crohn's disease = non caseating granulomatous inflammation.
I think caseating is M.Tuberculosis... I am not sure
which immunoglobulin is normally found in oral infection

A)IgG
B)IgM
C)IgA
D)IgE
E)IgD
I am debating between IgG and IgA.
IgG is increased during periodontal disease.
Polymeric IgA is most abundant in saliva, tears...etc.
Also, sIgA is preventing bacterias from colonizing.
But, I would go with IgG.
Just because saliva got IgA, i don't know if that's enough evidence to say it's found in oral infection. Also, I think sIgA is not IgA
What I do know is that periodontal disease is oral infection, right?

IgE is expressses in which of the following infection

A)Viral
B) parasite answer
C)Fungal
D)Bacteria
yes, IgE is expressed in parasite and ....what was the other one...oh allergic reaction
Fumarate is an intermediate in the urea cycle and ......

A) Tricarboxylic answer
B)Glycolysis
C)Pentose phosphate p way
D)...........
Fumarate is in both urea cycle and TCA cycle.

which of the following suppresses the immune sys

A) MHC 1
) Cytotoxic T cells
C) Suppressor T Cells answer
D)Immunoglobulins
I think so...

Commonest site of basal cell CA is

A) Nose
B) lower lip
C) upper lip
D) upper face
Basal cell carcinoma is upper face whereas squamous cell carcinoma is lower face.
which of these is not associated with taste buds

A) Filiform answer
B)Foliate
C) circumvalate
D)Fungiform
Filiform is the only region without taste buds.
the 2nd phase of deglutition is comtrolled by

A) Medulla
B)Pons answer
C) meduula
D)Cerebelum
IDK...
which of the following is monosynaptic

A) Gag reflex
B)...
C)...
D)...
well...since B,C,D are not available A is the answer.
At the top of a mountain the atmospheric presure is 250kpa what is the partial pressure of oxygen

A)0.01
B) 0.5
C)5
D) 50
E) 500
someone please answer dis question
To find pO2, you do 0.21 times 250 which is around 50 so C is the right answer.


IN Addision disease, the hyperpigmentation is caused by cells found in which layer of the skin
A) S. granular
B) S. Cornem
C) S. germinale?basale amswer
D) S. lucidum
E) S. Spinosum
Pigmentation is related to melanocytes which is located in S. Basale.

Aldosterone actsin the partial regulation of which of the following

A) Sodium
B) potassium
C)...
D)...
Aldosterone stimulates absorption of sodium and water and secrete potassium. If I really have to pick one between A, and B, I would go with A.
Section of the infundibular stalk of the pituitary will lead to decrease in which of the following

A) Growth H
B) Thyroid H
C) Vasopressin answer
D) Prolactiin
A,B,D are from anterior pituitary gland whereas C is from posterior pituitary gland so C must be the right answer.
Klinefelter is xterised by

A) 47 xxy
B) 47 xyy
C) 45 xxy answer
D) 45 xyy
Klinefelter is 47XXY not 45XXY so A is the right answer.
All the following are xteristed by latency except

A) Rhinovirus
B) pappilomma Virus
C) Cytomegalovirus
D) Herpes simplex
E) .........
C,D are hepes virus. There are 5 herpes virus; HSV type 1,2, HVZ, cytomegalovirus, and EBV. All of these have latency. So the only option is either A or B. I think A is the correct answer.
Antifungal agents are specific for fungal and not bacteria because of which of the following

A) Bacteria cell wall is thicker than fungal
A) Bateria is prokaryote while fungal is Eukaryote
C) Cell wall of fungus contains mycolic acid which is where the antifungal agent binds/ is specific to/for answer
D) Bacteria contain lipopolysaccharides while fungus contain proteoglycan
I don't know...All i know is that bacterial spore is stronger than fungal spore.
All of the following can leaad to kidney stone except one

A) Hypercalcemia
B) diabates insipidus
C) UTI answer
D) .......
Kidney stone is related to the calcium so A can't be the right answer.
It's either B or C but I don't know how B can lead to increased level of calcium or kidney stone.
As the questions keep coming we will be discussing. All the best Guys If you have any question(S) please let us discuss

 

[Hatico]

Any body disagree with answers please let discuss them

I have answered some, Holly correct some of them. I agree with correction.

Which of the following BEST characterizes the alveolar mucous membrane?

1. Has no melanocytes
2. Firmly bound to underlying bone
3. Well developed epithelial ridges
4. Separated from the gingiva by the free gingival groove
5. Appears red due to high vascularity and thinness of epithelium ans

Really? I thought sublingual is thinnest

Fracture of the hamulus affects the action of which of the following muscles?

1. Superior constrictor of the pharynx
2. Levator veli palatini
3. Tensor veli palatini ans
4. Salpingopharyngeus
5. Buccinator

Why only Tensor veli palatini? How about salpingopharyngeus and muscles of pterygo-mandibular raphe - Buccinator and Superior constrictor?

 

[DancingKoala]

I have answered some, Holly correct some of them. I agree with correction.

Which of the following BEST characterizes the alveolar mucous membrane?

1. Has no melanocytes
2. Firmly bound to underlying bone
3. Well developed epithelial ridges
4. Separated from the gingiva by the free gingival groove
5. Appears red due to high vascularity and thinness of epithelium ans

Really? I thought sublingual is thinnest
Based on what I know, 5 is the correct answer.
The reason it appears darker red (look at your own gum) than free gingiva and attached gingiva is because it's thinner and has more vascularity.

Fracture of the hamulus affects the action of which of the following muscles?

1. Superior constrictor of the pharynx
2. Levator veli palatini
3. Tensor veli palatini ans
4. Salpingopharyngeus
5. Buccinator

Why only Tensor veli palatini? How about salpingopharyngeus and muscles of pterygo-mandibular raphe - Buccinator and Superior constrictor?
Hamulus is at the medial pterygoid of the...errr....forgot its name, the butterfly shaped bone that has many holes Anyways, hamulus is where tensor veli palatini glides and fracture of this part will inhibit or affect tensor veli palatini action.

' - ' b

 

[Hatico]

You are right. It's tensor veli palatini. But pterygomandibular raphe and salpingopharyngeal muscle are also attached to hamulus

 

[DancingKoala]

nvm

 

[PooKan]

Hope it's correct

hey in first queston...y cant it be type 1 collagen...even tht s only specific to bone..

 

[DancingKoala]

hey in first queston...y cant it be type 1 collagen...even tht s only specific to bone..

I am thinking about the same thing.
Dental deck said
Type One collagen = bONE
But then when I went to google and typed type 1 collagen, it seems it exists in places other than bone too such as tendons.

 

[PooKan]

Amino group from carbamyl phosphate s directly donated by aspartate in transamination reactions....true/false?

 

[PooKan]

within physiological limits, activity of respiratory center is decreased directly by?
-increased pH
how?

 

[PooKan]

terminal web delimits the odontoblast from odontoblast process.this aggregation of microfilaments is found
-intracellularly inserting into junctional complex of cell
can anybody explain this to me? had hard time understanding this

 

[Holly J]

within physiological limits, activity of respiratory center is decreased directly by?
-increased pH
how?

Respiratory centre is activated when there is low O2 levels/high Co2 levels(low pH) in blood. Now when again O2 levels come back to normal,pH goes back up i.e., increase in pH-respiratory centre slows down since there is enough o2 already.

The next Q....terminal web thing...weird...I just left it! No torturing my brain!

 

[DancingKoala]

within physiological limits, activity of respiratory center is decreased directly by?
-increased pH
how?

I believe that another word for respiratory center is chemoreceptor.
There is central and peripheral chemoreceptors.
They detect increase in CO2 more than anything else (decreased O2, and pH).
If CO2 increase in our body, then it's bad~ so we need to hyperventilate.
If CO2 decrease in our body, then there is no need to ventilate to release it.
Increased pH means decreased H meaning that CO2 in our body decreased (cuz CO2 + H2O --> H2CO2 --> H + HCO3 so H is directly related to CO2)
Anyways, since CO2 is decreased, no need to ventilate = decreased respiratory activity.

 

[Holly J]

Respiratory centre is in medulla.
Chemoreceptor is carotid body at the bifurcation of carotid.

 

[DancingKoala]

Respiratory centre is in medulla.
Chemoreceptor is carotid body at the bifurcation of carotid.

isn't respiratory center same as central chemoreceptor?
I think central chemoreceptor is in medulla wheras peripheral chemoreceptor is at carotid body.

 

[liriano]

The only way central chemoreceptors can acknowledge any change is through the amount of excess H+ directly, a by product of the breakdown of Carbonic acid. It is NOT through CO2 directly, as is stated in some books.

I believe that another word for respiratory center is chemoreceptor.
There is central and peripheral chemoreceptors.
They detect increase in CO2 more than anything else (decreased O2, and pH).
If CO2 increase in our body, then it's bad~ so we need to hyperventilate.
If CO2 decrease in our body, then there is no need to ventilate to release it.
Increased pH means decreased H meaning that CO2 in our body decreased (cuz CO2 + H2O --> H2CO2 --> H + HCO3 so H is directly related to CO2)
Anyways, since CO2 is decreased, no need to ventilate = decreased respiratory activity.

 

[Hatico]

Assuming that P50 = 26 torrs, under conditions where pO2 = 30 torrs, the average number of O2 molecules bound per hemoglobin molecule is closest to

1. 0.5.
2. less than 1.
3. almost 2.
4. greater than 2.ans
5. greater than 3.

Can someone explain?

 

[Holly J]

Assuming that P50 = 26 torrs, under conditions where pO2 = 30 torrs, the average number of O2 molecules bound per hemoglobin molecule is closest to

1. 0.5.
2. less than 1.
3. almost 2.
4. greater than 2.ans
5. greater than 3.

Can someone explain?

P50 is something where half of the half oxygen molecules are bound to Hb-that would be 2. Now when the p02 is more than p50...more than 2 will bind.

 

[Hatico]

P50 is something where half of the half oxygen molecules are bound to Hb-that would be 2. Now when the p02 is more than p50...more than 2 will bind.

Is P50 someting like pressire of half-saturation (50 is 50%)? Full saturation is 4 molecules. Half-saturation is 2 molecules only. Correct?

 

[Holly J]

Is P50 someting like pressire of half-saturation (50 is 50%)? Full saturation is 4 molecules. Half-saturation is 2 molecules only. Correct?

Yes,its half saturation.
There might probably be some formula for this...I just did it logically. Hope thats right.

 

[Hatico]

Which of the following represents the pH of a solution that has a 10-3 M concentration of OH- ion?

1. 5
2. 7
3. 9 ans
4. Determinable only if the pka is known.
5. Determinable only if the base composition is known.

What does M mean?
I think correct answer is 11...

 

[DancingKoala]

Which of the following represents the pH of a solution that has a 10-3 M concentration of OH- ion?

1. 5
2. 7
3. 9 ans
4. Determinable only if the pka is known.
5. Determinable only if the base composition is known.

What does M mean?
I think correct answer is 11...

M means concentration(molarity).
And I am sure whoever wrote this made a typo, it must've been 10^-5.

 

[PooKan]

Amino group from carbamyl phosphate s directly donated by aspartate in transamination reactions....true/false?

 

[Hatico]

1)Triglyceride absorbed into the lymphatic system is transported to the liver as which of the following?

1. Very low density lipoprotein
2. Low density lipoprotein
3. Chylomicrons ans
4. Liposomes
5. Micelles

I know that tryglycerides are transported as chylomicrones. I'm confused with direction. I though chylomicrones, VLDL,LDL transport from liver to tissue (but not to liver as in question ), HDL - from tissue to liver. Please, correct me.
Sorry for stupid question - it's overstudying


2)Blocking the hypothalamic-hypophyseal venous portal system increases the secretion of which of the following?

1. Prolactin ans
2. Oxytocin
3. ACTH
4. TSH

Why?

3)Pieces of dog parotid gland and pancreas are transplanted under the skin of the donor animal. After re-establishment of circulation, ingestion of food will result in secretion from which of the following?

1. Parotid and pancreatic transplants
2. The fragment of the pancreas only ans
3. The fragment of the parotid only
4. Neither fragment

Why no parotid?

4) How many anomeric carbons in glucose and fructose? 1 - C1. Correct?

 

[Holly J]

1)Triglyceride absorbed into the lymphatic system is transported to the liver as which of the following?

1. Very low density lipoprotein
2. Low density lipoprotein
3. Chylomicrons ans
4. Liposomes
5. Micelles

I know that tryglycerides are transported as chylomicrones. I'm confused with direction. I though chylomicrones, VLDL,LDL transport from liver to tissue (but not to liver as in question ), HDL - from tissue to liver. Please, correct me.
Sorry for stupid question - it's overstudying
Its chylomicrons only

2)Blocking the hypothalamic-hypophyseal venous portal system increases the secretion of which of the following?

1. Prolactin ans(because there is no Prolactin-inhibitory hormone-Dopamine which is released into the HP portal.
2. Oxytocin
3. ACTH
4. TSH

Why?

3)Pieces of dog parotid gland and pancreas are transplanted under the skin of the donor animal. After re-establishment of circulation, ingestion of food will result in secretion from which of the following?

1. Parotid and pancreatic transplants
2. The fragment of the pancreas only ans
3. The fragment of the parotid only
4. Neither fragment

Why no parotid? When did parotid act on "ingestion of food"

4) How many anomeric carbons in glucose and fructose? 1 - C1. Correct?

 

[Hatico]

Got it.
2) Actually, Hypothalamus release 2 inhybitory hormons - prolactin and GH. In our case - prolactin only
3) No amylase released from parotid?

 

[Holly J]

Got it.
2) Actually, Hypothalamus release 2 inhybitory hormons - prolactin and GH. In our case - prolactin only
3) No amylase released from parotid?

Amylase yes...but its under neural control...unlike pancreatic secretions which are released on "ingestion of food".
p.s:I am hoping thats how it is,if there is some other explaination-I would be happy to hear

 

[Holly J]

Amino group from carbamyl phosphate s directly donated by aspartate in transamination reactions....true/false?

Amino group from Aspartate is donated to carbamyl phosphate.

 

[PooKan]

which of the following is NOT true about ammonia and alpha-amino group of amino acids?
-NH4 s formed from glutamine in kidney
-amino group in carbamyl phosphate s directly donated by aspartate n transamination reactions (ans)
-cellular levels of ammonia must be maintained at low conc because of its toxcity
-glutamate dehydrogenase can catalyse the formation of glutamate from ammonia and alpha-ketoglurate using NADPH as cofactor

according to me the last option has to be correct..as glutamate dehydro leads to formation of glutamate from alpha-keto BUT it 'releases' ammonia
plz correct me if iam wrong?

 

[PooKan]

asn to the last question s right...it has only 1 anomeric carbon

 

[PooKan]

Which of the following represents the pH of a solution that has a 10-3 M concentration of OH- ion?

1. 5
2. 7
3. 9 ans
4. Determinable only if the pka is known.
5. Determinable only if the base composition is known.

What does M mean?
I think correct answer is 11...

no 9 is right..
the formula:-
Kw = [H+] [OH-]
(at 25C Kw is 10(-14)
10(-14) = [H+] 10(-3)
[H+] = 10(-9)
ph =-log (H+)
hence pH= 9
hope i was clear...

 

[Hatico]

hope i was clear...

pOH = - log[OH-]
pOH = 3 ; pH = 14-pOH =11

 

[DancingKoala]

14- 3 = 11

 

[Holly J]

which of the following is NOT true about ammonia and alpha-amino group of amino acids?
-NH4 s formed from glutamine in kidney
-amino group in carbamyl phosphate s directly donated by aspartate n transamination reactions (ans)
-cellular levels of ammonia must be maintained at low conc because of its toxcity
-glutamate dehydrogenase can catalyse the formation of glutamate from ammonia and alpha-ketoglurate using NADPH as cofactor

according to me the last option has to be correct..as glutamate dehydro leads to formation of glutamate from alpha-keto BUT it 'releases' ammonia
plz correct me if iam wrong?

Ah the answer is right. Jeez we need to pay attention to little details!
-It says ->amino group in carbamyl phosphate s directly donated by aspartate n transamination reactions. False!
Explaination:"Aspartate donates its amino group, becoming the a-keto acid oxaloacetate. Alpha-Ketoglutarate accepts the amino group, becoming the amino acid glutamate"
For the last-yes ammonia is formed!

 

[PooKan]

Ah the answer is right. Jeez we need to pay attention to little details!
-It says ->amino group in carbamyl phosphate s directly donated by aspartate n transamination reactions. False!
Explaination:"Aspartate donates its amino group, becoming the a-keto acid oxaloacetate. Alpha-Ketoglutarate accepts the amino group, becoming the amino acid glutamate"
For the last-yes ammonia is formed!

so u saying amino group comes from glutamate (not aspartate - it only donates it)...
if u agree with both options then both has to right, right?

 

[PooKan]

pOH = - log[OH-]
pOH = 3 ; pH = 14-pOH =11

oh ya...sorry the options looked like i solved such questions before...are u sure its 10-3? if yes thn ur right it must be 11

 

[PooKan]

which of the following does NOT occur when anaesthetics are applied to neural membrane?
-K+ flux remains unchanged
-Ca++ flux through the membrane
-resting potential drops to a more negative value (ans)
y cant it be second option ? as K+, Cl- n Ca++ conductances remain unchanged
and more positive means Action potential so here the resting potential is more negative hence no action potential during anaesthetics...plz correct me if iam wrong....

 

[Hatico]

1)Triglyceride absorbed into the lymphatic system is transported to the liver as which of the following?

1. Very low density lipoprotein
2. Low density lipoprotein
3. Chylomicrons ans
4. Liposomes
5. Micelles

This Q is confusing.
If answer is 3 that Q is wrong! Chylomicrons are never transported to the liver - only to extrahepatic tissues.
If Q is correct that answer is wrong. Only LDL and HDL carry tryglicerids (and cholesterol) to the liver

 

[PooKan]

a fall in BP causes increased activity of vasoconstrictor center and decreased activity of cardioinhibitory center....
i thought vasoconstriction causes fall in BP not the other way

 

[DancingKoala]

a fall in BP causes increased activity of vasoconstrictor center and decreased activity of cardioinhibitory center....
i thought vasoconstriction causes fall in BP not the other way

I thought so too

 

[Holly J]

@Hatica....About the TGs and chylomicrons...I read that just yesterday. Yes it does say TGs....Still kinda confused. Will have to do some more reading!


@pookan... Vasoconstriction=increase in BP.

 

[Hatico]

During the period of isovolumetric contraction, which of the following happens?

1. The semilunar valves are open.
2. The left ventricular pressure is rising rapidly.ans
3. The aortic pressure is slightly less than the left ventricular pressure.
4. The right ventricular pressure is greater than the left ventricular pressure.

I see that A,C,D are not correct. Why is B correct? There is all valves are closed - how can ventricular pressure be "rising rapidly"? Should be left atria? Please, explain!

 

[Holly J]

During the period of isovolumetric contraction, which of the following happens?

1. The semilunar valves are open.
2. The left ventricular pressure is rising rapidly.ans
3. The aortic pressure is slightly less than the left ventricular pressure.
4. The right ventricular pressure is greater than the left ventricular pressure.

I see that A,C,D are not correct. Why is B correct? There is all valves are closed - how can ventricular pressure be "rising rapidly"? Should be left atria? Please, explain!

The pressure is raising coz the ventricles are contracting...even though all the valves are closed.

 

[Hatico]

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