ndb 1 /HELP

[ar78cx]

Hey,
any input is appreciated,

* Viscosity is greatest in :
1- vasa recta
2- aorta
3- pulmonary artery
4- pulmonary vein
5- SVC

*Sodium permeability ( conductance ) in the axon membrane is maximal during
1- + aftepotential
2- - after potential
3- ascending phase of action potential
4- descending phase of action potential

* What inhibits PFK
1- ATP
2- Nad
3- citrate

THX

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[DrPreeti]

hi ar78 i think the answer to the qs are[q1]-1 ,[q2]-3 ,[q3]-2.plz.correct me if i m wrong.all the best

 

[anjali_45]

[

* What inhibits PFK
1- ATP
2- Nad
3- citrate

i think it is ATP

 

[meverick]

Hey,
any input is appreciated,

* Viscosity is greatest in :
1- vasa recta
2- aorta
3- pulmonary artery
4- pulmonary vein
5- SVC

*Sodium permeability ( conductance ) in the axon membrane is maximal during
1- + aftepotential
2- - after potential
3- ascending phase of action potential
4- descending phase of action potential

* What inhibits PFK
1- ATP
2- Nad
3- citrate

THX

hi viscosity is greatest in pulmonary artery
sodium permeability is maximal during ascending phase of action potential
atp is an allsteric inhibitor of pfk

 

[dentist78]

[

* What inhibits PFK
1- ATP
2- Nad
3- citrate

i think it is ATP

Obviously when u have enough energy (ATP) You dont need to burn more glucose in glycolysis to generate more energy and therefore ATP inhibits PFK 1 thereby inhibiting glycolysis.

 

[NASA]

hi,
the absorption of calcium from the small intestine is increased by...

1. ingestion of fat
2. high phosphate intake
3. the administration of vit A
4. Lowering the pH in the intestine.
5. administration of parathyroid hormone.

any input is appreciated....

thx
cheers...

 

[Jaydent]

the answer is d)lowering the pH.hope this helps

 

[NASA]

hi maam,
can u pls explain it to me pls........

thx.

 

[scha2005]

hi maam,
can u pls explain it to me pls........

thx.

hi
if u see decs physio [blood] section
there its written calcium is absorbed max from gi mucosa and kidney tibules
lowering of pH causes increased absorption of calcium from gi mucosa
...well exact mec even i dont knw

 

[NASA]

hi scha2005,
thats right...i found the answer to b lowering of pH .

thx so much for the input..
cheers...

 

[meverick]

hi
if u see decs physio [blood] section
there its written calcium is absorbed max from gi mucosa and kidney tibules
lowering of pH causes increased absorption of calcium from gi mucosa
...well exact mec even i dont knw

i think in decks it says that maximum excretion of calcium takes place in g.i mucosa.i vaguely remember that even vit a incerases uptake of calcium.correct me if wrong i will check physio decks soon.

 

[scha2005]

i think in decks it says that maximum excretion of calcium takes place in g.i mucosa.i vaguely remember that even vit a incerases uptake of calcium.correct me if wrong i will check physio decks soon.

i didnt get what actually u want to say?
but with increased uptake of calcium ...its absorbed via gi mucosa and the kidney tubules and its excreated in feaces....
with more of secreted calcium the condition is of hypeparathyroidism
let me knw if u mean something else!!

 

[NASA]

hi,
the effective filtration pressure under the foll. conditions is........
Cpr - 30mm of hg
plasma osmotic pressure - 6,000mm of hg
tissue fluid osmotic pressure - 5,975mm of hg
tissue fluid pressure - 5mm of hg

1. plus 10 mm hg
2. minus 10mm hg
3. 0
4. plus 5 mm hg
5. minus 5 mm hg

thx a lot
cheers..

 

[NASA]

hi meverick,
In one of ur previous posts u hav said the viscosity of blood is more in pulmonary artery....can u pls explain it ?

thx
cheers.....

 

[treasure]

hi,
the effective filtration pressure under the foll. conditions is........
Cpr - 30mm of hg
plasma osmotic pressure - 6,000mm of hg
tissue fluid osmotic pressure - 5,975mm of hg
tissue fluid pressure - 5mm of hg

1. plus 10 mm hg
2. minus 10mm hg
3. 0
4. plus 5 mm hg
5. minus 5 mm hg

thx a lot
cheers..

Hi ssaug,
i had a similar question in my actual boards...
I had seen that there is a formula to solve such questions in the first aid mle book...I think in the physio section... I am a bit busy with my part 2 preps...so maybe you would want to check it out in that book...
treasure

 

[Athene]

hi,
the effective filtration pressure under the foll. conditions is........
Cpr - 30mm of hg
plasma osmotic pressure - 6,000mm of hg
tissue fluid osmotic pressure - 5,975mm of hg
tissue fluid pressure - 5mm of hg

1. plus 10 mm hg
2. minus 10mm hg
3. 0
4. plus 5 mm hg
5. minus 5 mm hg

thx a lot
cheers..

net filtration pressure is
(capillary pressure-interstitial fluid P)-(plasma colloid osmotic P -interstial fluid osmotic P)
In this particular case
(30-5)-(6000-5975)
25-25
0 mmhg

 

[NASA]

hi treasure and meetlife.....
thank u so much...

cheers..