Physiology

Q: Juxtamedullary nephrons:

(a) :  Have smaller sized glomeruli
(b) :  Possess short loops of Henle
(c) :  Have slow rate of filtration
(d) :  Both descending and ascending limbs of loop of Henle contain thin segments.
(e) :  None of the above
Answer:  Both descending and ascending limbs of loop of Henle contain thin segments.
Explanation:  

Q: Most important mechanism which gets triggered in the first few hours after large increase in salt and water intake is?

(a) :  Small increase in arterial pressure
(b) :  Suppression of angiotensin II formation
(c) :  Activation of low pressure receptor reflexes
(d) :  Stimulation of natriuretic systems
(e) :  None of the above
Answer:  Activation of low pressure receptor reflexes
Explanation:  

Q: Which of the following are vitamin K dependant clotting factors?

(a) :  II and IV
(b) :  IX and X
(c) :  III and V
(d) :  VI and VII
(e) :  None of the above
Answer:  IX and X
Explanation:  

Q: Pulmonary compliance is not decreased in?

(a) :  COPD
(b) :  Decreased surfactant production
(c) :  Pulmonary congestion
(d) :  Pulmonary fibrosis
(e) :  None of the above
Answer:  COPD
Explanation:  

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