Mcq Subject: Physiology
Pyrogens act on which site of brain ?
A. Basal ganglia
B. Limbic system
C. Thalamus
D. Hypothalamus
View Description“Inflation of lungs induces fuher inflation” this is explained by
A. Hering-Breuer inflation reflex
B. Hering-Breuer deflation reflex
C. Head's paradoxical reflex
D. J-reflex
View DescriptionAll of the following cause hyperventilation except
A. Decreased pH in CSF
B. Decreased plasma HCO3
C. CO poisoning
D. Increased adrenergic levels
View DescriptionGlucose transpo occur with the help of following ion in absorption in gut region
A. Na+
B. K+
C. Ca+
D. CI-
View DescriptionAldosterone acts at:
A. Collecting duct
B. Glomerulus
C. Proximal convoluted tubule
D. Loop of Henle
View DescriptionThe most important action of Secretin is to
A. neutralize the acid from the stomach
B. increase secretion of bicarbonates by pancreas
C. decrease gastric secretion
D. cause contraction of pyloric sphincter
View DescriptionInitiation of nerve impulse occurs at the axon hillock because :
A. It has a lower threshold than the rest of axon
B. It is unmyelinated
C. Neurotransmitter release occurs here
D. None of the above
View DescriptionOsteoclast has specific receptor for:
A. Parathyroid hormone
B. Calcitonin
C. Thyroxin
D. Vit D3
View DescriptionWhen VA/Q is infinity, it means
A. Dead space
B. The PO2 of alveolar air is 159 mmHg and PCO2 is 40 mmHg
C. Paial pressure of O2 and CO are equal
D. Atelectasis
View DescriptionLowest most level of integration of stretch reflex is at
A. Cerebral cortex
B. Lower Medulla
C. Spinal cord
D. All of the above
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