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.Management Sciences
Category: Physiology Mcqs
Wallenberg degeneration is seen in______________?
A. Proximal cut end of nerve with cell body
B. Distal cut end of nerve without cell body
C. Both the free ends of the cut nerve
D. All are true
The best stimulator of respiratory center is____________?
A. Decrease in arterial carbon dioxide level
B. Increase in arterial carbon dioxide level
C. Increase in arterial oxygen level
D. None of the above
Copious flow of watery saliva is secreted in response to _____________?
A. Parasympathetic stimulation
B. Sympathetic stimulation
C. CNS stimulation
D. sensory stimulation
Function of GABA on CNS is_______________?
A. Neuronal inhibition
B. Neuronal activation
C. Glial cell inhibition
D. Glial cell activation
Glomerular capillary pressure differ from other capillaries of body in______________?
A. Higher filtration pressure
B. Lower filtration pressure
C. Both of the above
D. None
Calcium ions triggers muscle contraction by binding to ___________________?
A. Actin
B. Myosin
C. Troponin
D. Tropomyosin
Iodine is primarily important in the biochemical synthesis of______________?
A. ACTH
B. Thyroxine
C. Adrenaline
D. Calcitonin
Which one of the following is a regulatory protein of the muscle ?
A. Troponin
B. Myosin
C. Actin
D. Protein- C
Normally, the rate of the heart beat in a human is determined by _________________?
A. The bundle of His
B. All cardiac muscle
C. The sinoatrial node
D. The cervical ganglion
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