Mcq Subject: Physiology
Which of the following acts as the major neurotransmitter in substantia nigra:
A. Dopamine
B. Noradrenaline
C. Acetylcholine
D. Acetylcholine
View DescriptionIntestinal absorption of glucose occurs with the help of:
A. GLUT
B. Calcium channel
C. SGLT
D. Sodium channel
View DescriptionThe sigmoid nature of Hb-O2 dissociation curve is because of:
A. Binding of one O2 molecule increase the affinity for the next O2 molecule.
B. Alpha chain has more affinity for O2 than beta chain
C. Beta chain has more affinity for than alpha chain
D. Hemoglobin in acidic in nature.
View DescriptionDrug transpo process that requires energy
A. Active transpo
B. Passive diffusion
C. Conventive current
D. Pinocytosis
View DescriptionAfferent component of corneal reflex is mediated by:
A. Vagus nerve
B. Facial nerve
C. Trigeminal nerve
D. Glossopharyngeal nerve
View DescriptionA 32 year old high altitude mountaineer is observed to have a hematocrit of 70%. Which of the following represents the most likely cause/explanation
A. Polycythemia with increased red cell mass
B. Relative polycythemia due to dehydration
C. Polycythemia due to hemoconcentration
D. Polycythemia with high altitude pulmonary edema
View DescriptionEvacuation of the urinary bladder and stool with profuse sweating is a feature of:
A. Mass reflex
B. Magnet reaction
C. Decoication
D. Hemisection of the spinal cord
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