Medical MCQs

5099 MCQs  (Page 483 of 510)

Receptors for olfactory sensation are present in ______________?
A. Lateral walls
B. Nasal septum
C. Lateral wall and nasal septum above superior concha
D. None of the above
Voluntary movement of eye ball is controlled by______________?
A. Superior colliculus
B. Frontal eye field
C. Cerebellum
D. Visual cortex area
Axon hillock is part of the soma of neuron which________________?
A. Has dense niSSL grandules
B. Has no niSSL granules
C. Is at commencement of dendrites
D. Is round in shape
In nerve , the magnitude of the action potential overshoot is normally a function of the______________?
A. Magnitude of the stimulus
B. Intracellular potassium concentration
C. Extracellular sodium concentration
D. Resting membrane potential
Stimulating mechanoreceptors or nociceptors in mouth triggers the_______________?
A. Jaw opening reflex
B. Jaw clenching reflex
C. Jaw gnashing reflex
D. None of the above
Following are the changes during accommodation except_______________?
A. Constriction of pupil
B. Dilatation of pupil
C. Convergence of eye ball
D. Increase in the anterior curvature of lens
Pain is conducted by_______________?
A. A-alpha fibers
B. A-beta fibers
C. A-gamma fibers
D. A-delta fibers
Hunger centre of brain is________________?
A. Hypothalamus
B. Stria nigra
C. Frontal lobe
D. Temporal lobe
The first physiological response to high environmental temperature is_______________?
A. Sweating
B. Vasodilatation
C. Decrease heat production
D. Non- shivering thermogenesis