Body temperature is maintained by ______________?
(A) Postural position
(B) Covering of the body
(C) Peripheral vasoconstriction
(D) all of the above
which receptor is responsible for monitoring the rate of muscle stretch ?
(A) Nuclear bag intrafusal fibers
(B) Nuclear chain
(C) Golgi tendon organ
(D) Pacinium corpuscles
First change to occur after nerve cut is_______________?
(A) Schwan cell mitosis
(B) Axonal sprouting
(C) Myelin sheath degeneration
(D) Nuclear disintegration
Blood brain barriers is absent in all of the following areas except__________________?
(A) Subfornical region
(B) Habenuclear trigone
(C) Area posterma
(D) Neurohypophysis
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