Which of the following organs is not involved in calcium homeostasis? A. Kidneys B. Skin C. Intestines D. Lungs Correct answer : D. Lungs Kidneys – Filtration, reabsorption
The prime driving force for counter current multiplier system is: A. Medullary hyperosmolarity B. Reabsorption of Na+ in thick ascending limb C. Action of ADH via aquaporin channels
The cell bodies of orexinergic neurons are present in: A, Locus ceruleus B. Dorsal raphe C. Lateral hypothalamic area D. Hippocampus Correct answer :C. Lateral hypothalamic area
The hyperkinetic features of Huntington’s disease are due to the loss of: A. Nigrostriatal dopaminergic system B. Intrastriatal cholinergic system C. GABA-ergic and cholinergic system D. Intrastriatal GABA-ergic
The first reflex response to appear as spinal shock wears off in humans is: A. Tympanic reflex B. Withdrawal reflex C. Neck righting reflex D. Labyrinthine reflex Correct
On electromyography, all of the following features suggest denervation, except: a) Unrgulated firing of individual muscle fibres b) Small short-duration polyphasic action potentials c) Presence of positive sharp
The main difference between REM sleep and wakefulness is: a) EEG desynchronization b) Rapid eye movements c) Decreased muscle tone d) Penile erection Correct answer : c) Decreased
Follicular stimulating hormone receptors are present on: a) Theca cells b) Granulosa cells c) Leydig cells d) Basement membrane of ovarian follicle Correct answer : b) Granulosa cells
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