How do parasympathetic neural signals affect the working of the heart?
Options
(a) Reduce both heart rate and cardiac output (b) Heart rate is increased without affecting the cardiac output. (c) Both heart […]
Fight- or- flight reaction cause activation of:
Options
(a) the parathyroid glands, leading to increased metabolic rate. (b) the kidney, leading to suppression of renin angiotensin-aldosterone pathway. (c) the adrenal medulla, leading to […]
Destruction of the anterior horn cell of the spinal cord would result in loss of :
Options
(a) voluntary motor impulses (b) commissural impulses (c) integrating impulses (d) sensory impulses
Correct Answer:
voluntary […]
A gymnast is able to balance his body upside down even in the total darkness because of :
Options
(a) Vestibular apparatus (b) Tectorial membrane (c) Organ of corti (d) Cochlea
Correct Answer:
Vestibular […]
A chemical signal that has both endocrine and neural roles is ?
Options
(a) Calcitonin (b) Epinephrine (c) Cortisol (d) Melatonin
Correct Answer:
Epinephrine
Explanation:
No explanation available. Be the first to write […]
Arbor vitae is composed of
Options
(a) grey matter (b) white matter (c) neuroglial cells (d) grey matter & white matter
Correct Answer:
grey matter & white matter
Explanation:
No explanation available. Be […]
Broca’s area in human brain controls
Options
(a) Movement of tongue (b) breathing and hiccup (c) Movement of vocal chords (d) Movement of tongue & breathing and hiccup
Correct Answer:
Movement of tongue […]
Epinephrine is
Options
(a) hormone of adrenal gland (b) nephrostomal part of mesoderm (c) clusters of glomeruli in mammalian kidney (d) frontal lobe of nephridia
Correct Answer:
hormone of adrenal gland
Explanation:
No […]
Glaucoma is caused due to
Options
(a) canal of Schlemm is blocked (b) increase the size of eye ball (c) opacity of lens (d) vitreous humour becomes dry
Correct Answer:
canal of Schlemm […]
After 14 years of age among men, which gland disappears?
Options
(a) thyroid (b) thymus (c) parathyroid (d) pineal
Correct Answer:
thymus
Explanation:
No explanation available. Be the first to write the explanation […]
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