Which of the following consist/s of modified ganglionic sympathetic neurons?
a) adrenal cortex
b) adrenal medulla
c) both a and b
d) none of them
Explanation Stimulation of the adrenal medulla is via preganglionic sympathetic fibers causing release of dopamine, norepinephrine and epinephrine
Which of the following hormone/s is/are synthesized in adrenal medulla?
a) epinephrine
b) norepinephrine
c) aldosterone
d) both a and b
Which of the following is the more potent stimulator of metabolic activities, bronchial dilation and increase blood flow to skeletal muscles?
a) epinephrine
b) norepinephrine
c) aldosterone
d) both a and b
Explanation epinephrine also known as adrenaline works in emergency situation i.e fight or flight
Which of the following is/are the effect/s of epinephrine?
a) it dilates bronchi
c) it increase blood flow to heart
b) it increases blood flow to skeletal muscles
d) all of these
Which of the following has the greater influence on peripheral vasoconstriction and blood pressure?
a) epinephrine
b) norepinephrine
c) aldosterone
d) both a and b
Explanation Norepinephrine also known as Noradrenalin works in stabilizing the effect of epinephrine i.e rest and digest
Which of the following hormone is used clinically as a heat stimulant and to dilate the bronchioles during acute asthmatic attacks?
a) epinephrine
b) norepinephrine
c) aldosterone
d) both a and b
