When the normal heart of a man is injected with physiological concentration of adrenaline it shows
Systolic arrest
Decreased rate
Sustained increased rate
First increased then normal rate
Injury to adrenal cortex is not likely to affect the secretion of which one of the following?
........ is middle layer of adrenal cortex
Young boys at puberty start growing facial hairs. This is an example of
Angiotensin is derived from plasma protein "angiotensinogen'' by the action of renin and other nervous stimuli. Angiotensin stimulates the following