When the normal heart of a man is injected with physiological concentration of adrenaline it shows

  • A

    Systolic arrest

  • B

    Decreased rate

  • C

    Sustained increased rate

  • D

    First increased then normal rate

Similar Questions

Secretion of aldosterone in birds, man and other mammals is stimulated by

If a human female starts developing male characteristics like beared, degeneration of uterus and ovaries, enlargement of clitoris etc. It may be due to

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

  • [AIPMT 1992]

Feeling the tremors of an earthquake a scared resident of seventh floor of a multistoryed building starts climbing down the stairs rapidly. Which hormone initiated this action?

  • [AIPMT 2007]