Coronary blood flow is usually predominantly controlled by_____________?
Correct answer: A. Auto regulation
- A. Auto regulation
- B. Hormones
- C. Parasympathetic impulses
- D. Sympathetic impulse
Explanation
Coronary blood flow is predominantly controlled by local metabolic autoregulation, particularly the effects of myocardial oxygen demand and metabolites such as adenosine. Autonomic and hormonal influences are secondary.
Last updated
Practise Cardiovascular Physiology
43 free Cardiovascular Physiology MCQs from Physiology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Physiology questions like this
Physiology is on 3 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
The first heart sound is produced by the_____________?
Normally, the rate of the heart beat in a human is determined by _________________?
Stroke output of each ventricle in normal adult is_____________?
Cardiac output is not affected by __________________?
All the heart valves are open during which stage of cardiac cycle __________________?