Peripheral resistance is maximum in_______________?
Correct answer: C. Arteriole
- A. Aorta
- B. Artery
- C. Arteriole
- D. Vein
Explanation
Arterioles provide the greatest resistance because their small radius is actively regulated by smooth muscle. Since resistance varies inversely with the fourth power of radius, small changes in arteriolar diameter have major effects on blood flow.
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
2nd heart sound is characterized by all except______________?
Absolute period when whole heart is in diastole is______________?
Absolute refractory period in heart______________?
All the heart valves are open during which stage of cardiac cycle __________________?
Blood supply to the brain during moderate exercise________________?