Why does mean arterial pressure only increase slightly during exercise when cardiac output increases many-fold?
What will be an ideal response?
Ans: Total peripheral resistance drops dramatically during exercise due to vasodilation of blood vessels to the skeletal muscle and skin.
You might also like to view...
The dura mater proper is the inner meningeal layer of the dura mater.
Answer the following statement true (T) or false (F)
Maria is a patient in the ward who was recently in a motor vehicle accident. Her injuries are causing her a lot of pain, and as a consequence to the morphine she's been given, her respiratory rate is quite low. Which of the following is likely to be TRUE?
A. The level of H+ ions in her blood has increased. B. The pH of her blood has increased. C. The alveolar O2 level has increased toward atmospheric levels. D. The level of O2 in her blood has increased. E. The alveolar CO2 has decreased to near atmospheric levels.
The eye measures about ________ in diameter
A. 2.5 mm B. 12.5 mm C. 2.5 cm D. 12.5 cm E. 22.5 cm
What part of the brain sets the basic respiratory rhythm?
A. Limbic system B. Pons C. Hypothalamus D. Medulla oblongata E. Cerebral cortex