Where are the central centers responsible for regulating the ...

[jeatrice]

Where are the central centers responsible for regulating the cardiovascular system located?
 
  a. Aortic bodies
  b. Brainstem
  c. Carotid arteries
  d. Cerebral hemispheres

Question 2

Changes in the rate of cardiac contractions are affected primarily by changes in which of the fol-lowing?
 
  a. Sympathetic or parasympathetic tone
  b. Ventricular afterload
  c. Ventricular contractility
  d. Ventricular preload

[dantucker]

Answer to Question 1

ANS: B
Central control of cardiovascular function occurs via interaction between the brainstem and se-lected peripheral receptors.

Answer to Question 2

ANS: A
Those factors affecting heart rate are mainly of central origin (i.e., neural or hormonal).

[jeatrice]

Thanks for the timely response, appreciate it

[ultraflyy23]

Excellent