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Author Question: What is the primary function of local or intrinsic cardiovascular control mechanisms? a. Alter ... (Read 62 times)

Pea0909berry

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on: Jul 16, 2018
What is the primary function of local or intrinsic cardiovascular control mechanisms?
 
  a. Alter local blood flow according to tissue needs.
  b. Alter the rate of cardiac contractions.
  c. Maintain a basal level of systemic vascular tone.
  d. Control the capacity of the venous reser-voir.

Question 2

The cardiovascular system regulates perfusion mainly by altering which of the following?
 
  a. Capacity and resistance of blood vessels
  b. Rate of cardiac contractions
  c. Strength of cardiac contractions
  d. Volume of cardiac contractions


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Tonyam972

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: A
Local, or intrinsic, controls operate independently, without central nervous control. Intrinsic con-trol alters perfusion under normal conditions to meet metabolic needs.

Answer to Question 2

ANS: A
The cardiovascular system regulates blood flow mainly by altering the capacity of the vasculature and the volume of blood it holds.


Pea0909berry

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Reply 2 on: Jul 16, 2018
Wow, this really help

bigcheese9

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Reply 3 on: Yesterday
Excellent

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