Hemodynamics & Cardiovascular repsonses

Hemodynamics refers to the study of blood flow

• True

• False

Which of the following does not control vasoconstriction and vasodilation extrinsically?

• CNS

• Chemoreceptors

• RAAS system

• Endothelial regulators

Tags

NGSS.HS-LS1-3

Blood pressure is controlled by several reflex mechanisms, including

the baroreceptor, cardiopulmonary receptor, chemoreceptor, and Bainbridge reflexes

• True

• False

Tags

NGSS.HS-LS1-3

Myogenic autoregulation ...

• is directly

  controlled by smooth muscle

• provides protection against excessive arterial

  wall stress

• is independent of the endothelium

• All of the above

Tags

NGSS.HS-LS1-3

Myochronic autoregulation is a type of vasoconstriction in arteries

• True

• False

Tags

NGSS.HS-LS1-3

During aerobic exercise, ___ in heart rate and stroke

volume contribute to the increase in cardiac output

• Increase

• Decrease

• Maintenance

ACh and Sheer stress are both indications that arteries should undergo vaporization.

• True

• False

An increase in SV is the net result of ___ preload, ___afterload, and ___ contractility.

• increased, increased, increased

• decreased, decreased, decreased

• Increased, decreased, increased

• increased, increased, decreased

• decreased, increased, decreased

During exercise, there is a redistribution of Q. A greater proportion of Q goes to skin, cardiac and skeletal muscles.

• True

• False

Tags

NGSS.HS-LS1-3

Exercise causes increased diastolic blood pressure

• True

• False

Tags

NGSS.HS-LS1-3