Ch. 19 Module 3: Section 19.06-19.10 Dynamic Study Module

Hypertension is defined physiologically as a condition of sustained arterial pressure of __________ or higher.

140/90

Match the following term with its description: Total blood vessel length.

A source of resistance related to the distance blood has to travel through blood vessels to reach a destination

Match the following term with its description: Blood viscosity.

A source of resistance related to the thickness, or "stickiness," of the blood

Which of the following acts on both the kidneys and blood vessels to raise blood pressure?

Antidiuretic hormone

Identify the step in the homeostatic response to low blood pressure indicated by "B."

Baroreceptors are inhibited.

Identify the step in the homeostatic response to high blood pressure indicated by "B."

Baroreceptors are stimulated.

Identify the step in the homeostatic response to high blood pressure indicated by "A."

Blood pressure rises.

Identify the step in the homeostatic response to high blood pressure indicated by "F."

Decline in cardiac output and peripheral resistance return blood pressure to homeostatic range.

Identify the step in the homeostatic response to low blood pressure indicated by "C."

Declining impulses from baroreceptors stimulate cardioacceleratory center and stimulate vasomotor center.

Match the following term to the correct description: Angiotensin II.

Hormonal control of blood flow

Identify the step in the homeostatic response to high blood pressure indicated by "C."

Impulses from baroreceptors stimulate cardioinhibitory center and inhibit vasomotor center.

Identify the step in the homeostatic response to low blood pressure indicated by "D."

Increase in sympathetic impulses to heart causes increase in heart rate, contractility, and cardiac output.

Match the following term to its correct description: Diastolic pressure.

Lowest level of aortic pressure

Match the following term with the correct description: Nitric oxide.

Metabolic control of blood flow

Match the following term to the correct description: Stretch of vascular smooth muscle.

Myogenic control of blood flow

Match the following term to the correct description: Sympathetic impulses.

Nervous system control of blood flow

Match the following term with its description: Resistance.

Opposition to flow (a measure of the amount of friction blood encounters as it passes through the vessels)

Match the following term to its correct description: Systolic pressure.

Peak of aortic pressure

Match the following term to its correct description: Mean arterial pressure.

Pressure that propels blood to the tissues

Which of the following is the major force generating blood flow?

Pumping action of the heart

Match the following term to its correct description: Pulse pressure.

The difference between systolic and diastolic pressure

Match the following term with its description: Blood pressure.

The force per unit area exerted on a vessel wall by the contained blood

Match the following term with its description: Blood flow.

The volume of blood flowing through a vessel, an organ, or the entire circulation in a given period

Identify the step in the homeostatic response to low blood pressure indicated by "E."

Vasomotor fibers stimulate vasoconstriction, causing an increase in total peripheral resistance (TPR).

Most neural controls of blood pressure involve input from baroreceptors, which are sensitive to __________.

changes in blood pressure

Any condition in which blood vessels are inadequately filled and blood cannot circulate normally is called __________.

circulatory shock

Blood flow would be increased by __________.

increasing cardiac output

The major long-term mechanism of blood pressure control is provided by the __________.

kidneys

Cardiogenic shock is most likely to result from __________.

multiple heart attacks

Loss of vasomotor tone that results in a huge drop in peripheral resistance is known as __________.

vascular shock