A & P Test Four - 7.12

Pulse pressure is the difference between [blank_start]systolic[blank_end] and [blank_start]diastolic[blank_end] pressure.

If your systolic blood pressure is 120 and your diastolic pressure is 67, what is the pulse pressure?

If your systolic blood pressure is 110 and your diastolic is 80, what is your mean arterial pressure?

[blank_start]Vascular distensibility[blank_end] is the ability of a vessel to stretch.

[blank_start]Veins[blank_end] are the most distensible vessels. They are [blank_start]8[blank_end] (numeral) times more distensible than arteries.

Vascular distensibility equals [blank_start]vascular tone[blank_end].

[blank_start]Vascular compliance[blank_end] is the total quantity of blood that can be stored in a given portion of the circulation for each mmHg of pressure. It's the ability of a vessel to stretch and hold volume.

[blank_start]Compliance[blank_end] is the ability of a vessel to stretch and hold volume.

The two factors affecting pulse pressure are [blank_start]arterial compliance[blank_end] and [blank_start]stroke volume[blank_end].

If all other factors are equal, the pulse pressure reflects the [blank_start]stroke volume[blank_end].

Factors Affecting Pulse Pressure: Increase in stroke volume [blank_start]increases[blank_end] pulse pressure. Conversely, decreases in stroke volume [blank_start]decrease[blank_end] pulse pressure. Decreases in arterial compliance [blank_start]increase[blank_end] pulse pressure. Increases in compliance [blank_start]decrease[blank_end] pulse pressure.

Which of the following describes how arteriosclerosis affects pulse pressure?

Match the following abnormal pressure pulse contours to their definitions: [blank_start]Arteriosclerosis:[blank_end] Decreases compliance of arterial tree, thus leading to increase in pulse pressure. [blank_start]Patent Ductus Arteriosus:[blank_end] Associated with low diastolic pressure and high systolic pressure, net result is very high pressure. [blank_start]Aortic regurgitation:[blank_end] Condition associated with backward flow of blood through the aortic valve. Low diastolic and high systolic pressure leads to high pulse pressure.

What number represents a widened pulse pressure?

What number represents a narrowed pulse pressure?

[blank_start]60[blank_end] (number) percent of the blood is in the veins.

When veins are constricted, large quantities of blood are transferred to the heart, thereby increasing [blank_start]cardiac output[blank_end].

The Law of LaPlace reminds us that as a structure [blank_start]expands[blank_end], it increases it radius.

Select the relationship between the Law of LaPlace, wall tension and radius. Increased vessel, [blank_start]increased[blank_end] radius, and [blank_start]increased[blank_end] tension