Quiz 5 - Vessels and Hemodynamics

Question 1

A sudden loss of consciousness due to sudden emotional stress

Answer 1

vasodepressor syncope

Question 2

T/F: Speed of blood flow in cm/sec is inversely related to cross-sectional area.

Answer 2

True

Question 3

Resistance can be increased or decreased by changes in…

Answer 3

Blood vessel diameter, blood viscosity, and total length of blood vessels = all of the above

Question 4

The following are effects of the sympathetic nerve on the heart…

Answer 4

increase in contractility
increase in heart rate
increase in stroke volume

Question 5

The cardiovascular center is located at/in

Answer 5

the medulla oblongata

Question 6

The following can be a factor in edema:

Answer 6

lymphatic vessels not functioning, blood hydrostatic pressure increase, and blood colloid pressure dropping = all of the above

Question 7

T/F: Speed of blood flow in cm/sec is inversely related to diameter of the vessel.

Answer 7

True

Question 8

These receptors detect changes in pressure within blood vessels?

Answer 8

baroreceptors

Question 9

All of the following play a role in venous blood coming back to the hear:

Answer 9

respiratory pump, skeletal pump, and pressure difference = all of the above

Question 10

Please provide three things that can have an effect on the velocity of blood flow:

Answer 10

Speed of blood flow in cm/sec is inversely related to the cross-sectional area
Resistance
Pressure