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chapter 19

Authored by wc_shuttlerun377 wc_shuttlerun377

Science

University

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chapter 19
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35 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Arterial pressure in the pulmonary circulation is much higher than in the systemic circulation because of its proximity to the heart.


True

False

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which will NOT occur if blood pressure drops below homeostatic levels?


 

Vasomotor center of the medulla will trigger vasoconstriction.


 

Cardiac output will increase.


 

Baroreceptors in the carotid sinuses and aortic arch will be stimulated.


 

The cardioacceleratory center of the medulla will be activated.


3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following best describes an example of autoregulatory vasodilation in a capillary bed?

Constriction of blood flow during digestion


Increase of blood flow in response to low oxygen levels


Constriction of blood flow in response to fear


Reduction of blood flow during exercise


4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The arterioles are under the highest pressure of all the vessels.


True

False

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The carotid sinus reflex protects the blood supply to the brain, whereas the aortic reflex is more concerned with maintaining adequate blood pressure in the systemic circuit as a whole.


True

False

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The inferior vena cava receives blood from which region of the body?

Heart itself


Head and neck


Chest and arms


Lower limbs and abdominal region


7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Blood is typically drawn from arteries.


 

True


False

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