Chapters 16&17 Flashcards Preview

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Flashcards in Chapters 16&17 Deck (81)
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1

What is the name given to the neurons that monitor carbon dioxide leveled in the blood and are located in the carotid and aortic arteries?

Chemoreceptors

2

A (long, short) blood vessel with a (small, large) diameter would have the greatest resistance to blood flow.

Long
Small

3

Pulmonary circulation goes from the (right, left) (atrium, ventricle) to the (right, left) (atrium, ventricle)

Right ventricle
Left atrium

4

Which blood vessel(s) contain blood with the highest oxygen content?

Pulmonary veins

5

From which major blood vessel do all systemic blood vessels branch?

Aorta

6

Where is the cardiovascular center located?

Medulla

7

Which circulatory route brings blood to the tissues and back to the heart?

Systemic

8

Which circulatory path carries blood rich in substances absorbed from the gastrointestinal tract?

Hepatic portal

9

(Arteries, veins) (closest to, farthest from) the heat have the lowest blood pressure.

Vein, closet to

10

Vascular resistance is primarily to due which factor?

Fiction between blood-walls

11

When the left ventricle contracts, what term is given to the pressure in arteries that is generated?

Systolic

12

In fetal circulation p, which structure connects the fetal pulmonary trunk to the aorta, allowing much blood to bypass the lungs?

Ductus arteriosus

13

Stimulation of the ______ would cause the heart rate to decrease.

Vagus nerve

14

In the fetus, what is the opening that allows blood to pass directly from the right atrium to the left atrium?

Foramen ovale

15

With aging, cardiac muscle fibers ____ in size.

Decrease

16

Defenses of the body that are present at birth are referred to as _____ immunity

Innate

17

The fetal circulation differs from the adult circulation because of which organ system that is nonfunctional?

Respiratory

18

As blood passes from the superior and inferior vena cave to the lungs, it moves through the (right, left) (atrium, ventricle) to the (right, left) (atrium, ventricle) and out through the (pulmonary trunk, pulmonary veins).

Right atrium
Right ventricle
Pulmonary trunk

19

Carry blood away from the heart

Arteries

20

Vessels with high blood pressure

Arteries

21

Vessels with the fastest flow

Arteries

22

Vessels that exchange food and waste between blood and tissues

Capillaries

23

Vessels that return interstitial fluid to the bloodstream

Lymphatic vessels

24

Vessels with slowest blood flow

Capillaries

25

Vessels with thick muscle layer

Arteries

26

Vessels si very thin walls; only have a single layer of cells

Capillaries

27

Vessels with a very thin muscle layer

Veins

28

Vessels that exhibit a pulse

Arteries

29

Vessels that bring to almost every cell in the body

Capillaries

30

Known as "exchange vessels"

Capillaries