C.R.E.D. test Flashcards Preview

Biology > C.R.E.D. test > Flashcards

Flashcards in C.R.E.D. test Deck (64)
Loading flashcards...
1

What organs make up the circulatory system?

heart, a series of blood vessels, blood

2

superior vena cava

large vein that brings oxygen-poor blood from the upper part of the body to the right atrium

3

pulmonary veins

bring oxygen-rich blood from each of the lungs to the left atrium

4

pulmonary valve

prevents blood from flowing back into the right ventricle after it has entered the pulmonary artery

5

tricuspid valve

prevents blood from flowing back into the right atrium after it has entered the right ventricle

6

inferior vena cava

vein that brings oxygen-poor blood from the lower part of the body to the left atrium

7

aorta

brings oxygen -rich blood from the left ventricle to the body

8

pulmonary arteries

bring oxygen-poor blood to the right or left lung

9

aortic valve

prevents blood from flowing back into the left ventricle after it has entered the aorta

10

mitral valve

prevents blood from flowing back into the left atrium after it has entered the left ventricle

11

myocardium

thick layer of muscle that pumps blood

12

atrium

the upper chamber that recieves blood

13

ventricle

the lower chamber that pumps blood out of the heart

14

pulmonary circuation

right side; the pathway from the heart to the lungs

15

systemic circulation

from the left side of the heart to the rest of the body

16

valves

flaps of connective tissue between the atria and the ventricles

17

pacemaker

cells that start the wave of muscle contractions

18

aorta

large blood vessel; first of a series of blood vessels that carry blood through the body and back to the heart

19

what are the three types of blood vessels?

arteries, capillaries, and veins

20

arteries

large vessels that carry blood from the heart to the tissues of the body; except for pulmonary arteries, all arteries carry oxygen rich blood

21

capillaries

smallest of the blood vessels; the bring nutrients and oxygen to the tissues and absorbing carbon dioxide and other waste products from them

22

veins

blood vessels that bring blood back to the heart once it has gone through the capillary system

23

atherosclerosis

condition in which fatty deposits called plaque build up on the inner walls of arteries

24

plasma

straw colored fluid

25

hemoglobin

iron-contianing protein that binds to oxygen in the lungs and transports it to tissues throughout the body where the oxygen is rleased

26

what do red blood cells do?

transport oxygen

27

what do white blood cells do?

guard against infection, fight parasites, and attack bacteria

28

what makes blood clotting possible?

plasma proteins and ell fragments called platelets

29

What is the basic function performed by the human respiratory system?

to bring about the exchange of oxygen and carbon dioxide between the blood, the air, and tissues

30

pharynx

the throat; serves as a passageway for both air and food