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
