33.1 and 33.2 Vocab Flashcards Preview

Biology > 33.1 and 33.2 Vocab > Flashcards

Flashcards in 33.1 and 33.2 Vocab Deck (16):
1

myocardium

thick middle muscle layer of the heart

2

atrium

upper chamber of the heart that receives blood from the rest of the body

3

ventricle

lower chamber of the heart that pumps blood out of the heart to the rest of the body

4

pulmonary circulation

path of circulation between heart and lungs

5

systemic circulation

path of circulation between the heart and the rest of the body

6

pacemaker

small group of cardiac muscle fibers that maintains the heart's pumping rhythm by setting the rate at which the heart contracts: the sinoatrial (SA) node

7

artery

large blood vessel that carries blood away from the heart to the tissues of the body

8

capillary

smallest blood vessels: bring nutrients and oxygen to the tissues and absorbs carbon dioxide and waste products

9

vein

blood vessel that carries blood from the body back to the heart

10

plasma

straw-colored liquid portion of the blood

11

red blood cell

blood cell containing hemoglobin that carries oxygen

12

hemoglobin

iron-containing protein in red blood cells that binds oxygen and transports it to the body

13

white blood cell

type of blood cell that guards against infection, fights parasites, and attacks bacteria

14

platelet

cell fragment released by bone marrow that helps in blood clotting

15

lymph

fluid that is filtered out of the blood

16

atherosclerosis

a condition in which fatty deposits called plaque build up inside artery walls and eventually cause the arteries to stiffen