Unit 3 second test

Question 1

the transportation network that moves nutrients to organs and carries waste away

Answer 1

cardiovascular system

Question 2

main function is to protect the body from disease part of the body’s immune system

Answer 2

white blood cells

Question 3

the most numerous cells, main function is to transport oxygen to the cells of the body

Answer 3

red blood cells

Question 4

looks like little plates under the microscope, chief job is to start the clotting process

Answer 4

platelets

Question 5

is the 55% of the blood that is not made up of cells, but rather fluid. is 90% water, and 10% other compounds

Answer 5

plasma

Question 6

the large vessels that carry blood away from the heart

Answer 6

arteries

Question 7

smaller arteries in diameter

Answer 7

arterioles

Question 8

the smaller blood vessels

Answer 8

capillaries

Question 9

from the capillaries the blood flows back to the heart in ?

Answer 9

venules

Question 10

when the venules become wide in diameter it is called a

Answer 10

vein

Question 11

is carried in the arteries and is red in color

Answer 11

oxygenated blood

Question 12

travels in the veins back to the heart is more brownish in color

Answer 12

deoxygenated blood

Question 13

is the main organ of the circulatory system.

Answer 13

heart

Question 14

the hearts four chambers

Answer 14

right atrium left atrium right ventricle left ventricle