unit 4

Question 1

Upper chamber of the heart

Answer 1

Atrium

Question 2

Lower chamber of the heart

Answer 2

Ventricle

Question 3

Right side of the heart pumps blood from heart to lungs

Answer 3

Pulmonary circulation

Question 4

Left side of the heart pumps blood to the rest of the body

Answer 4

Systemic circulation

Question 5

Flaps of connective tissue you between atria and the ventricles

Answer 5

Valves

Question 6

Cells that starts the wave of muscle contraction through the heart

Answer 6

Pacemaker

Question 7

Large vessels that carries blood from the heart to the tissues of the body

Answer 7

Arteries

Question 8

Smallest of the blood vessels

Answer 8

Capillaries

Question 9

After blood goes through capillary system, these return to the heart

Answer 9

Veins

Question 10

Condition where plaque builds up on the inner walls of the arteries

Answer 10

Atherosclerosis

Question 11

Sustained elevated blood pressure of 140/90 or higher

Answer 11

Hypertension

Question 12

Straw-colored fluid that makes up about 55% of the blood

Answer 12

Plasma

Question 13

Fragment of cytoplasm enclosed in a piece of salmon brain and is released into the bloodstream

Answer 13

Platelet

Question 14

Food that is lost by the blood and returns it back to the circulatory system

Answer 14

Lymph

Question 15

Passageway for both food and air

Answer 15

Pharynx

Question 16

Windpipe

Answer 16

Trachea

Question 17

Bottom of the cavity, large flat muscle

Answer 17

Diaphragm

Question 18

Loss of elasticity in the tissues of the lungs

Answer 18

Emphysema

Question 19

Thick layer of muscle in the walls of the heart

Answer 19

Myocardium