Text Chapter 22: Heart and Circulatory System

Question 1

Atria

Answer 1

2 chambers

Question 2

Ventricles

Answer 2

2 chambers

Question 3

Valves

Answer 3

2 atrioventricular, 2 semilunar

Question 4

Connecting Blood Vessles

Answer 4

arteries and veins, arterioles and venules, capillaries

Question 5

Tissue Layers of the Heart

Answer 5

endocardium, myocardium, paricardium

Question 6

Endocardium

Answer 6

lining

Question 7

Myocardium

Answer 7

muscle

Question 8

Paricardium

Answer 8

outside

Question 9

Types of Blood Vessels Found in the Body

Answer 9

arteries, veins, arterioles, venules, capillaries

Question 10

Path of Blood Flow Through the Heart and Lungs and Body

Answer 10

left ventricle, semilunar valves, aorta, descending aorta, inferior vena cava, superior vena cava, right atrium, atrioventricular valve, right ventricle, semilunar valves, pulmonary artery (to right lung), pulmonary artery (to left lung), pulmonary veins (from right lung), pulmonary veins (from left lung), left atrium, atrioventricular valve

Question 11

Describe the Heartbeat

Answer 11

“lubb”- atrioventricular valves close, atria relax, ventricles contract, “dubb”- semilunar valves close

Question 12

Relate the Heartbeat to Heart Sounds and the ECG Pattern

Answer 12

P- atria contract (“lubb”), QRS- atria relax, ventricles contract, T- ventricles Relax (“dubb”)

Question 13

Components that Regulate Heartbeat

Question 14

Blood Pressure

Answer 14

systolic pressure/ diastolic pressure

Question 15

Systolic Pressure

Answer 15

pressure during ventricular contraction

Question 16

Diastolic Pressure

Answer 16

pressure during ventricular relaxation

Question 17

Functions of Blood

Answer 17

supplies nutrients, removes waste, equalizes temperature, transports hormones and antibodies

Question 18

Red Blood Cells

Answer 18

carry oxygen

Question 19

White Blood Cells

Answer 19

defend against invaders

Question 20

Platelets

Answer 20

initiate blood clotting

Question 21

Plasma

Answer 21

fluid portion of the blood

Question 22

LDL

Answer 22

low density lipoprotein, delivers cholesterol, “bad” cholesterol, leads to hypertension, atherosclerosis, stroke, heart attack

Question 23

HDL

Answer 23

high density lipoprotein, returns cholesterol to liver for destruction, “good” cholesterol, removes LDL

Question 24

Major Diseases of the Circulatory System

Answer 24

hypertension, atherosclerosis, stroke, heart attack

Question 25

Common Risk Factors for Cardiovascular Disease

Answer 25

high blood pressure, high bad cholesterol, overnutrition, excess weight, diabetes, underexercise, smoking, heredity, tension/stress

Question 26

Arteries

Answer 26

carry blood away from the heart

Question 27

Veins

Answer 27

carry blood towards the heart

Question 28

Right Ventricle

Answer 28

pumps blood only to the lungs

Question 29

Left Ventricle

Answer 29

pumps blood to the rest of the body (not the lungs)