BIO TEST #5

Question 1

3 functions of circulatory system

Answer 1

-transport nutrients to cells
-transport oxygen to cells
-removed waste from cells

Question 2

arteries

Answer 2

transport blood away from the heart to the organs and tissues

Question 3

what blood does arteries transport?

Answer 3

oxygenated blood

Question 4

veins

Answer 4

returns blood from the the body back to the heart

Question 5

what blood do veins transport

Answer 5

deoxygenated

Question 6

capillaries

Answer 6

allows materials and gas exchange between the body cells and the blood

Question 7

systemic circulation

Answer 7

blood flow between the heart and the body

Question 8

pulmonary circulation

Answer 8

blood flow between the heart and lungs

Question 9

how is the circulatory system similar to digestive system

Answer 9

transports nutrients from digestive system

Question 10

how is the circulatory system related to the respiratory system

Answer 10

transports the oxygen

Question 11

diastolic pressure

Answer 11

this is when your heart is relaxing, av valves are open, semilunar valves are closed and ventricles fill with blood

Question 12

systolic pressure

Answer 12

this is when your heart is contracting, AV valves are closed, semilunar valves are open, and blood is forced out of the heart into the lungs and body

Question 13

what are the three important blood vessels

Answer 13

arteries, veins, and capillaries

Question 14

what would happen if blood supply to heart muscles were cut off

Answer 14

result is heart attack or stroke

Question 15

why is the heart considered a double pump

Answer 15

Because one side is pumping oxygenated blood out and the other side is pumping deoxygenated blood back to the heart

Question 16

what controls and opening and closing of heart valves

Answer 16

chordae tendoneae

Question 17

what vein carries oxygenated blood in the body

Answer 17

pulmonary veins

Question 18

heart valve disease: cause

Answer 18

heart attack, high blood pressure, and heart failure

Question 19

heart valve disease: symptoms

Answer 19

weight gain, fatigue, and chest discomfort

Question 20

heart valve disease: treatments

Answer 20

medications, surgery, and invasive procedures

Question 21

superior vena cava

Answer 21

-largest vein
- returns deoxygenated blood from upper body

Question 22

inferior vena cava

Answer 22

-largest vein
- returns deoxygenated blood from the lower body to right atrium

Question 23

right atrium

Answer 23

thin walled chamber of heart that receives deoxygenated blood from body

Question 24

tricuspid valve

Answer 24

controls the flow of blood entering the right ventricle from the right atrium

Question 25

right ventricle

Answer 25

muscular chamber that pumps blood to the lungs

Question 26

pulmonary valve

Answer 26

controls the flow of blood out of the heart via the pulmonary arteries to the lungs

Question 27

pulmonary artery

Answer 27

arteries that carry blood to the lungs

Question 28

pulmonary veins

Answer 28

veins that bring bloods to the heart from the lungs

Question 29

left atrium

Answer 29

thin walled chamber that receives oxygenated blood from the lungs

Question 30

mitral valve

Answer 30

a valve that controls the flow of blood from the left atrium to the left ventricle

Question 31

left ventricle

Answer 31

think walled chamber that pumps blood out of the heart and to the body

Question 32

aortic valve

Answer 32

valve that controls the flow of blood out of the heart via the aorta to the whole body

Question 33

aorta

Answer 33

largest artery that carries blood away from the heart and to all parts of the body

Question 34

septum

Answer 34

a wall of muscle that separates the left side of the heart from the right side. keeps deoxygenated and oxygenated blood from mixing

Question 35

myocardium

Answer 35

made up of layers of cardiac muscle

Question 36

where is the heart located

Answer 36

in the middle of your chest, slightly to the left

Question 37

what are the four chambers of the heart

Answer 37

-right atrium -left atrium -right ventricle -left ventricle

Question 38

pericardium

Answer 38

-the double- walled sac around the heart -protects the heart and prevents overfilling of blood

Question 39

why is the flow of blood important

Answer 39

- delivers nutrients -assist in immune response -delivers hormones -closes wounds by blood clotting - temp control

Question 40

what is blood pressure

Answer 40

the force exerted from blood cells against blood vessel walls

Question 41

what is a pulse

Answer 41

a rhythmic throb that can be felt when an artery near the skins surface expands, allowing blood to flow through

Question 42

what is the pulse caused by

Answer 42

contractions of the heart

Question 43

what is the average high school student blood pressure

Answer 43

90-140/60-90

Question 44

what is lubdub

Answer 44

closing of the hearts valves

Question 45

what is a heart murmur

Answer 45

a damaged septum or damaged heart valves

Question 46

what happens if you don’t have an SA node

Answer 46

your heart will contract at different rates

Question 47

cardioaccelerator nerve

Answer 47

nerve in the brain that causes the heart to speed up when needed

Question 48

vagus nerve

Answer 48

nerve in the brain that caused the heart to slow down when needed