Circulatory System

Question 1

Inferior Vena Cava

Answer 1

Returns blood from the lower body

Question 2

Superior Vena Cava

Answer 2

Returns blood from the upper body

Question 3

Right Atrium

Answer 3

Thin walled chamber that receives deoxygenated blood from the body

Question 4

Tricuspid Valve

Answer 4

Controls the flow of blood from the right atrium to the right ventricle
(R.A —> R.V)

Question 5

Right Ventricle

Answer 5

Muscular chamber that pumps blood to the lungs

Question 6

Pulmonary Valve

Answer 6

controls the flow of blood out to the lungs

(P.A <— Lungs)

Question 7

Pulmonary Artery

Answer 7

Carries blood to the lungs

Question 8

Pulmonary veins

Answer 8

blood flows into the heart from the lungs

Question 9

Left Atrium

Answer 9

Thin walled chamber that receives oxygenated blood from the lungs

Question 10

Mitral Valve

Answer 10

controls the flow of blood from the left atrium to the left ventricle
(L.A—>L.V)

Question 11

Left ventricle

Answer 11

Muscular chamber that pumps blood to the body

Question 12

Aortic valve

Answer 12

controls the flow of blood out of the aorta to the whole body

Question 13

Aorta

Answer 13

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

Question 14

Septum

Answer 14

Wall of muscle that separates the left side of the heart from the right side
(Prevents mixing of oxygenated and deoxygenated blood)

Question 15

Myocardium

Answer 15

Made up of layers of cardiac muscle
(Contracts by itself)

Question 16

Oxygenated parts of the heart (6)

Answer 16

Aorta
Left atrium
Pulmonary vein
Left ventricle
Mitral valve
Aortic valve

Question 17

Deoxygenated parts of the heart (7)

Answer 17

Superior vena cava
Pulmonary artery
Right atrium
Right ventricle
Pulmonary valve
Tricuspid valve
Inferior vena cava

Question 18

Diastolic pressure

Answer 18

-heart is relaxed
-A.V valves open
-semilunar valves close
-lowest blood pressure

Question 19

Systolic pressure

Answer 19

-heart is contracted
-A.V valves close
-semilunar valves open
-highest blood pressure

Question 20

Arteries

Answer 20

-carries blood from the heart
-transports oxygenated blood except pulmonary artery

Question 21

Veins

Answer 21

-carries blood back towards the heart
-transports deoxygenated blood except pulmonary vein

Question 22

Capillaries

Answer 22

-Allows material gas exchange between the body cells and the blood
-Connect arteriales and venules
-Pass through in a single file line
-Thin walled and narrow

Question 23

How is the circulatory system related to the digestive system and respiratory system

Answer 23

-Transports nutrients from digestive system
-Transports oxygen from respiratory system

Question 24

3 blood vessels that supply oxygen to the heart muscles

Answer 24

Arteries
Veins
Capillaries

Question 25

What would happen if blood supply to the heart muscles cut off?

Answer 25

You would develop a heart attack or stroke

Question 26

Why is the heart considered a double pump?

Answer 26

First pump carries deoxygenated blood to your lungs, it then delivers oxygenated blood to the heart

Question 27

Chordae tendoneae

Answer 27

controls the opening and closing of the heart valves

Question 28

Differences between arteries and veins

Answer 28

Arteries -thick elastic wall -oxygenated blood -does NOT contain valves Veins -thin wall, slightly elastic -deoxygenated blood -contains valves

Question 29

Blood pressure

Answer 29

Force exerted from blood cells against blood vessel walls

Question 30

Heart (role of the circulatory system)

Answer 30

-Pumps blood through the body -hollow organ made up of cardiac muscle

Question 31

Transports of these materials are carried out by

Answer 31

-heart -blood vessels -blood

Question 32

How many chambers does the heart have?

Answer 32

4

Question 33

Pulse

Answer 33

-A Rhythmic throb that occurs when an artery near the skins surface expands, (blood is flowing through) -Caused by contractions

Question 34

Heart murmur

Answer 34

Damaged septum or heart valves

Question 35

Normal average blood pressure for an adult

Answer 35

120/80

Question 36

Why does the heart and veins contain valves?

Answer 36

To help the return of blood to the heart

Question 37

His-Purkije Fibers

Answer 37

Cause ventricles of the heart to contract

Question 38

Atrioventricular node

Answer 38

Receives electrical impulse

Question 39

Sinoatrial Node

Answer 39

Sends an electrical impulse to the heart

Question 40

Coronary arteries

Answer 40

supply blood to the heart muscle

Question 41

Portal vein circulates blood through the?

Answer 41

liver

Question 42

Renal vein circulate blood through the

Answer 42

kidneys

Question 43

Pulmonary veins circulates blood through the

Answer 43

lungs