circulatory system

Question 1

One of the layers found in arteries which allows them to constrict or dilate to modify blood pressure

Answer 1

Smooth muscle

Question 2

Larger blood vessels which carry blood back to the heart

Answer 2

Veins

Question 3

The main part of the heart (mostly composed of muscle)

Answer 3

Myocardium

Question 4

The chamber of the heart which receives blood from the rest of the body

Answer 4

Right atrium

Question 5

Smaller vessels that carry blood away from the heart

Answer 5

Arterioles

Question 6

The ________ receives blood returning from the lungs

Answer 6

Left atrium

Question 7

Large vessels that carry blood away from the heart

Answer 7

Arteries

Question 8

The sound made by the heart valves during atrial contraction

Answer 8

Lub

Question 9

Oxygenated blood is found on the _____ side of the heart

Answer 9

Left

Question 10

Contractions in these muscles helps to push blood through the veins and back to the heart

Answer 10

Skeletal

Question 11

The _____ node receives a signal from the SA node and initiates ventricular contraction

Answer 11

AV

Question 12

The heart is able to beat without the control of the brain - therefore, heartbeat is said to be ______

Answer 12

Intrinsic

Question 13

Relaxation of the heart muscle - lowest arterial blood pressure

Answer 13

Diastole

Question 14

The largest artery in the body

Answer 14

Aorta

Question 15

A membrane which surrounds the heart

Answer 15

Pericardium

Question 16

Smaller blood vessels which carry blood back to the heart

Answer 16

Venules

Question 17

The pulmonary arteries carry blood to the ______

Answer 17

Lungs

Question 18

_______ circulation occurs on the right side of the heart

Answer 18

Pulmonary

Question 19

The hepatic ______ vein takes blood from the small intestines to the liver

Answer 19

Portal

Question 20

The ______ vena cava returns blood from the parts of the body that are below the heart

Answer 20

Inferior

Question 21

The percentage of blood in the arteries at any one time

Answer 21

20%

Question 22

The most muscular of the heart chambers

Answer 22

Left ventricle

Question 23

The ______ arteries and veins take blood to and from the kidneys

Answer 23

Renal

Question 24

The right ______ valve separates the right atrium and ventricle

Answer 24

Atrioventricular (Tricuspid Valve)

Question 25

_______ circulation occurs on the left side of the heart

Answer 25

Systemic

Question 26

These veins return blood from the head

Answer 26

Jugular

Question 27

The pulmonary ______ valve prevents the back flow of blood as the right ventricle contracts to pump blood to the lungs

Answer 27

Semilunar

Question 28

_______ pressure is created by the presence of salts and plasma proteins found in the blood

Answer 28

Osmotic

Question 29

The ______ artery takes blood from the heart to the small intestine

Answer 29

Mesentery

Question 30

The _____ node is known as the pacemaker, as it initiates the heartbeat

Answer 30

SA

Question 31

The expansion of the blood pressure during systole

Answer 31

Pulse

Question 32

Substances tend to move into the cells on the ________ side of the capillaries

Answer 32

Arterial

Question 33

The number of layers of tissue in arteries

Answer 33

3

Question 34

A device used for measuring blood pressure

Answer 34

Sphygmomanometer

Question 35

_______ is lowest in the venules and veins

Answer 35

Blood pressure

Question 36

The type of muscle found in the heart

Answer 36

Cardiac

Question 37

The ______ arteries carry blood to the head

Answer 37

Carotid

Question 38

Substances tend to move out of the cells and into the blood on the ______ side of the capillaries

Answer 38

Venous

Question 39

Structures in veins which prevent the backflow of blood

Answer 39

Valves

Question 40

Tiny blood vessels which deliver nutrients to individual cells

Answer 40

Capillaries

Question 41

The ______ vena cava returns blood from the parts of the body that are above the heart

Answer 41

Superior

Question 42

Maximum contractions of the ventricles - highest blood pressure

Answer 42

Systole

Question 43

The wall which divides the two sides of the heart

Answer 43

Septum

Question 44

These arteries and veins take blood to and from the arms

Answer 44

Subclavian

Question 45

Another name for the left atrioventricular valve

Answer 45

Bicuspid

Question 46

The _______ arteries take blood to the heart

Answer 46

Coronary

Question 47

______ is affected by stress, oxygen levels, exercise, and blood pressure

Answer 47

Heart rate

Question 48

Total cross sectional area of the blood vessels is highest in the ______ beds

Answer 48

Capillary

Question 49

The _____ fibres carry the electrical signal down to the ventricles to initiate contraction

Answer 49

Purkinje

Question 50

The aorta divides into the _____ arteries in the pelvic region

Answer 50

Iliac

Question 51

These muscles can contract to stop the blood flow to capillary beds in certain areas of the body

Answer 51

Sphincter

Question 52

Capillaries are only ______ cell layer thick in order to allow the most efficient transport of materials across their walls

Answer 52

One

Question 53

The aortic _____ is where blood first leaves the left ventricle

Answer 53

Arch

Question 54

One of the layers found in the arteries which allows them to "stretch" during a pulse

Answer 54

Elastin

Question 55

Capillaries connect the ______ to ________

Answer 55

Arterioles to venules

Question 56

Which muscle do blood vessels contain?

Answer 56

Smooth muscle