Circulatory System

Question 1

Functions of the Circulatory System

Answer 1

transport oxygen, nutrients, hormones, remove wastes from tissues, regulate body temperature, and fight against infections

Question 2

Major parts of the circulatory system

Answer 2

blood, blood vessels, heart

Question 3

What are the main structures that make up blood?

Answer 3

plasma, red blood cells, white blood cells, and platelets

Question 4

Plasma function

Answer 4

control body temperature
(water in plasma helps this)

Question 5

Red blood cell function

Answer 5

transport oxygen

Question 6

White blood cell function

Answer 6

fight against bacteria, diseases, viruses, and guard against infections

Question 7

Platelets function

Answer 7

blood clotting

Question 8

Plasma makes up what percentage of total blood volume?

Answer 8

55%

Question 9

What do red blood cells look like?

Answer 9

disks that are thinner in the center than edges

Question 10

What do white blood cells look like?

Answer 10

gold orbs, larger than red blood cells

Question 11

What do platelets look like?

Answer 11

small, pink fragments that come from bone marrow cells

Question 12

Function of blood

Answer 12

transports oxygen, fight diseases/infections, and clot blood

Question 13

Plasma is 90% what and 10% what?

Answer 13

90% water and 10% plasma proteins

Question 14

blood vessels

Answer 14

passages that the blood flows through

Question 15

Are veins and arteries organs?

Answer 15

Yes because they are made up of different types of tissue

Question 16

arteries

Answer 16

blood vessel that bring blood away from the heart

Question 17

structure of arteries

Answer 17

large vessels with thick elastic walls made up of connective tissue, smooth muscle, and endothelium

Question 18

veins

Answer 18

blood vessels that carry deoxygenated air from capillaries toward the heart

Question 19

structure of veins

Answer 19

smaller than artery but bigger than capillaries, contains valves

Question 20

capillaries

Answer 20

blood vessels that allow for the exchange of nutrients and wastes

Question 21

structure of capillaries

Answer 21

smallest blood vessel, extremely thin walls that only allow one blood cell at a time

Question 22

Are capillaries organs?

Answer 22

No because they are made up of one type of tissue (epithelial)

Question 23

aorta

Answer 23

an artery that brings blood from the left ventricle to the capillaries in the rest of the body

Question 24

superior vena cava

Answer 24

vein that brings deoxygenated blood from the smaller veins (and capillaries) from the top part of the body toward the right atrium

Question 25

inferior vena cava

Answer 25

vein that brings deoxygenated blood from the smaller veins (and capillaries) from the bottom part of the body toward the right atrium

Question 26

What are the three blood vessels?

Answer 26

arteries, capillaries, and veins

Question 27

connective tissue

Answer 27

the outer covering/layer

Question 28

epithelial tissue

Answer 28

inner lining

Question 29

Why do capillaries have thin epithelial tissue?

Answer 29

to exchange substances

Question 30

Veins use what to help blood flow/movement?

Answer 30

skeletal muscles

Question 31

What blood vessel is under high pressure?

Answer 31

artery because it is around thick muscle and closer to the heart and has to pump a lot

Question 32

What blood vessel is under low pressure?

Answer 32

vein because it is thin muscle and further from the heart

Question 33

The 4 chambers of the human heart are?

Answer 33

right atrium, right ventricle, left atrium, left ventricle

Question 34

Structure of the heart organ

Answer 34

connective tissue myocardium two layers of epithelial tissue

Question 35

septum

Answer 35

the wall that separates the right side from left side (and separates oxygen-rich blood from oxygen-poor)

Question 36

valves

Answer 36

flaps of connective tissue that keeps the blood moving in one direction and prevents blood from flowing back

Question 37

Where are valves present in?

Answer 37

heart and veins

Question 38

Pulmonary Circuit

Answer 38

carries deoxygenated blood from heart to lungs and oxygenated blood from the lungs back to the heart.

Question 39

Systemic Circuit

Answer 39

carries oxygenated blood from the heart to the cells of the body and deoxygenated blood from the cells back to the heart.

Question 40

Trace the locations of blood starting from the right atrium

Answer 40

right atrium, right ventricle, pulmonary artery, capillaries (lungs), pulmonary vein, left atrium, left ventricle, aorta, arteries, capillaries (brain), veins, superior vena cava, right atrium

Question 41

Which side of the heart is oxygenated?

Answer 41

left

Question 42

Which side of the heart is deoxygenated?

Answer 42

right

Question 43

LORD

Answer 43

Left Oxygenated Right Deoxygenated

Question 44

How is gas from the circulatory system exchanged with the respiratory system?

Answer 44

blood that is in the capillaries of the lungs has carbon dioxide diffusing out and the oxygen being absorbed by blood (lungs take in oxygen and excretes carbon dioxide when exhaling)

Question 45

What is the only blood cell that has a nucleus?

Answer 45

white blood cells

Question 46

Do red blood cells have a nucleus?

Answer 46

no

Question 47

Where are all the blood components produced from?

Answer 47

red bone marrow

Question 48

Where is blood oxygenated?

Answer 48

capillaries in lungs