Unit 3: Transportation Systems: Circulatory System

Question 1

what are the functions of the circulatory system

Answer 1

1. transports nutrients and waste
2. transports heat
3. transports O2 to body cells and Co2 away from body cells
4. transports hormones
5. transports antibodies

Question 2

is a hollow organ about the size of a closed fist and is located between the lungs, behind the sternum, and above the diaphragm

Answer 2

heart

Question 3

what is the function of the heart

Answer 3

pump blood throughout the body

Question 4

what are the four chambers of the heart

Answer 4

right atrium, right ventricle, left atrium, and left ventricle

Question 5

receives unoxygenated blood from the veins

Answer 5

right atrium

Question 6

receives blood from the right atrium and pumps it to the lungs

Answer 6

right ventricle

Question 7

receives OXYGENATED blood from the lungs and pumps it to the left ventricle

Answer 7

left atrium

Question 8

pumps blood into the aorta, which will then transport the blood throughout the entire body

Answer 8

left ventricle

Question 9

what are major vessels of the heart

Answer 9

aorta, superior vena cava, inferior vena cava, pulmonary arteries and veins

Question 10

what are the four valves of the heart

Answer 10

tricuspid, pulmonary semilunar valve, mitral (bicuspid valve), and aortic semilunar valve

Question 11

how does the circulatory system work in transportation of nutrients

Answer 11

arteries pick up nutrients from the digestive system and delivery to cells of the body
veins carry away waste products and excess fluid of the cells of the body

Question 12

how does the circulatory system work in transporting heat

Answer 12

regulates heat by distributing the heat generated by muscles

Question 13

how does the circulatory system work in transportation of O2 to body cells and Co2 away from body cells

Answer 13

arteries carry oxygen to the body cells

veins take carbon dioxide away from body cells

Question 14

how does the circulatory system work in transportation of hormones

Answer 14

transports them through the blood stream

Question 15

how does the circulatory system work in transportation of antibodies

Answer 15

transports them through the blood stream to help fight infection

Question 16

What is the order of blood flow from the human body back through the heart

Answer 16

SVC & IVC, right atrium, tricuspid valve, right ventricle, pulmonary semilunar valve, pulmonary trunk, pulmonary arteries, lungs, pulmonary veins, left atrium, bicuspid (mitral) valve, left ventricle, aortic semilunar valve, aorta, to the body, repeat cycle.

Question 17

form a closed system for the flow of blood.

Answer 17

blood vessels

Question 18

what are three three main types of blood vessels

Answer 18

arteries, capillaries, veins

Question 19

carry blood AWAY from the heart.

Answer 19

arteries

Question 20

largest artery in the body

Answer 20

aorta

Question 21

the smallest branch of arteries is called

Answer 21

arterioles

Question 22

connects arterioles with venules. important for nutrient and waste exchange between the blood and cells

Answer 22

capillaries

Question 23

smallest vessels of the circulatory system

Answer 23

capillaries

Question 24

carry blood to the heart

Answer 24

veins

Question 25

what are the four components of blood

Answer 25

red blood cells (erythrocytes) white blood cells (leukocytes) platelets (thrombocytes) plasma

Question 26

transport oxygen and nutrients to the cells, and carry carbon dioxide away from the cells

Answer 26

erythrocytes (RBC)

Question 27

protect against infection and disease

Answer 27

leukocytes (WBC)

Question 28

start the clotting process

Answer 28

platelets (thrombocytes)

Question 29

clear yellow liquid that makes up 55% of the whole blood

Answer 29

plasma

Question 30

internal bleed, vitamin deficiencies, decreases in red blood cell production, or increases in red blood cell production, or increases in red blood cell destruction by the spleen. (Deficiency in blood cells)

Answer 30

anemia

Question 31

occurs when the coronary artery or a branch of the coronary artery is blocked and blood cannot flow to the heart muscle. also called myocardial infarction

Answer 31

heart attack

Question 32

high blood pressure

Answer 32

hypetension

Question 33

a build-up of fatty plaque in the inner arteries of the walls of arteries. causes a narrowing and decreased flow in blood

Answer 33

atherosclerosis

Question 34

narrowing or stricturing of an artery. the loss of elasticity in the artery

Answer 34

arteriosclerosis