Circulatory Anatomy

Question 1

What direction of blood does arteries go to

Answer 1

Away from the heart

Question 2

Direction of blood for capillaries

Answer 2

From arteries to veins

Question 3

What kind of blood does arteries carry

Answer 3

Carry oxygenated blood (exception of pulmonary arteries)

Question 4

What kind of blood do veins carry

Answer 4

Carry deoxygenated blood (exception of pulmonary veins)

Question 5

What kind of blood do capillaries carry

Answer 5

Changes from oxygenated to deoxygenated

Question 6

What blood vessel has the presence of valves

Answer 6

Veins

Question 7

What do veins have valves

Answer 7

Because they are one-way preventing blood from flowing backwards

Question 8

What is the vessel wall thickness of arteries

Answer 8

Thick, muscular, and flexible

Question 9

What is the vessel wall thickness of veins

Answer 9

Thinner muscle layer and not as flexible

Question 10

What is the vessel wall thickness of capillaries

Answer 10

One cell layer thick

Question 11

Overall function of arteries

Answer 11

Carry out blood from the heart to the cells of the body

Question 12

Overall function of veins

Answer 12

Carry blood back to the heart so that it can be delivered to the lungs

Question 13

Overall function of capillaries

Answer 13

Delivers 02, nutrients to the body. Also removes waste C02 from the body (gas exchange)

Question 14

How can you tell how large or small a vessel is

Answer 14

Closest to the heart (biggest)
Further away from the heart (smallest)

Question 15

Names of arteries biggest to smallest

Answer 15

Aorta - Artery - Arteriole

Question 16

Names of veins biggest to smallest

Answer 16

Vena Cava - Veins - Venules

Question 17

What do capillaries form

Answer 17

Form a net or bed (capillary bed/net)

Question 18

Direction of blood flow through vessels (closed circulatory system)

Answer 18

Heart - Aorta - Artery - Arteriole - Capillary bed - Venules - Veins - Vena Cava - Heart

Question 19

Explain what the outer layer of the blood vessel is made of and what is the purpose

Answer 19

1. Mixture of connective and elastic tissues
2. Interacts with other tissues

Question 20

Explain what the middle layer of the blood vessel is made of

Answer 20

Circular bands of elastic and smooth muscle tissue

Question 21

Why is it important that arteries are thick

Answer 21

Thickness in arteries helps with pressure from the heart.
It can get tighter or expand.

Question 22

Explain what the inner layer of the blood vessel is made of and what is the purpose

Answer 22

1. Only one cell layer thick and made up of smooth cells
2. Smooth cells help reduce friction and increases blood movement

Question 23

What vessel is only one cell layer thick

Answer 23

Capillaries

Question 24

What percent of blood is in the pulmonary circuit

Answer 24

10 -20 percent

Question 25

What percent of blood is in the systematic circuit

Answer 25

80 -90 percent

Question 26

What happens in the pulmonary circuit

Answer 26

Blood is headed to the lungs is deoxygenated (CO2), gas exchange then occurs @ lungs. Blood rich in oxygen then goes back to the heart (heart - pulmonary arteries - lungs (capillary bed) - pulmonary veins- heart)

Question 27

What happens in the systematic circuit

Answer 27

Takes oxygenated blood to the heart to the rest of the body . After circulating through, blood will return to the heart as deoxygenated (heart -aorta - body (capillary bed) - vena cava- heart)

Question 28

What are the 4 valves

Answer 28

1. Tricuspid valve
2. Pulmonary valve
3. Aortic valve
4. Mitral valve