Blood Vessels

Question 1

Veins

Answer 1

One of three blood vessels
Veins have thinner less muscular walls and bigger lumen
Low pressure blood (no pulse)
Contain one way valve to prevent backflow
Carry blood toward the heart
Most carry deoxygenated blood
But not pulmonary veins

Question 2

Arteries

Answer 2

One of three blood vessels
Have thicker muscular and elastic walls
Which allows for stretching and accommodating rush of high blood pressure ( pulse )
Lumen is smaller
Carry oxygenated blood except pulmonary artery

Question 3

Coronary

Answer 3

One of three types of blood flow
Carries blood to and from the heart itself

Question 4

Systemic

Answer 4

One of three types of blood flow
Carries blood to and from the rest of the body

Question 5

Blood vessels

Answer 5

One of three major components of the circulatory system
Are the roadways through which blood flows there are three types of of blood vessels

Question 6

Heart

Answer 6

One of three major components of the circulatory system
organ which pushes blood through the body with its pumping action

Question 7

Valves

Answer 7

Valves are like small gates that open and close when needed they are meant to prevent back flow ( blood travelling in the wrong direction) as of right now we know of valves in the veins

Question 8

Lumen

Answer 8

Lumen refers to the hollow centre of blood vessels the lumen size varies between the three blood vessels

Question 9

Capillaries

Answer 9

One of three types of blood vessels
This is the smallest blood vessel being one cell thick
Are usually organized in a network
Where gas and fluid exchange between the blood and the cells of the body

Question 10

Vasodilation

Answer 10

When and arteries and their walls dialate to make the diameter larger to accommodate more blood

Question 11

Vasoconstriction

Answer 11

When a artery wall contracts to make it’s diameter smaller to restrict blood flow

Question 12

Pulmonary vein

Answer 12

This vein is the only vein that contains oxygen rich blood because the collect blood from the lungs and bring it to the heart

Question 13

Pulmonary artery

Answer 13

This artery is the only artery that carries deoxygenated blood because it pumps the deoxygenated blood from the heart to the lungs to get oxygenated

Question 14

Transportation

Answer 14

One of three main functions of the circulatory system
Transports nutrients, wastes, hormones, gases and many other things are transported around the body via blood

Question 15

Regulation

Answer 15

One of three main functions of the circulatory system
Helps regulate body temperatures and water balance stay homeostasis

Question 16

Protection

Answer 16

One of three main functions of circulatory system
Transports white blood cells and platelets to site of injury and infection

Question 17

Complex vs simple

Answer 17

In single celled organisms one need diffusion and active transport

In multicellular they use a system of tubes to connect to all cells on the body too complex for just diffusion

Question 18

Blood

Answer 18

One of three major components of the circulatory system
Serves as a transport medium for materials

Question 19

Artioles

Answer 19

Smaller branches of arteries leading into capillaries