Soc-16 The Structure Of Blood Vessles And Blood Distribution

Question 1

What is the cardio respiratory system

Answer 1

The interaction of the heart and lungs to supply oxygen to muscles during exercise

Question 2

Define cardiovascular

Answer 2

To do with the heart, blood and blood vessles together

Question 3

What is Vasodilation

Answer 3

When veins swell up or dilate; widening of the internal diameter (lumen) of the blood vessel to allow increased blood flow

Question 4

What is vasoconstriction

Answer 4

When veins shrink down; narrowing of the internal diameter (lumen) of the blood vessel to decrease blood flow

Question 5

What is the systolic reading on your blood pressure

Answer 5

The first reading usually the highest

Question 6

What is the diastolic number on your blood pressure

Answer 6

The second one, usually smaller

Question 7

What is vascular shunting

Answer 7

A process that increases blood flow to active areas during exercise by diverting blood away from inactive areas; achieved by vasodilation and vasoconstriction

Question 8

What is blood pressure

Answer 8

The pressure of the blood against the walls of the blood vessels, especially the arteries

Question 9

What is the systolic phase of the heart contracting

Answer 9

This is when the chambers of the heart contract after refilling with blood. The blood is pumped from both atria into the ventricles, then the ventricles contract and send deoxegenated blood from the right ventricle to the lungs via the pulmonary veins while oxegenated blood from the left ventricle goes to the aorta

Question 10

What is the diastolic phase

Answer 10

When your heart relaxes to let the chambers fill with blood

Question 11

How do arteries veins and caillaries help during physical activity

Answer 11

During exercise or physical activity the arteries, veins and capillaries work together to supply your muscles with oxygen, they provide oxygenated blood and carry deoxygenated blood away to the heart so it can be oxygenated. This process improves with cardiovascular fitness

Question 12

What is the importance of the artery

Answer 12

A blood vessel that takes blood away from the heart, they have thicker walls, are more elastic and carry blood which is at a higher pressure than veins

Question 13

How is the pulmonary artery different

Answer 13

It carries deoxygenated blood from the heart to the lungs

Question 14

How can arteries help a performer

Answer 14

They carry oxygenated blood from the heart, they can dialate to allow more blood flow

Question 15

What is the importance of a vein

Answer 15

It carries deoxygenated blood to the heart, it has thinner walls, is less elastic and carries blood at a lower pressure than arteries. It can also dispose of CO2

Question 16

How can veins help a performer

Answer 16

They bring deoxygenated blood back to the heart so if can be reoxygenated, it also moves CO2 which prevents the muscles from tiring.

Question 17

What is the importance of capillaries

Answer 17

They are one cell thick and link arteries with veins. They carry venous blood into the veins and pick up waste products so they can be disposed of

Question 18

How can capillaries help a performer

Answer 18

Capilleries are important because they are the points where oxygenated blood is delivered to the muscles, and where deoxygenated blood is taken away from the muscles

Question 19

How do red blood cells help a performer

Answer 19

They carry oxygen which is supplied to the muscles.

Question 20

What is the importance of white blood cells

Answer 20

Blood contains transparent cells called white blood cells. They produce antibodies to fight against infection and disease.

Question 21

How do white blood cells affect a performer

Answer 21

If an athlete has a disease they may not be able to train/perform

Question 22

What are platelets

Answer 22

Tiny fragments that form in the bone marrow that clump together to help blood clot and stop bleeding