Physical Education 2.2.2

?
  • Created by: Hannah
  • Created on: 10-05-13 20:06
What are the three main parts of the cardiovascular system?
The heart, blood and the blood vessels
1 of 28
What are the two main types of blood vessels?
Arteries and veins
2 of 28
What is the main purpose of the cardiovascular system?
To transport oxygen and nutrients around the body
3 of 28
What does an artery do?
Carries blood at high pressure away from the heart
4 of 28
What does a vein do?
Carries blood to the heart at low pressure
5 of 28
What does a capillary do?
Carries blood to and from the body's cells
6 of 28
When blood is flowing against gravity or when a vein is squeezed by muscle action there is a risk that the blood will flow in the wrong direction, what feature of the veins prevent this backflow of blood?
Valves
7 of 28
How many chambers does the heart have?
4
8 of 28
What are the four chambers of the heart called?
Atrium (left and right), ventricles (left and right)
9 of 28
What is the definition of heart rate?
The number of times your heart beats per minute
10 of 28
What is the definition of stroke volume?
The amount of blood pumped out of the left ventricle per beat
11 of 28
What is the definition of cardiac output?
The amount of blood pumped out of the left ventricle per minute
12 of 28
How can cardiac output be calculated?
STROKE VOLUME X HEART RATE
13 of 28
What effect does regular exercise exercise have on the arteries and blood pressure?
The arteries become stretchiers therefore blood pressure decreases
14 of 28
What effect does regular exercise have on the heart?
Hypertrophy
15 of 28
Do stroke volume and cardiac output increase or decrease because of regular exercise?
Increase
16 of 28
What two factors affect the pressure of blood travelling through vessels?
The speed the blood is travelling through the vessel and the width of the vessel itself
17 of 28
At what pressure does blood travel through arteries?
High
18 of 28
At what pressure does blood travel through veins?
Low
19 of 28
At what pressure does blood travel through capillaries?
Medium
20 of 28
What 5 factors can affect blood pressure?
Age, gender, stress, diet and exercise
21 of 28
What is vasodilation?
When the body gets too hot, capillaries near the surface of the skin widen and blood is diverted to the skin so that heat can escape
22 of 28
What is vasoconstriction?
When the body gets too cold, capillaries near the surface of the skin get narrower and blood is diverted away from the skin to limit heat loss
23 of 28
What is blood doping?
The process in which blood is removed from the body so that the body produces more to make up for it. The red blood cells are separated out and stored. The blood is injected back into the body before performing giving them a high red blood cell count
24 of 28
What side effects does blood doping cause?
Bloody doping can lead to blood clots and all the heart problems associated with high blood pressure
25 of 28
What is blood pooling?
When blood flows in the wrong direction because the valves don't close properly
26 of 28
What is systolic pressure?
The blood pressure in the arteries when the ventricles contract. This is when your blood pressure is at its highest
27 of 28
What is diastolic pressure?
The blood pressure in the arteries when the ventricles relax. This is when your blood pressure is at its lowest
28 of 28

Other cards in this set

Card 2

Front

What are the two main types of blood vessels?

Back

Arteries and veins

Card 3

Front

What is the main purpose of the cardiovascular system?

Back

Preview of the front of card 3

Card 4

Front

What does an artery do?

Back

Preview of the front of card 4

Card 5

Front

What does a vein do?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Physical Education resources:

See all Physical Education resources »