Circulatory System

Question 1

Components of blood vessels - 3

Answer 1

Arteries
Veins
Capillaries

Question 2

Function of blood vessel

Answer 2

Carries blood to all parts of the body and is also know as the vascular system

Question 3

Function of arteries

Answer 3

Blood vessels that carry blood away from the heart - thick elastic walls

Question 4

Function of veins

Answer 4

Blood vessels that return blood to the heart

Question 5

Function of capillaries

Answer 5

Smallest blood vessel and are the site exchange of nutrients and wastes between the blood and the body cells,

Question 6

Where can you measure your pulse

Answer 6

The neck

The wrist

Question 7

Explain pulse

Answer 7

The volume of blood being pumped around you arteries. As arteries have elastic walls they are able to expand with each heart beat.

Question 8

What is blood made of - 5

Answer 8

Red blood cells 
White blood cells
Platelets 
Plasma 
Haemoglobin

Question 9

Function of WBC

Answer 9

Fights diseases causing organisms by absorbing and digesting them

Question 10

Function of platelets

Answer 10

Cells which causes blood to clot when blood vessels are damaged

Question 11

Function of plasma

Answer 11

A fluid found in blood that transports red and white blood cells, nutrients and waste

Question 12

Function of haemoglobin

Answer 12

Substance in the blood that transports oxygen to the body cells

Question 13

Define systemic circulation

Answer 13

Where blood from the heart is circulated into the arteries, around the body and back to the heart

Question 14

Define pulmonary circulation

Answer 14

Where blood from the heart is circulated to the lungs and back to the heart

Question 15

Steps of how blood is circulated throughout the body - 9

Answer 15

1. Right atrium receives blood (low in oxygen, high in carbon dioxide)
2. Right ventricle receives blood from right atrium, then blood is pumped to the lungs
3. While in lungs the blood gives up carbon dioxide and takes up oxygen
4. Oxygenated blood is returned to the left atrium
5. Blood enters left ventricle and is pumped through the aorta and into the arteries
6. Blood flows to all extremities of the body
7. Blood enters capillaries, oxygen and nutrients are given to cells, carbon dioxide and wastes are removed from cells
8. Capillaries carry blood to vein
9. Veins return blood to right atrium

Question 16

What is blood pressure

Answer 16

Measure of how much force is created to push the blood through the blood vessels

Question 17

What is systolic blood pressure

Answer 17

The pressure of blood I the arteries as the left ventricle as the contracts

Question 18

What is diastolic blood pressure

Answer 18

The pressure on blood in the arteries as the heart relaxes.

Question 19

Short term effects of exercise - 4

Answer 19

• increased heart rate
• increased cardiac output
• blood pressure increase
• increase in lactic acid

Question 20

Long term effects of exercise - 5

Answer 20

• hypertrophy of the heart
• stroke volume at rest increases as fitness increases
• resting heart rate decreases
  Increased volume of blood and increased amount of haemoglobin
• increased number of capillaries supplying muscles
• increased supply of blood to the heart muscle

Question 21

Cardiac output

Answer 21

Volume of blood pumped around the body in one minute. Cardiac output is measured by stroke volume times heart rate.

Question 22

Diagram of the heart

Answer 22

• pulmonary artery
• pulmonary vein
• left atrium
• bicuspid valve
• septum
• left ventricle
• right ventricle
• inferior vena cava
• tricuspid valve
• right atrium
• superior vena cava