Blood And Circulation

Question 1

What is the fluid of the transport system

Answer 1

Blood

Question 2

What oran is responsible for pumping this fluid

Answer 2

The heart

Question 3

3 types of vessel that carry this fluid to all parts of the body

Answer 3

Vein, capillary, artery

Question 4

6 things the circularly system are responsible for transporting

Answer 4

Oxygen from the lungs - everywhere
Carbon dioxide from everywhere - the lungs
Digested food(glucose, amino acids) from small intestine - everywhere
Waste from liver - kidney
Heat from liver and muscles - everywhere
Hormones to communicate` between cells

Question 5

4 stages of a Double circulation

Answer 5

Deoxygenated Blood enters the heart
pumped to the lungs to get oxygen.
Blood is now oxygenated and travels back to the heart.
Blood is then pumped around the body so every cell gets its vital oxygen so that every cell can carry out the process of respiration.”

Question 6

What is respiration

Answer 6

The reaction that provides energy to every cell in your body

Question 7

What is pulmonary circulation

Answer 7

Blood flow that goes glom the heart to the lungs and back (right side of the heart)v

Question 8

What is systemic circulation

Answer 8

Blood flow from the heart to the rest of the body (left side of the heart)

Question 9

What does the aorta do

Answer 9

Carries oxygen away from the heart

Question 10

What does the vena cava do

Answer 10

Returns blood to the heart from the rest of the body

Question 11

What does the hepatic portal vein do

Answer 11

Carries blood form the intestine to the liver

Question 12

What does the pulmonary artery do

Answer 12

Carries blood to the lungs

Question 13

What does the renal artery do

Answer 13

Carries blood to the kidneys

Question 14

3 things about an artery

Answer 14

• thick walls
• small lumen
• thick layer of muscle and elastic fibres

Question 15

3 things About a vein

Answer 15

• relatively thin walls
• often have valves
• large lumen

Question 16

2 things about a capillary

Answer 16

• walls a single cell thick

- very tiny vessel with narrow lumen

Question 17

What do arteries do

Answer 17

Carry blood away from the heart

Question 18

What do veins do

Answer 18

Carry blood back to the heart

Question 19

What do capillaries do

Answer 19

Allow substances to exchange at body cells e.g. food and oxygen

Question 20

What is blood pressure

Answer 20

The pressure of blood being pumped round the body

Question 21

3 treatments for high blood pressure

Answer 21

Exercise, diet and medication

Question 22

When is your blood pressure lowest

Answer 22

When you are sleeping

Question 23

What is your blood made up of (4)

Answer 23

• red blood cells
• white blood cells
• platelets
• plasma

Question 24

What do red blood cells do

Answer 24

Carry oxygen around the body

Question 25

What do platelets do

Answer 25

These are what cos you to form a scab or clot

Question 26

What do white blood cells do

Answer 26

Part of your immune system and attack bacteria and viruses

Question 27

What is plasma

Answer 27

Liquid part that contains water carbon dioxide and urea

Question 28

4 things About red blood cells

Answer 28

• very small and have no nucleus
• biconcave in shape, large surface area
• contain iron pigment, haemoglobin which picks up
• When oxygen combines with haemoglobin it forms oxyhemoglobin which is red

Question 29

4 things about white blood cells

Answer 29

• slightly larger than re blood cells
• protect the body
• able to detect bacteria and destroy them before they harm the body
• phagocytosis is when they engulf the bacteria to destroy them

Question 30

4 things about platelets

Answer 30

• tiny cell fragments
• carried in the blood
• when exposed to air help form fibres at the cut called a clot
• makes scabs which keep the wound clean while skin grows