Cardiovascular System

Question 1

Function of erythrocytes

Answer 1

To transport oxygen + carbon dioxide within the body. They are small and flexible allowing, to get into narrow blood vessels/capillaries

Question 2

Haemoglobin

Answer 2

A red protein responsible for transporting oxygen in the blood

Question 3

Platelets

Answer 3

Produced in the bone marrow and are fragments of larger cells - they help to form scabs

Question 4

Plasma

Answer 4

Carries platelets, red+ whiter blood cells and proteins

Question 5

Monocytes

Answer 5

Largest of the white blood cells

Question 6

Neutrophils

Answer 6

One of the first cell types to travel to the site of infection- another type of white blood cells

Question 7

Leucocytes- White Blood Cells

Answer 7

Part of the body’s immune system, they defend the body against infection

Question 8

Lymphocytes

B-cells and T-cells

Answer 8

B-cells - Develop in the bone marrow

T-cells - Develop in the thymus gland

Question 9

Pulmonary Vein

Answer 9

Carries oxygenated blood from the lungs to the left of the atrium

Question 10

Vena Cava

Answer 10

The superior vena cava is one of the largest veins in the body

Question 11

Pulomary Artery

Answer 11

Carries deoxygenated blood from the heart to the lungs

Question 12

Aorta

Answer 12

The main artery of the body ; it leaves the heart from the left ventricle

Question 13

Function of Plasma

Answer 13

• Provides a means of transport for glucose, lipids, amino acids, hormones, dissolved food molecules, carbon dioxide and oxygen
• Carries proteins which helps blood clotting
• Helps with temperature regulation of the body

Question 14

Function of Platelets

Answer 14

Helps to form blood clots by clumping together, to slow or stop bleeding and to help wounds heal

Question 15

Function of monocytes

Answer 15

Part of the immune system, formed in the bone marrow , released into the blood and tissue

Question 16

Function of Neutrophils

Answer 16

Protect the body against bacterial infection

Question 17

Function of lymphocytes

T-cells + B-cells

Answer 17

T-cells - Destroys the body’s own cells that have become cancerous
B-cells - Produce antibodies to destroy antigens such as bacteria, viruses and toxins

Question 18

Erythrocytes- Red Blood Cells

Answer 18

Are made in the bone marrow and are red because of haemoglobin

Question 19

Function of Leucocytes

Answer 19

Cells that have a role in defence and immunity. Detect abnormal material and destroy it

Question 20

Arteries

Answer 20

Carry blood away from the heart. Their walls consist of several layers of thick, elastic fibres and muscle

Question 21

Venis

Answer 21

Large internal diameters and thinner walls than arteries. Carry de-oxygenated blood back to the lungs

Question 22

Capillaries

Answer 22

• The smallest blood vessels and have walls made of a single layer of cells
• Allow the exchange of water, oxygen,CO2, nutrients + waste between blood and the surrounding tissues.