science heart vessels and veins etc

Question 1

the functions of the blood are

Answer 1

transport
defence against disease
Homeostasis - Keep body temperature constant​

Question 2

plasma

Answer 2

Liquid part of blood, transports substance and heat

Question 3

aorta

Answer 3

​

Aorta – Largest blood vessel – Transports oxygenated blood away form the heart to the body.​ –
major artery in the heart. branches out into a series of smaller arteries that deliver oxygenated blood and dissolved nutrients to all cells of the body

Question 3

rbc (red blood cells)

Answer 3

transport oxygen (haemoglobin)

Question 3

wbc (white blood cells)

Answer 3

produce antibodies to fight disease

Question 4

platelets

Answer 4

clot the blood

Question 4

Bicuspid Valve –

Answer 4

Opens to allow deoxygenated blood to enter the left ventricle from the right ventricle. It has two flaps.​

Question 4

veins

Answer 4

carry blood into the heart
have thinner walls than arteries. blood pressure in veins is lower than in arteries so veins also have valves to prevent the backflow of blood.

Question 4

vena cava

Answer 4

Vena Cava – Transports carbon dioxide- rich (deoxygenated) blood from the body to the heart.

Question 5

pulmonary vein

Answer 5

The vessel that brings
oxygenated blood from the
lungs to the heart to be
pumped around the body

Question 5

arteries

Answer 5

carry blood away from the heart
have thick walls to withstand the high pressure of blood pumped out of the heart
oxygen-rich blood

Question 5

right ventricle

Answer 5

Chamber of the
heart that pumps
blood to the lungs

Question 5

pulmonary artery

Answer 5

Pulmonary Artery – Transports deoxygenated blood away from the heart to the lungs.

Question 5

left ventricle

Answer 5

Chamber of the
heart that pumps
blood all around the
body

Question 5

capillaries

Answer 5

tiny blood vessels that link arteries and veins. there is a huge network of capillaries throughout the body.
walls are very thin so molecules can easily pass in and out of surrounding cells. the molecules exchanged include oxygen, carbon dioxide, glucose, waste and hormones

Question 5

right atrium

Answer 5

Chamber of the heart
that the vena cava
brings deoxygenated
blood to

Question 5

semi-lunar valves

Answer 5

Open to allow blood to leave the heart from the ventricles. found inside your heart, stop blood flowing back into your heart

Question 5

septum

Answer 5

separates the left and right side of the heart. prevents blood from mixing in the heart.

Question 5

four chambers of the heart

Answer 5

two atria two ventricles. the ventricles are larger than the atria.

Question 5

valves

Answer 5

valves are flaps of tissue which prevents blood from flowing backwards

Question 5

plasma

Answer 5

The liquid part
of blood

Question 6

left atrium

Answer 6

Chamber of the heart
that the pulmonary
vein brings
oxygenated blood to

Question 6

circulatory system

Answer 6

Transports nutrients,
gases and hormones
to cells and removes
waste products

Question 6

cardiac muscle

Answer 6

Muscle which makes
up the heart - which
does not tire

Question 6

Coronary arteries and veins

Answer 6

Blood vessels which function in supplying the heart muscle with blood

Question 7

Heartbeat

Answer 7

The contraction and relaxation of the heart

Question 8

Pulse

Answer 8

When the heart beats, blood is pumped through the arteries causing them to expand and contract. This can be felt when the arteries are close to the skin in the neck or wrist. This is called a pulse. The pulse rate is the same as the heart rate.

Question 9

where in your body are rbc and wbc produced

Answer 9

bone marrow