4.2.2.2 the heart and blood vessels

Question 1

What is the heart

Answer 1

It is an organ that pumps blood around the body in a double circulatory system

Question 2

What are the three different type of blood vessel within the body

Answer 2

Arteries, capillaries, veins

Question 3

What do capillaries transport

Answer 3

Blood, nutrients, and oxygen

Question 4

What do veins transport

Answer 4

Deoxygenated blood from all body parts to the heart.

Question 5

What does the right ventricle do

Answer 5

Pumps blood to the lungs

Question 6

What does the left ventricle do

Answer 6

Pumps blood around the body

Question 7

What is the vena cava

Answer 7

A vein that travels from the body parts to the heart, this carries deoxygenated blood

Question 8

What is the aorta

Answer 8

Artery pumps blood from the heart around the body, carries oxygenated blood

Question 9

What is the pulmonary vein

Answer 9

A vein that travels from the lungs to the heart. Carries oxygenated blood

Question 10

What is the pulmonary artery

Answer 10

A artery that travels from the heart to the lungs. Carries deoxygenated blood

Question 11

Explain gas exchange within the lungs

Answer 11

Bronchioles —-> alveolus
Oxygen and carbon dioxide are exchanged in alveoli at the end of bronchial tubes. Alveoli are surrounded by capillaries.

Question 12

Do veins visit or go away

Answer 12

They visit the heart

Question 13

Do arteries visit or go away

Answer 13

They transport nutrients and oxygen away from the heart

Question 14

What do capillaries do?

Answer 14

Connect the veins and arteries

Question 14

What is lumen

Answer 14

Central cavity of a tubular or other hollow structure in an organism / cell

Question 15

What are the differences between arteries and veins?

Answer 15

Arteries :
Away from the heart,
Thick muscular walls
Small lumen
High blood pressure
Veins :
To the heart
Thin walls
Large lumen
Low blood pressure
Has valves