The Circulatory System - The Heart

Question 1

What is the circulatory system?

Answer 1

Group of organs that help carry substances in and out of the body

Question 2

What organs are included in the circulatory system?

Answer 2

Blood
Heart
Blood vessels

Question 3

What type of circulatory systems do humans use?

Answer 3

A closed circulatory system meaning that the blood is contained in vessels

Question 4

Advantages of Closed circulatory systems:

Answer 4

Can control the speed of blood flow
Can control the pressure of the blood
Can control the distribution of the blood to the body

Question 5

Humans have double circulatory systems.
What is a double circulatory system?

Answer 5

A double circulatory system is a system where the blood is pumped to the lungs, returned to the heart and then pumped to to the rest of the body.

Question 6

What is the heart?

Answer 6

The heart is an organ that helps blood flow in the body

Question 7

What is the heart made out of ?

Answer 7

Cardiac Muscle (Tissue)

Question 8

Name the 4 Chambers of the heart:

Answer 8

Right atrium
Left Atrium
Right ventricle
Left ventricle

Question 9

Name the 4 Arteries and veins that transport the blood and out of the body:

Answer 9

Pulmonary Vein
Aorta
Vena Cava
Pulmonary Artery

Question 10

Arteries carry what type of blood?

Answer 10

Oxygenated blood

Question 11

What is the only artery that carries Deoxygenated blood?

Answer 11

Pulmonary Artery

Question 12

Veins carry what type of blood?

Answer 12

Deoxygenated Blood

Question 13

What is the only Vein that carries Oxygenated Blood?

Answer 13

Pulmonary Vein

Question 14

Process of Blood flow:

Answer 14

1. The heart is made out of Cardiac muscle.
2. The Pulmonary Vein carries Oxygenated blood from the lungs to the left Atrium
3. Blood pushed down to the left ventricle where it is squeezed out through the Aorta
4. The Aorta carries the oxygenated blood to the cells for cellular respiration and after it goes through respiration ,it release Carbon dioxide and water
   vapour .
5. This deoxygenated blood is then carried by the Vena Cava to the Right Atrium
6. The blood then tricks down the right atrium into the right ventricle and the deoxygenated bloods then squeezed out into the pulmonary artery.
7. The Pulmonary Artery carries the Deoxygenated Blood to the lungs for gas exchange

Question 15

What is a pacemaker?

Answer 15

A group of cells in the right atrium that produce electrical impulses to the muscle to contract