The heart

Question 1

What is the circulatory system made up of

Answer 1

-heart
-blood vessels
-blood

Question 2

Do humans have a double or single circulatory system

Answer 2

Double

Question 3

What happens in each of the circulatory systems

1. The … ventricle pumps … blood to the … to take in …, this blood then … to the …
2. The … ventricle … deoxygenated blood around all the … of the body, the blood gives its … to the body … and returns to the … to be … out the … again

Answer 3

1. The right ventricle pumps deoxygenated blood to the lungs to take in oxygen, this blood then returns to the heart
2. The left ventricle pumps deoxygenated blood around all the organs of the body, the blood gives its oxygen to the body cells and returns to the heart to be pumped out the lungs again

Question 4

What does the heart do to pump blood around the body

Answer 4

It contracts

Question 5

What is the heart

Answer 5

-a pumping organ that keeps blood flowing around the body

Question 6

What are the walls of the heart mainly made of

Answer 6

Muscle tissue

Question 7

What does the heart have to make sure blood flows in the right direction

Answer 7

Valves

Question 8

What does the atria do

Answer 8

It contracts, pushing blood into the ventricles

Question 9

What do the ventricles do

Answer 9

They contract forcing blood into the pulmonary artery and the aorta and out of the heart

Question 10

What type of blood vessels supply the heart with oxygen

Answer 10

Coronary arteries

Question 11

What are the different parts of the heart

Right:
-p… a…
-s… v… c…
-r… a…
-r… v…
-i… v… c…
-p… v…
-t… v…

Left:
-a…
-l… v…
-l… a…
-a… v…
-m… v…
-p… v…

Middle:
S…

Answer 11

Right:
-pulmonary artery
-superior vena cava
-right atrium
-right ventricle
-inferior vena cava
-pulmonary valve
-tricuspid valve

Left:
-aorta
-left ventricle
-left atrium
-aortic valve
-mitral valve
-pulmonary vein

Middle:
Septum

Question 12

What is the pacemaker

Answer 12

-your resting heart rate is controlled by a group of cells in the right atrium wall
-they produce small electric impulses which spreads to the surrounding muscle cells causing them to contract

Question 13

Where is the pacemaker in the heart

Answer 13

Right atrium

Question 14

What can be used instead of a pacemaker if the cells don’t work properly

Answer 14

An artificial pacemaker

Question 15

What is an artificial pace maker

Answer 15

-it’s a device that is implanted under the skin and has a wire going to the heart
-it produces an electric current to keep the heart beating regularly