the heart

The heart contracts twice,

One to the body one to the lungs

Blood is not one type of cell, but

a mixture of cells

How many Chambers does the heart have?

4

What are the top sections of the heat called?

The atriums

What are the bottom Chambers of the heart called?

The ventricles

The artery and veins in the left side are called

The vein going in to the atrium is called the pulmonary vein, and the artery going out of the ventricle is called the aorta

The artery and veins on the right side are called

The vein going into the atrum is the vena cava, the artery coming out of the ventricle is the pulmonary artery

When describing the heart, the sides are

Switched over, eg what’s on the left in a diagram is actualy on the left

To get from the atrium to the ventricles without backward flow, the blood goes though

Valves

The pulmonary artery carries

Deoxygenated blood from the right side of the heart to the lungs

The pulmonary vein carries

Oxygenated blood from the lungs to the left side of the heart

The aorta carries

Oxygenated blood from the left side of the heart to the body

The vena cava carries

deoxygenated blood from the body to the right side of the heart

What does the body do with blood

Use it for respiration

What do the lungs do with blood

Oxygenate it

The left side of the heat has thicker larger muscles because

It requires a stronger push to get all the way around the body

Arteries go

Away from the heart

Veins go

Into the heart

Why do we need valves to prevent backward flow

They prevent oxygenated and deoxygenated blood from mixing, which would be inefficient

The blood curcuit is

infinite