The Human Heart: Anatomy and Circulation

The two receiving chambers for blood are the ___.

left and right atria

The two discharging chambers for blood are the ___.

left and right ventricles

The ___ separates the heart chambers.

septum

The LEFT side of the heart RECEIVES blood FROM the ____.

lungs

The RIGHT side of the heart RECEIVES blood FROM the

body

The LEFT side of the heart PUMPS blood TO the

body

The RIGHT side of the heart PUMPS blood TO the

lungs

Left ventricle

oxygenated

Right ventricle

deoxygenated

Left atrium

oxygenated

Right atrium

deoxygenated

Pulmonary artery

deoxygenated

Pulmonary vein

oxygenated

Superior vena cava

deoxygenated

Inferior vena cava

deoxygenated

Aorta

oxygenated

The blood in the LEFT side of the heart is oxygenated/deoxygenated. Why is this logical?

Oxygenated - comes from the lungs, where oxygenation of the blood occurs

-> then it pumps the oxygenated blood to the body

The blood in the RIGHT side of the heart is oxygenated/deoxygenated. Why is this logical?

Deoxygenated - comes from the body, to pump to lungs to become oxygenated

Lung capillaries

deoxygenated -> oxygenated

- deoxygenated blood from the body is pumped into the lungs to be re-oxygenated

Body capillaries

oxygenated -> deoxygenated

- oxygenated blood from the lungs is pumped into the body to be used and becomes deoxygenated blood

Right atrium (after)

right ventricle

Left atrium (after)

left ventricle

Right ventricle (after)

pulmonary arteries

Left ventricle (after)

aorta

Pulmonary veins (after)

left atrium

Pulmonary arteries (after)

lungs

Aorta (after)

body

Superior & Inferior vena cava (after)

right atrium

Lungs (after)

pulmonary veins

Organs & legs (after)

inferior vena cava

Head (after)

superior vena cava

Right atrium (before)

superior vena cava

Left atrium (before)

pulmonary veins

Right ventricle (before)

right atrium

Left ventricle (before)

left atrium

Pulmonary veins (before)

lungs

Pulmonary arteries (before)

right ventricle

Aorta (before)

left ventricle

Superior vena cava (before)

head

Inferior vena cava (before)

organs & legs

Lungs (before)

pulmonary arteries

Organs & legs (before)

aorta

Head (before)

aorta

What could happen if a heart valve did not work properly?

blood would flow in the wrong direction

What is the difference between pulmonary and systemic circulation?

pulmonary - to and from lungs

systemic - to whole body