Gas Exchange and the Respiratory and Circulatory Systems

Where does the electrical current in the heart start?

• The ventricle

• The apex

• The sinoatrial node

• The coronary artery

Name the only artery that carries deoxygenated blood.

• Pulmonary artery

• Aorta

• The Vena cava

• Pulmonary veins

The right side of the heart receives:

• oxygenated blood from the circulation

• deoxygenated blood from the lungs

• oxygenated blood from the left side of the heart

• deoxygenated blood from the circulation

The largest artery is the:

• aorta

• pulmonary artery

• inferior vena cava

• carotid artery

The role of capillaries is to:

• Carry oxygen and nutrients to cells, and take carbon dioxide away from the cells

• Carry deoxygenated blood and waste away from body cells and to the heart

• Take oxygenated blood to the heart

• Maintain oxygen levels in blood

Tags

NGSS.HS-LS2-5

Large, thick walled blood vessels are:

• Veins

• Capillaries

• Arteries

• Haemoglobin

What does the septum do?

• divides the heart into two pumps

• keeps the heart pumping

• helps to produce blood cells

• oxygenates the blood

Systole is...

• the word used to describe the heart and its functions

• when the heart contracts, the blood is forced out of the heart

• the name of the blood leaving the body

• when the heart relaxes, blood enters the heart

What component of the heart is number 9

• Left Ventricle

• Left Atrium

• Right Ventricle

• Right Atrium

Name this part.

• Right ventricle
• Pulmonary artery
• Left ventricle
• Right atrium