Circulatory System

What is the correct path through the circulatory system which describes the passage of blood originating in the left leg?

• Vena cava → left atrium → right atrium → lungs → left ventricle → right ventricle → aorta

• Vena cava → right atrium → left atrium → lungs → right ventricle → left ventricle → aorta

• Vena cava → left atrium → left ventricle → lungs → right atrium → right ventricle → aorta

• Vena cava → right atrium → right ventricle → lungs → left atrium → left ventricle → aorta

The S1 sound (Lub) is the sound of which 2 valves closing?

• Tricuspid

• Pulmonary

• Mitral

• Aortic

How can the circulatory system promote heat retention/conservation, such as on a cold day?

• Cause dehydration

• Increase blood loss

• Constrict blood vessels

• Dilate blood vessels

This type of vessel carries blood TO the heart....

• Capillary

• Vein

• Artery

• Nerve

A TINY blood vessel that allows for exchange between blood and cells in the tissue in the body is ...

• Capillary

• Vein

• Artery

• Nerve

Veins have special ________________ to stop blood from flowing backward.

• Gravity

• Valves

• Arteries

• Ventricles

The circulatory system works with the ___________ system to provide our body with oxygen.

• Digestive

• Respiratory

• Muscular

• Nervous

Tubes containing blood are called ...

• Blood vessels

• Arteries

• Veins

• Capillaries

The upper chambers of the heart are the...

• Vesicles

• Atria

• Ventricles

• Arteries

The lower chambers of the heart are called the ...

• Atrium

• Arteries

• Vesicle

• Ventricles