Circulatory System

How many chambers does the heart have ? 

• 4
• 6
• 3
• 1

What is the heart ? 

• meaty organ 
• a small metal spike with a broadened flat head,
• organ of soft nervous tissue 
• muscular organ

What is the main function of the heart ?

• The heart circulates blood, oxygen, and nutrients throughout the body.

• The heart is the control centers for all body activities.

• The heart gets rid of the wastes in your body produced by homeostasis.

• The heart transports , protection and regulation. Blood transports the following substances: urine, metal, and other substances

A blood vessel that carries blood TO the heart is called ...

• vein
• capillary
• blood vessel
• artery

The bottom chambers of the heart are called

• ventricles
• atria
• vena cava
• valves

Which part of the heart pumps deoxygenated (oxygen-poor) blood?

• Left side
• Right side
• Top side
• Bottom side

Where is the bicuspid valve located?

• between right atrium & right ventricle
• between left atrium & left ventricle
• between left ventricle & aorta
• between right ventricle & pulmonary trunk

What is the average person's heart rate at rest?

• 50 beats per minute

• 60 beats per minute

• 75 beats per minute

• 85 beats per minute

Tags

NGSS.HS-LS1-3

What electrical part of the heart is also called the intrinsic pacemaker of the heart?

• SA node
• AV node
• VA node
• purkinje fibers

What is the largest artery in the human body?

• Aorta 
• lung
• ventricle
• vein