Review: Circulatory System

Front

What are platelets?

Back

Platelets are small cell fragments in the blood that help clot blood, preventing excessive bleeding.

Front

What is the function of white blood cells?

Back

White blood cells fight infection and disease by attacking pathogens and foreign substances.

Front

True or False: The circulatory system helps the body regulate temperature.

Back

False. The circulatory system does help regulate body temperature by distributing heat.

Front

What is the pathway of blood through the chambers of the heart?

Back

The pathway is: right atrium -> right ventricle -> lungs -> left atrium -> left ventricle.

Front

What are valves in the heart?

Back

Valves are structures that act as on and off switches to let blood in and out of the heart.

Front

What is the main function of the circulatory system?

Back

The main function of the circulatory system is to transport oxygen, nutrients, hormones, and waste products throughout the body.

Front

What is the role of red blood cells?

Back

Red blood cells carry oxygen from the lungs to the body's tissues and return carbon dioxide from the tissues back to the lungs.

Front

What is plasma?

Back

Plasma is the liquid component of blood that carries cells, nutrients, hormones, and waste products.

Front

How does the heart pump blood?

Back

The heart pumps blood through a series of contractions, pushing blood into the arteries and throughout the body.

Front

What are arteries?

Back

Arteries are blood vessels that carry oxygen-rich blood away from the heart to the body's tissues.