IB SEHS: Cardovascular System Flashcard

Front

What is Plasma?

Back

Plasma is the liquid component of blood, making up about 55% of its volume, and is mostly composed of water.

Front

What is the function of Platelets?

Back

Platelets are small cell fragments in the blood that help with clotting when there is a cut or injury.

Front

What is the approximate size of the human heart?

Back

The human heart is roughly the size of a fist.

Front

What gases are exchanged in the lungs during breathing?

Back

During breathing, the lungs take in oxygen and remove carbon dioxide.

Front

What is the role of Arteries in the cardiovascular system?

Back

Arteries are blood vessels that carry oxygenated blood away from the heart to the rest of the body.

Front

What are Red Blood Cells?

Back

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

Front

What are White Blood Cells?

Back

White blood cells are part of the immune system and help the body fight infections and diseases.

Front

What is the function of Capillaries?

Back

Capillaries are tiny blood vessels where the exchange of oxygen, carbon dioxide, nutrients, and waste occurs between blood and tissues.

Front

What is the significance of the heart's valves?

Back

The heart's valves ensure unidirectional blood flow through the heart chambers and prevent backflow.

Front

What is the role of the Aorta?

Back

The Aorta is the largest artery in the body, responsible for carrying oxygen-rich blood from the heart to the rest of the body.