Heart/Vessels Cardiovascular System Flashcard25

Front

How many times does the heart beat per minute (on average)?

Back

72

Front

What covers the surface of the heart?

Back

Pericardium

Front

What is the second layer of the heart? Thick, twisting bundles of cardiac muscle to provide contractions.

Back

Myocardium

Front

What is the third (inner) layer of the heart? thin layer lining the heart chambers

Back

Endocardium

Front

What are the two main circuits of blood flow that circulate blood back to the heart?

Back

Pulmonary and systemic

Front

Which cardiovascular circuit carries blood from the heart to the body tissues and back, dropping off O2 and picking up CO2?

Back

systemic

Front

Which cardiovascular circuit carries blood from the heart to the lungs and back, picking up O2 and releasing CO2? Options: systemic, arterial, pulmonary, venous

Back

pulmonary

Front

What gas is released in the lungs? Options: Oxygen, Carbon dioxide, Nitrogen, Hydrogen

Back

Carbon dioxide

Front

What gas is picked up in the lungs? Options: Oxygen, Carbon dioxide, Nitrogen, Hydrogen

Back

Oxygen

Front

The upper chambers of the heart to receive blood are called:

Back

Atria