Intro & Anatomy of the Heart

What prevents blood from flowing back into the atria when the ventricles contract?

• semilunar valves

• sinoatrial node

• atrioventricular node

• tricuspid and bicuspid valves

When this chamber contracts, it pushes blood through the tricuspid valve

• right atria

• right ventricle

• left atria

• left ventricle

This stops blood from flowing back into the ventricles each time they contract

• semilunar valves

• tricuspid and bicuspid valves

• Sinoatrial node (SA node)

• Aorta

This chamber of the heart receives oxygenated blood from the lungs

• right atrium

• right ventricle

• left atrium

• left ventricle

Blood traveling through the pulmonary circuit goes through the right side of the heart and out to the _______

• left side of the heart

• body

• lungs

• tricuspid valve

Blood traveling in the systemic circuit goes through the ________ side of the

heart and out to the ________ .

• left, lungs
• right, body
• right, lungs
• left, body

Label this structure

a

Septum

SA Node

Mitral valve

Arota

Label the chambers of the heart

a

b

c

d

Left Atrium

Right Atrium

Left Ventricle

Right Ventricle

This allows one-way flow of blood:

• veins

• cusps

• valves

The upper chambers of the heart are called:

• atria

• septa

• ventricles

• tubercles