The Mammalian Heart

Which of the following are chambers of the heart?

• Valves

• Atrium and ventricle

• Arteries and veins

• Sinoatrial nerve

The heart pumps blood to get ________ to our cells.

• carbon dioxide
• warlocks
• oxygen

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-5

What is the strongest (thickest) part of the heart?

• right atrium
• right ventricle
• left ventricle
• left atrium

Pulmonary Artery

• carries oxygenated blood to atrium
• carries deoxygenated blood to lungs
• carries oxygenated blood to lungs
• none of the above

Name this part.

• Left ventricle
• Pulmonary artery
• Right atrium
• Pulmonary veins

The pacemaker of the heart is also known as the....

• AV node
• SA node
• Purkinje fibres
• Bundle of His

The emptying of the atria is controlled by the:

• SA node
• AV node
• Purkinje fibres
• Bundle of His

What fibres allow the ventricles to contract?

• SA
• AV
• Purkinje
• Bundle of His

Pulmonary circulation involves blood flow to and from the heart and the _______.

• body
• digestive organs
• brain
• lungs

When the ventricles contract, the bicuspid (mitral) valve prevents blood from flowing from the ________.

• right ventricle to right atrium
• left ventricle to left atrium
• left atrium to the right atrium
• right atrium to the left atrium