TRANSPORT SYSTEM RMO

The heart is

• A double pump
• Myogenic
• Generates its own electrical pulse
• All of the above

Tags

NGSS.HS-LS1-3

Which of the following are chambers of the heart?

• Valves

• Atrium and ventricle

• Arteries and veins

• Sinoatrial nerve

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

Tags

NGSS.HS-LS2-5

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 sinoatrial node is located in the ________.

• aorta
• right atrium
• left atrium
• right ventricle

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

What fibres allow the ventricles to contract?

• SA
• AV
• Purkinje
• Bundle of His

Which label is representing the Purkinje fibers?

• A
• C
• D
• E