Cardiovascular Slides 27-37

How much is the entire blood volume in an average human?

• 4L

• 5-6L

• 8-9L

• 11L

The intrinsic conduction system is the electrical system of the heart that sets the basic _______.

Which of the following is not another name for the sinoatrial node?

• AV

• SA

• Pacemaker

Which of the following starts each heart beat?

• Bundle of His

• Purkinje fibers

• AV node

• SA node

Cardiac cycle = the events of _ heart beat(s)

• 1

• 2

• 3

• 4

The cardiac cycle includes contraction and relaxation of both atria and _______.

Contraction of the ventricles is known as

• Diastole
• Systole

Relaxation of the ventricles is known as

• Diastole
• Systole

A ___________ is a recording of the flow of electrical impulses that travel through the heart.

The average heart rate is ​ between 70 -​ _ bpm (beats per minute).