Ch 12: Onine 1

Question 1

Which chamber of the heart is made of myocardium?

Answer 1

Atria and Ventricles

Question 2

Pumps blood the the: body-lungs

Answer 2

LV - RV

Question 3

Receives blood from the: body-lungs

Answer 3

RA-LA

Question 4

AV valves: right-left

Answer 4

Tricuspid - Mitral

Question 5

What valves are anchored by chordae tendinease?

Answer 5

Mitral and Tricuspid

Question 6

What valves close when ventricles contract?

Answer 6

Mitral and Tricuspid

Question 7

What valves close when ventricles relax?

Answer 7

Aortic and Pulmonary

Question 8

What initiates each beat?

Answer 8

SA node

Question 9

What is the location of the Central Nervous System (CNS) cardiac centers?

Answer 9

Medulla

Question 10

What are nerves to slow the heart rate?

Answer 10

Vagus nerves that release acetylcholine

Question 11

What are the Carotid sinus receptors?

Answer 11

Pressoreceptors, also found in the aortic sinus

Question 12

Cardiac output, the volume of blood pumped, is measured in what units?

Answer 12

Per minute

Question 13

A synonym for heart rate

Answer 13

Pulse

Question 14

What are the vessels of the heart?

Answer 14

Coronary arteries and veins

Question 15

A synonym for visceral pericardium

Answer 15

Epicardium