Ch1

Question 0

Heart has how many layers

Answer 0

3

Question 1

Heart is located

Answer 1

Mediastinum

Question 2

Sac around the heart is called? What fluid is in there?

Answer 2

Pericardial sac, lubricating fluid

Question 3

Chambers

Answer 3

4

Question 4

2 upper Chambers are what and function as

Answer 4

Atrium, collecting and loading

Question 5

2 bottom chambers r what and function as

Answer 5

Ventricles, pumping

Question 6

Two types of myocardial cells

Answer 6

Contractily conduction

Question 7

Cells are at rest

Answer 7

Polarization

Question 8

When ion are moving in myocardial cells

Answer 8

Depolarization

Question 9

Myocardial ions goin back to resting stage

Answer 9

Repolarization

Question 10

Heart is contracting

Answer 10

Systolic

Question 11

Heart at rest phase

Answer 11

Diastolic

Question 12

Unique property that allows myocardial cells to initiate and maintain activity

Answer 12

Automaticity

Question 13

Property that allows myocardial cells to relay an impulse to a neighbor cell

Answer 13

Conductivity

Question 14

Property allows cell to respond to an impulse

Answer 14

Excitability

Question 15

Property that allows myocardial cells to respond to impulses with pumping action

Answer 15

Contractility

Question 16

Pace maker

Answer 16

Sa node

Question 17

Sa node is located

Answer 17

Rt atrium

Question 18

Gate keeper

Answer 18

Av node

Question 19

Depolarization causes

Answer 19

Contraction