Heart

Question 1

Label:

Answer 1

Question 2

Descirbe the nature of myocardial cells:

Answer 2

Question 3

How is exitation between heart cells spreaded?

Answer 3

Question 4

Label electrical coupling of cardiac cells”

Answer 4

Question 5

What are the main locations conduction take place in the heart?

Answer 5

Question 6

What is the band that runs behind the asceding aorta and connects the top atriums?

Answer 6

Question 7

Differentiate between PM potentials and AP

Answer 7

Question 8

Descibe this Graph

Answer 8

Question 9

Describe events occuring in the hearts pacemaker

Answer 9

Question 10

What are pacemaker potentials?

Answer 10

Question 11

What are the 3 functional regions of the AV node?

Answer 11

Question 12

What is teh effect of sympathetic activity on the heart RATE?

Answer 12

Question 13

What is the effect of sympathetic activity on SA nodal cells?

Answer 13

Question 14

In sympathetic regulation what is the autonomic regulation of PM function?

Answer 14

Question 15

What is the effect of PARA sympathetic activity on the heart?

Answer 15

Question 16

How is parasympathetic stimulation regulated in heart through PM function?

Answer 16

Question 17

Label and locate contraction

Answer 17

Question 18

What is used to measure hearts AP?

Answer 18

Question 19

Whats the difference between artificial and real pacemakers?

Answer 19

Question 20

What is the Artifical pacemaker composed of?

Answer 20

Question 21

How is polarity achieved in Artifical PM’s?

Answer 21

Question 22

What other leads are used for PM?

Answer 22

Question 23

What types of heart blocks are there?

Answer 23

Question 24

What types of PM are there and how do they generally work?

Answer 24

Question 25

Describe aspects of

a) implantation
b) communication
c) cause of total loss of capture

Answer 25