heart activity

Question 1

how many quarts of blood does the heart pump in a single day

Answer 1

6,000 quarts

Question 2

what are the two systems to regulate heart activity

Answer 2

Autonomic nervous system and intrinsic conduction system (nodal system)

Question 3

how many beats permute does the intrinsic conduction system contract

Answer 3

75 beats per minute

Question 4

what are SA nodes

Answer 4

pacemakers of the heart
start the heartbeat and sets the pace

Question 5

what are the atrioventricular nodes

Answer 5

located at the AV junction sends passages from the ratios to the ventricles

Question 6

what are bundle branches

Answer 6

located in the AV septum

Question 7

what are atrioventricular bundle

Answer 7

portion of the nodel system between the AV node and bundle branches

Question 8

what are Purkinje

Answer 8

Send nerve impulses to the cells in the ventricles of the heart and cause them contract and pump blood either to the lungs or the rest of the body.

Question 9

what is ischemia

Answer 9

lack of blood supply

Question 10

what is fibrillation

Answer 10

rapid quiver of the ventricles (wiggly worms)

Question 11

what is the term for rapid heart rate

Answer 11

tachycardia = too faast

Question 12

what is the term for slower heart rate

Answer 12

bradycardia

Question 13

between the two terms tachycardia and bradycardia which can lead to fibrillation

Answer 13

tachycardia

Question 14

what causes heart block

Answer 14

when there is damage to the AV nodes and it blocks the control of SA nodes