Module 1

Question 1

records the electrical activity of the heart, providing a record of cardiac electrical activity, as well as valuable information about the heart’s function and structure.

Answer 1

electrocardiogram (EKG)

Question 2

EKG can also be known as

Answer 2

ECG and/or electroKardiogram

Question 3

generate involunatry movement
they form the walls of the esophagus, stomach, intestines, bronchi, uterus, urethra, bladder, and blood vessels, among other portions of the body.

Answer 3

Smooth muscles

Question 4

Describe cardiac muscles

Answer 4

involuntary, striated, only found in the heart

Question 5

How are cardiac muscles connected

Answer 5

branching, irregular angles called intercalated discs.

Question 6

S-A Node of Sinus Node

Answer 6

The “pace-maker” of the heart. It’s pacing activity is known as “sinus rhythm”.

Question 7

Automaticity

Answer 7

is the ability of the S-A Node to generate pacemaking stimuli

Question 8

Where is the SA node located

Answer 8

upper-posterior wall of the right atrium

Question 9

the electrical pathways that connect the S-A Node and the A-V Node

Answer 9

Internodal pathways

Question 10

Anterior internodal or interatrial pathway — ANOTHER NAME

Answer 10

Bachmann’s Bundle

Question 11

Middle internodal pathway– AKA

Answer 11

Wenckebach

Question 12

Posterior internodal pathway – AKA

Answer 12

Thorel

Question 13

the sole pathway to conduct the depolarization stimulus through the fibrous AV valves to the ventricles.

Answer 13

Atrio-Ventricular (AV) Valves-

Question 14

Depolarization slows down through the

Answer 14

AV Node; the pause or P-R segment is produced

Question 15

Bundle of His or AV Bundle

Answer 15

electrical fibers between AV Node and Right and Left Bundle Branches

Question 16

Bundle of His causes

Answer 16

rapid depolarization

Question 17

Right and left bundle branches cause

Answer 17

depolarization of ventricles

Question 18

A bundle branch block (electrical) can be confused with

Answer 18

blocked coronary artery (plumbing).

Question 19

Right and left bundle branches receive

Answer 19

electrical impulses at the same time

Question 20

Left Bundle branch leads to the

Answer 20

anterior and posterior fascicle

Question 21

A Left Bundle Branch Block (LBBB) is

Answer 21

proximal to the fascicles

Question 22

What are hemiblocks

Answer 22

an individual blockage of either fascicle, can be anterior or posterior

Question 23

The right and left bundle branches end at the

Answer 23

apex and become Purkinje fibers

Question 24

little fingers reaching out in the myocardium just under the endocardium

Answer 24

terminal filaments

Question 25

terminal filaments cause

Answer 25

epicardium depolarization

Question 26

The Purkinje fibers don’t

Answer 26

penetrate the myocardium, they just divide beneath the endocardial lining

Question 27

the terminal fibers penetrate

Answer 27

the myocytes

Question 28

Heart Attack

Answer 28

blocked coronary arteries ( a plumbing issue) that cause myocyte death. Can cause cardiac arrest

Question 29

Cardiac arrest-

Answer 29

stopping of the electrical activity of the heart

Question 30

dysynchrony

Answer 30

septum contracts before the lateral wall, caused by LBBB

Question 31

normally the septum and the lateral wall to contract

Answer 31

at the same time

Question 32

All patients with pacemakers and/or defibrillators will have some form

Answer 32

dyssynchrony