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ECG

ECG

Assessment

Flashcard

•

Science

•

6th - 8th Grade

•

Hard

Created by

Barbara White

FREE Resource

Student preview

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20 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Electrocardiogram Noun

[uh-lek-troh-kahr-dee-uh-gram]

Back

Electrocardiogram


A noninvasive test that records the heart's electrical activity to help diagnose various common heart problems and conditions.

Example: This image shows three different advanced methods for calculating a person's heart rate in beats per minute (bpm) by analyzing the waves on an electrocardiogram strip.
Media Image

2.

FLASHCARD QUESTION

Front

SA node Noun

[es-ey nohd]

Back

SA node


The heart's natural pacemaker, which spontaneously generates electrical impulses to establish the normal heart rate and rhythm.

Example: This diagram shows the SA node, the heart's natural pacemaker, located in the upper right chamber, initiating the electrical signal for a heartbeat.
Media Image

3.

FLASHCARD QUESTION

Front

Purkinje fibers Noun

[per-kin-jee fahy-berz]

Back

Purkinje fibers


Specialized fibers that transmit electrical impulses to the ventricular muscle cells, causing them to contract and pump blood.

Example: This diagram shows the heart's electrical system, where Purkinje fibers are the final pathways that make the ventricles contract and pump blood.
Media Image

4.

FLASHCARD QUESTION

Front

Depolarization Noun

[dee-poh-ler-uh-zey-shuhn]

Back

Depolarization


The electrical event that triggers the contraction phase, known as systole, of the heart muscle cells.

Example: This graph shows depolarization as the rapid increase in a cell's electrical voltage, which is the fundamental electrical event that creates a heartbeat.
Media Image

5.

FLASHCARD QUESTION

Front

Repolarization Noun

[ree-poh-ler-uh-zey-shuhn]

Back

Repolarization


The electrical event that leads to the relaxation phase, known as diastole, of the heart muscle cells.

Example: This graph shows how a heart cell's electrical charge changes. Repolarization is the phase where the charge returns to its resting level after a peak.
Media Image

6.

FLASHCARD QUESTION

Front

Systole Noun

[sis-tuh-lee]

Back

Systole


The phase of the cardiac cycle during which the heart muscle contracts to pump blood out of the chambers.

Example: This image shows the heart during systole, the pumping phase, where the ventricles contract to push blood out to the body and lungs.
Media Image

7.

FLASHCARD QUESTION

Front

Diastole Noun

[dahy-as-tuh-lee]

Back

Diastole


The phase of the cardiac cycle when the heart muscle relaxes, allowing the chambers to fill with blood.

Example: This diagram shows diastole, the phase where the heart muscle relaxes and its chambers (ventricles) fill with blood before the next contraction.
Media Image

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