Mechanical Properties of the Heart

Mechanical Properties of the Heart

University - Professional Development

9 Qs

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Mechanical Properties of the Heart

Mechanical Properties of the Heart

Assessment

Quiz

Biology, Science

University - Professional Development

Medium

Created by

RALPH JACINTO

Used 15+ times

FREE Resource

9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

10 sec • Ungraded

Were you able to watch the videos in Canvas?

Yes

Yes, but did not finish

No

2.

REORDER QUESTION

1 min • 5 pts

Arrange the steps in the excitation-contraction coupling of cardiac muscles:

DHP receptors open to allow Ca2+ influx.

Free Ca2+ binds to tropC exposing the myosin-binding site.

Ca2+ influx triggers opening of ryanodine receptors.

Action potentials traveling down the T-tubules depolarize the cell membrane.

Actin myosin binding occurs.

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following exhibits positive inotropy?

beta 1 receptor activation

beta 1 receptor inhibition

muscarinic receptor activation

4.

OPEN ENDED QUESTION

1 min • Ungraded

Media Image

What will be the effect of Na+/K+-ATPase inhibitor on the contraction of cardiac muscles?

Evaluate responses using AI:

OFF

5.

REORDER QUESTION

2 mins • 5 pts

Arrange the events in cardiac cycle that occurs after atrial systole.

Diastasis

Ejection phase

Isovolumetric contraction

Isovolumetric relaxation

Rapid ventricular filling

6.

MATCH QUESTION

1 min • 4 pts

Match the heart sounds with their causes.

Closure of SL valves

S4

Rush of blood during rapid ventricular filling

S2

Closure of AV valves

S3

Vibration produced by the atrial muscles when contracting against noncompliant ventricles

S1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Can we give beta blockers on patients with heart failure?

Yes

No

8.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which best describes cardiac output?

The volume of blood pumped out per ventricular contraction

The volume of blood pumped out per minute

The portion of the end-diastolic volume that is ejected.

The number of beats per minute.

9.

MULTIPLE CHOICE QUESTION

1 min • 3 pts

Which pressure-volume loop depicts the effects of changes in inotropy to stroke volume?

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Media Image
Media Image