What is the primary function of gap junctions in cardiac muscle cells?
The Cardiomyocyte Action Potential [Part 2]: Physiological Events in Cell

Interactive Video
•
Science, Biology
•
University
•
Hard
Quizizz Content
FREE Resource
Read more
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To store calcium ions
To provide structural support
To generate electrical impulses
To facilitate rapid ion movement between cells
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the resting membrane potential when positively charged ions enter a cardiomyocyte?
It becomes more negative
It becomes more positive
It remains unchanged
It fluctuates randomly
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which ion's influx is responsible for the depolarization phase in cardiac muscle cells?
Potassium
Chloride
Calcium
Sodium
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During the plateau phase, what is the relationship between potassium efflux and calcium influx?
Neither occurs
They are balanced
Calcium influx is greater
Potassium efflux is greater
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What triggers the release of more calcium from the sarcoplasmic reticulum during the plateau phase?
Sodium influx
Calcium influx
Potassium efflux
Mechanical stress
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the calcium channels during the repolarization phase?
They open wider
They remain unchanged
They become inactive
They close
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to remove calcium from the sarcoplasm during repolarization?
To store energy
To increase contraction strength
To prevent tetany
To maintain a positive membrane potential
Create a free account and access millions of resources
Similar Resources on Wayground
8 questions
Excitation-Contraction Coupling in Skeletal Muscle [Part 1/2]

Interactive video
•
University
8 questions
Anatomy - Mechanisms of Smooth Muscle Contraction

Interactive video
•
University
8 questions
The Action Potential in All Its Glory - A Review/Summary

Interactive video
•
University
8 questions
The Cardiomyocyte Action Potential [Part 1]: The Action Potential Graph

Interactive video
•
University
5 questions
The Cardiac Muscle Action Potential EXPLAINED

Interactive video
•
University
2 questions
The Cardiomyocyte Action Potential [Part 2]: Physiological Events in Cell

Interactive video
•
University
8 questions
Action Potentials and Contraction in Cardiac Muscle Cells

Interactive video
•
University
4 questions
Cardiac Muscle Action Potential Diagram EXPLAINED

Interactive video
•
University
Popular Resources on Wayground
25 questions
Equations of Circles

Quiz
•
10th - 11th Grade
30 questions
Week 5 Memory Builder 1 (Multiplication and Division Facts)

Quiz
•
9th Grade
33 questions
Unit 3 Summative - Summer School: Immune System

Quiz
•
10th Grade
10 questions
Writing and Identifying Ratios Practice

Quiz
•
5th - 6th Grade
36 questions
Prime and Composite Numbers

Quiz
•
5th Grade
14 questions
Exterior and Interior angles of Polygons

Quiz
•
8th Grade
37 questions
Camp Re-cap Week 1 (no regression)

Quiz
•
9th - 12th Grade
46 questions
Biology Semester 1 Review

Quiz
•
10th Grade