What is the primary role of sodium ions in depolarization?
Muscle Physiology 1: Converting a Nerve Impulse into a Muscle Action Potential

Interactive Video
•
Science, Health Sciences, Biology
•
University
•
Hard
Quizizz Content
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To decrease the charge inside the cell
To move potassium ions out of the cell
To inhibit muscle contraction
To propagate the action potential
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the neuromuscular junction?
A type of muscle fiber
The synapse between a motor neuron and a muscle cell
A type of neurotransmitter
A calcium storage site
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What triggers the exocytosis of acetylcholine at the neuromuscular junction?
Influx of calcium ions
Influx of sodium ions
Efflux of potassium ions
Efflux of chloride ions
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when acetylcholine binds to its receptor?
Potassium channels open
Chloride channels open
Sodium channels open
Calcium channels close
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of channel is opened by acetylcholine binding?
Temperature-gated ion channel
Mechanically-gated ion channel
Ligand-gated ion channel
Voltage-gated ion channel
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main function of voltage-gated sodium channels in muscle cells?
To store calcium ions
To inhibit depolarization
To propagate action potentials
To release neurotransmitters
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of sodium influx through voltage-gated sodium channels?
Stabilization
Depolarization
Hyperpolarization
Repolarization
Create a free account and access millions of resources
Similar Resources on Quizizz
8 questions
014 The Journey Down the Axon

Interactive video
•
University
11 questions
Muscle Physiology 2: Voltage-Gated Potassium Channels and the Action Potential

Interactive video
•
University
6 questions
009 Depolarization: Phase 1 of the Action Potential

Interactive video
•
University
8 questions
Action Potential

Interactive video
•
12th Grade
8 questions
014 The Journey Down the Axon

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

Interactive video
•
University
8 questions
Action Potential Physiology (Part 2)

Interactive video
•
University
8 questions
012 The Absolute and Relative Refractory Periods

Interactive video
•
University
Popular Resources on Quizizz
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