Physiology of the Muscle System
Final Report
Student Name Anonda Garnett
Student ID 449830
Lesson Physiology of the Muscle System
Institution Straighterline
Session V5
Course BIO201L: Anatomy & Physiology I Lab
Instructor Instructor Account
Test Your Knowledge
Match each term with the best description.
A rapid sequence of changes in the voltage across the
1Action potential
membrane of a cell
A state of stable voltage across a cell membrane
2Resting membrane potential
Site where the terminal end of a motor axon meets the
motor end plate of a muscle fiber 3Neuromuscular junction
Individual neuron and all of the muscle fibers it
4Motor unit
innervates
Gap between the neuron's axon terminal and the
5Synapse
muscle fiber
Copyright 2025 - Science Interactive |
https://scienceinteractive.com
, Categorize each statement as true or false.
True False
1 2
During complete tetanus, muscle fiber In a nerve conduction study, the period
contraction remains continuous and between stimulation and the beginning
uninterrupted until the signal stops or of the muscle contraction is called the
fatigue occurs. relaxation phase.
An electromyogram plots the muscle Muscle fatigue results from the buildup
cell voltage in millivolts (mV) on the y- of lactic acid in muscle tissue.
axis, with time on the x-axis.
Exploration
Membrane voltage, or potential, is generated first by the
movement of sodium ions (Na+) into the cell, and later the
movement of potassium ions (K+) out of the cell.
True
False
Muscle fibers innervated by the same motor neuron may
contract as multiple units.
True
False
A twitch is a single contraction and relaxation period consisting of
a .
latent period
contraction phase
relaxation phase
All of the above
Copyright 2025 - Science Interactive |
https://scienceinteractive.com