exercise 2 skeletal muscle physiology activity 1 the muscle twitch and the latent period
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Universiteit Antwerpen (UA)
Farmaceutische Wetenschappen
Inleiding Fysiologie En Functionele Anatomie I (1008FBDFAR)
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26-5-2021 PhysioEx Exercise 2 Activity 1
PhysioEx Lab Report
Exercise 2: Skeletal Muscle Physiology
Activity 1: The Muscle Twitch and the Latent Period
Name:
Date:
Session ID:
Pre-lab Quiz Results
You scored 100% by answering 5 out of 5 questions correctly. 1 Skeletal
muscles are connected to bones by
You correctly answered: tendons.
2 Skeletal muscles are composed of hundreds to thousands of individual cells called
You correctly answered: fibers.
3 The term motor unit refers to
You correctly answered: one motor neuron and all of the skeletal muscle fibers it innervates.
4 The motor neuron and muscle fiber intersect at what is called
You correctly answered: the neuromuscular junction.
5 A twitch is
You correctly answered: one contractile response to a single action potential.
Experiment Results
Predict Question
1 Predict Question: Will changes to the stimulus voltage alter the duration of the latent period?
Your answer: No, changing the stimulus voltage will not change the latent period duration.
Stop & Think Questions
1 What is the period of time that elapses between the generation of an action potential and the start of
muscle tension development in a muscle fiber?
You correctly answered: The latent period.
2 What occurs during the latent period of these isometric contractions?
You did not answer this question.
Correct answer: All the steps of excitation-contraction coupling occur.
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