
Visual Essentials of Anatomy &Physiology
1st Edition
ISBN: 9780321780775
Author: Martini, Frederic
Publisher: Prentice Hall
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Question
Chapter 6, Problem 1CRQ
Summary Introduction
To describe: The basic sequence of events taking place at the neuromuscular junction.
Introduction: The nervous system controls the skeletal muscle fiber contraction. It controls the muscle fiber at the neuromuscular junction (NMJ), which is a specialized intracellular connection situated midway along the length of the muscle fiber.
Expert Solution & Answer

Explanation of Solution
The sequence of events taking place at a neuromuscular junction:
- The motor neuron presents at the neuromuscular junction’s release acetylcholine (ACh) that alters the permeability of the plasma membrane.
- This change permits the entry of positive charges. This in turn generates an action potential or electrical impulse in the sarcolemma.
- The action potential or electrical impulse spreads across the muscle fiber’s surface and also into the interior along the transverse or T tubules.
- The calcium ion (which are released from the sarcoplasmic reticulum) concentration in the cytoplasm increases, which in turns triggers the muscle fiber contraction.
- The acetylcholinesterase (AChE) removes the ACh from motor end plate and synaptic cleft and as a result, the contraction ends.
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Chapter 6 Solutions
Visual Essentials of Anatomy &Physiology
Ch. 6.1 - Describe the Organization of skeletal muscle at...Ch. 6.1 - Prob. 2LOCh. 6.1 - Prob. 3LOCh. 6.1 - Prob. 4LOCh. 6.1 - Prob. 5LOCh. 6.1 - Prob. 1.1RCh. 6.1 - Prob. 1.2RCh. 6.1 - Prob. 1.3RCh. 6.1 - In a sarcomere, what is the zone of overlap?
Ch. 6.1 - Describe the components of thin and thick...
Ch. 6.1 - Prob. 2.3RCh. 6.1 - Prob. 3.1RCh. 6.1 - Prob. 3.2RCh. 6.1 - Prob. 3.3RCh. 6.1 - Prob. 4.1RCh. 6.1 - Prob. 4.2RCh. 6.1 - Prob. 4.3RCh. 6.1 - Prob. 5.1RCh. 6.1 - Prob. 5.2RCh. 6.1 - What triggers myosin reactivation?
Ch. 6.1 - Prob. 1.1SRCh. 6.1 - Prob. 1.2SRCh. 6.1 - Prob. 1.3SRCh. 6.1 - Prob. 1.4SRCh. 6.1 - Prob. 1.5SRCh. 6.1 - Prob. 1.6SRCh. 6.1 - Prob. 1.7SRCh. 6.1 - Prob. 1.8SRCh. 6.1 - Prob. 1.9SRCh. 6.1 - Prob. 2.1SRCh. 6.1 - Label the structures in this diagram of adjacent...Ch. 6.1 - Prob. 2.3SRCh. 6.1 - Prob. 2.4SRCh. 6.1 - Prob. 2.5SRCh. 6.1 - Prob. 2.6SRCh. 6.1 - Prob. 2.7SRCh. 6.1 - Prob. 2.8SRCh. 6.1 - Prob. 2.9SRCh. 6.1 - Vocabulary
In the space provided, write the...Ch. 6.1 - Prob. 3.2SRCh. 6.2 - Describe the mechanism responsible for producing...Ch. 6.2 - Prob. 2LOCh. 6.2 - Prob. 3LOCh. 6.2 - Prob. 4LOCh. 6.2 - Prob. 5LOCh. 6.2 - Prob. 1.1RCh. 6.2 - Prob. 1.2RCh. 6.2 - Prob. 1.3RCh. 6.2 - Prob. 2.1RCh. 6.2 - Prob. 2.2RCh. 6.2 - Prob. 2.3RCh. 6.2 - Prob. 3.1RCh. 6.2 - Prob. 3.2RCh. 6.2 - Prob. 3.3RCh. 6.2 - Prob. 4.1RCh. 6.2 - Prob. 4.2RCh. 6.2 - Prob. 4.3RCh. 6.2 - Prob. 5.1RCh. 6.2 - Prob. 5.2RCh. 6.2 - Prob. 5.3RCh. 6.2 - Prob. 1.1SRCh. 6.2 - Prob. 1.2SRCh. 6.2 - Prob. 1.3SRCh. 6.2 - Prob. 1.4SRCh. 6.2 - Prob. 1.5SRCh. 6.2 - Prob. 1.6SRCh. 6.2 - Prob. 1.7SRCh. 6.2 - Prob. 1.8SRCh. 6.2 - Prob. 2.1SRCh. 6.2 - Prob. 2.2SRCh. 6.2 - Prob. 2.3SRCh. 6.2 - Prob. 2.4SRCh. 6.2 - Prob. 2.5SRCh. 6.2 - Prob. 2.6SRCh. 6.2 - Explain what happens to the lactate produced...Ch. 6.2 - Some clinical conditions of the muscular system...Ch. 6.2 - Prob. 3.3SRCh. 6.3 - Explain how the name of a muscle can help identify...Ch. 6.3 - Prob. 2LOCh. 6.3 - Prob. 3LOCh. 6.3 - Prob. 4LOCh. 6.3 - Identify the main muscles of the head and neck,...Ch. 6.3 - Prob. 6LOCh. 6.3 - Prob. 7LOCh. 6.3 - Prob. 8LOCh. 6.3 - Prob. 9LOCh. 6.3 - Prob. 10LOCh. 6.3 - Prob. 11LOCh. 6.3 - Prob. 1.1RCh. 6.3 - Prob. 1.2RCh. 6.3 - Prob. 1.3RCh. 6.3 - Prob. 2.1RCh. 6.3 - Prob. 2.2RCh. 6.3 - Prob. 2.3RCh. 6.3 - Prob. 3.1RCh. 6.3 - Prob. 3.2RCh. 6.3 - What hand movements occur when wriggling into...Ch. 6.3 - Prob. 4.1RCh. 6.3 - Prob. 4.2RCh. 6.3 - Prob. 4.3RCh. 6.3 - Prob. 5.1RCh. 6.3 - Prob. 5.2RCh. 6.3 - Prob. 5.3RCh. 6.3 - Prob. 6.1RCh. 6.3 - Prob. 6.2RCh. 6.3 - Prob. 6.3RCh. 6.3 - Prob. 7.1RCh. 6.3 - Prob. 7.2RCh. 6.3 - Prob. 7.3RCh. 6.3 - Prob. 8.1RCh. 6.3 - Prob. 8.2RCh. 6.3 - Prob. 8.3RCh. 6.3 - Prob. 9.1RCh. 6.3 - Prob. 9.2RCh. 6.3 - Prob. 9.3RCh. 6.3 - Prob. 10.1RCh. 6.3 - Prob. 10.2RCh. 6.3 - Prob. 10.3RCh. 6.3 - Prob. 11.1RCh. 6.3 - Prob. 11.2RCh. 6.3 - How would a torn calcaneal tendon affect movement...Ch. 6.3 - Prob. 1.1SRCh. 6.3 - Prob. 1.2SRCh. 6.3 - Prob. 1.3SRCh. 6.3 - Prob. 1.4SRCh. 6.3 - Prob. 1.5SRCh. 6.3 - Prob. 1.6SRCh. 6.3 - Prob. 1.7SRCh. 6.3 - Prob. 1.8SRCh. 6.3 - Prob. 2.1SRCh. 6.3 - Prob. 2.2SRCh. 6.3 - Prob. 2.3SRCh. 6.3 - Prob. 2.4SRCh. 6.3 - Prob. 2.5SRCh. 6.3 - Prob. 2.6SRCh. 6.3 - Prob. 2.7SRCh. 6.3 - Prob. 2.8SRCh. 6.3 - Prob. 2.9SRCh. 6.3 - Label each of the indicated muscles that move the...Ch. 6.3 - Prob. 3.2SRCh. 6.3 - Prob. 3.3SRCh. 6.3 - Prob. 3.4SRCh. 6.3 - Prob. 3.5SRCh. 6.3 - Prob. 3.6SRCh. 6.3 - Prob. 3.7SRCh. 6.3 - Prob. 3.8SRCh. 6 - Prob. 1CRQCh. 6 - Prob. 2CRQCh. 6 - Prob. 3CRQCh. 6 - Prob. 4CRQCh. 6 - Prob. 5CRQ
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