EBK BASIC BIOMECHANICS
7th Edition
ISBN: 8220100409455
Author: Hall
Publisher: MCG
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Question
Chapter 6, Problem 5IP
Summary Introduction
To identify: The three muscles that have pennate fiber arrangements and explain the ways in which the functions of muscles are enhanced by this arrangement.
Concept introduction: Pennate fiber arrangement is a pattern of arrangement of fibers within a muscle, wherein the short fibers are attached to one or more tendons. This pattern of muscle fiber arrangement facilitates the muscle force production.
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7. Label the structures in the diagram to the right. Describe the function of each structure in muscle contraction.
Number
Name
Function
1
3
3
4
LEGO
6.
8.
9.
10
7
8.
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9.
10
3,
Muscle Shapes
Please label the following muscle types. In the numbers below the photo, list a muscle who is built in that
particular muscular shape.
Circular 2.convergent
SumulAipenhate
4Parallel
7Cnipenate
3Bipennate
5.
1. m Outh
2. pectovalis major
6.
3.
7.
4.
Defining Muscle Terms
Define the following terms in your own words. AL
Isometric:
Isotonic:
Prime mover
Antagonist:
1. Identify the longest muscles in the body and outline the two major joint it crosses
2. In terms of ions and charges, with a well label diagram describe:
a. Polarization
b. Depolarization
c. Repolarization
3. Name these parts of the neuromuscular junction:
a. The membrane of the muscle fiber
b. The end of the motor neuron
c. The space between neuron and muscle cell
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