Muscular System I. Introduction A. Definition. 1. Muscle cells called fibers 2. Properties  Contraction, Conduction, Extensible, & Elasticity 3. Types.

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Presentation transcript:

Muscular System I. Introduction A. Definition

1. Muscle cells called fibers 2. Properties  Contraction, Conduction, Extensible, & Elasticity 3. Types  Skeletal, Smooth, & Cardiac Why?

B. Functions

1. Aid in Movement 2. Help maintain Posture 3. Produce body heat

II. Types of Muscle A. Skeletal 1. Fiber Organization

a. Layers or LevelsTendons Figure 9.1 & Table 9.1

2. Fiber Structure

a. General Characteristics Figure 9.2

a. General Characteristics Table 9.1 Table 9.1

a. General Characteristics Figure 9.5

b. Specific Characteristics Table 9.1 Table 9.1

b. Specific Characteristics Figure Table 9.1

b. Specific Characteristics Figure 9.3

3. Fiber Contraction

a. Requirementsi. Stimuli Figure 9.8

a. Requirementsi. Stimuli Figure 9.9

a. Requirementsi. Stimuli Figure 9.10

a. Requirementsii. Calcium Figure 9.11

a. Requirementsii. Calcium Figure 9.11

a. Requirementsii. Calcium Figure 9.12

a. Requirementsiii. ATP Figure 9.12

a. Requirementsiii. ATP Figure 9.19

a. Requirementsiii. ATP Figure 9.20

b. Description Figure 9.13

4. Fiber Performance

a. Muscle Twitch Figure 9.14a

a. Twitch Figure 9.14b

b. Graded Response Figure 9.15

c. Intensity vs. Tension Figure 9.16

d. Recruitment Figure 9.17

e. Isotonic vs. Isometric Figure 9.18

f. Slow Oxidative vs. Fast Oxidative vs. Fast Glycolytic

5. Fiber Location

a. General Terms i. Job = Agonists vs. Antagonists vs. Synergists vs. Fixators ii. Shape = Circular, Convergent, Parallel, Fusiform, & Pennate Levers = 1 st, 2 nd, & 3 rd class

b. Sites i. Duh?

II. Types of Muscle B. Smooth C. Cardiac

a. General Characteristics

a. General Characteristics

a. General Characteristics

a. General Characteristics

III. Problems A. Spasms, Strain, & Myalgia

B. Muscular Dystrophy C. Myasthenia Gravis

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