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5 Lesson 5.1: Muscle Tissue Categories and Functions Lesson 5.2: Skeletal Muscle Actions Lesson 5.3: The Major Skeletal Muscles Lesson 5.4: Common Injuries.

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Presentation on theme: "5 Lesson 5.1: Muscle Tissue Categories and Functions Lesson 5.2: Skeletal Muscle Actions Lesson 5.3: The Major Skeletal Muscles Lesson 5.4: Common Injuries."— Presentation transcript:

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2 5 Lesson 5.1: Muscle Tissue Categories and Functions Lesson 5.2: Skeletal Muscle Actions Lesson 5.3: The Major Skeletal Muscles Lesson 5.4: Common Injuries and Disorders of Muscles The Muscular System

3 Lesson 5.1 Muscle Tissue Categories and Functions Chapter 5: The Muscular System

4 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. categories –skeletal –smooth –cardiac functions –behavioral properties –tension and types of skeletal muscle contractions Muscle Tissue

5 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. skeletal –voluntary –striated smooth –involuntary –no striations cardiac –involuntary –striated –intercalated disks Muscle Tissue Categories

6 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. Muscle Tissue Categories

7 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. sarcolemma and endomysium surrounds the muscle fiber perimysium bundles groups of muscle fibers to make up a fascicle epimysium encloses several fascicles to make up a muscle aponeurosis connects muscle to other tissues Skeletal Muscle Organization

8 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. Skeletal Muscle Organization

9 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. True or False? 1. Smooth muscle is voluntary. 2. Cardiac muscle has branching fibers. 3. Smooth muscle is multinucleate. 4. Perimysium wraps fascicles to make a muscle. 5. Endomysium surrounds the muscle fibers. Review and Assessment

10 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. extensibility–stretch elasticity–snap back irritability–respond contractility–shorten Behavioral Properties of Muscle

11 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. tension and types of skeletal muscle contraction –agonist–moves bone –antagonist–opposes the movement of the agonist Muscle Tissue Functions

12 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. agonist contracts, antagonist relaxes Concentric Contraction

13 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. agonist contracts while lengthening, antagonist relaxes Eccentric Contraction

14 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. both agonist and antagonist contract Isometric Contraction

15 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. Match these words with 1 – 5 below: extensibility, elasticity, irritability, contractility, agonist, antagonist. 1. respond 2. opposes movement 3. stretch 4. shorten 5. causes movement Review and Assessment

16 Lesson 5.2 Skeletal Muscle Actions Chapter 5: The Muscular System

17 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. the motor unit skeletal fiber types muscular strength, power, and endurance Skeletal Muscle

18 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. group of muscle fibers under the control of one motor neuron The Motor Unit

19 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. acetylcholine crosses the synaptic cleft at the neuromuscular junction depolarization takes place on muscle fiber action potential begins Generating Action Potentials

20 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. sarcomeres shorten by actin filaments sliding along myosin filaments Contraction of the Sarcomeres

21 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. action potential always causes entire motor unit muscle fibers to contract all-or-none law Maximum Tension and Return to Relaxation

22 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. True or False? 1. An action potential causes one half of the fibers in the motor unit to contract. 2. Acetylcholine crosses the synaptic cleft at the neuromuscular junction. 3. The sarcomeres lengthen by myosin filaments sliding over actin filaments. Review and Assessment

23 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. slow-twitch fast-twitch –type IIa –type IIb Skeletal Muscle Fiber Types

24 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. parallel fiber arrangements –fusiform –bundled –triangular pennate fiber arrangements –unipennate –bipennate –multipennate Skeletal Muscle Fiber Architecture

25 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. rotary force that muscles can produce at a joint –the maximum weight you can lift is a measurement of muscular strength Muscular Strength

26 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. force x velocity –how fast you can sprint is a measurement of muscle power Muscle Power

27 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. muscle tension/time –how far you can run is a measurement of muscle endurance Muscle Endurance

28 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. Match these words with 1 – 5 below: muscle endurance, muscular strength, muscle power, Type I, Type IIb. 1. force x velocity 2. muscle tension/time 3. rotary force that muscles can produce at a joint 4. slow twitch, slow fatigue 5. fast twitch, fast fatigue Review and Assessment

29 Lesson 5.3 The Major Skeletal Muscles Chapter 5: The Muscular System

30 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. directional motions head and neck muscles trunk muscles upper limb muscles lower limb muscles The Major Skeletal Muscles

31 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. origin –fixed end of a muscle insertion –movable end of a muscle Skeletal Muscle Attachments

32 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. flexion extension hyperextension dorsiflexion plantar flexion Sagittal Plane Movements

33 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. abduction adduction inversion eversion radial deviation ulnar deviation Frontal Plane Movements

34 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. medial rotation lateral rotation pronation supination Transverse Plane Movements

35 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. circumduction opposition Multiplanar Movements

36 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. True or False? 1. Circumduction is a multiple plane movement. 2. Supination is a multiple plane movement. 3. The insertion is the fixed end of a muscle. 4. Extension is a sagittal plane movement. 5. Adduction is a frontal plane movement. Review and Assessment

37 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. Head and Neck Muscles

38 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. Trunk Muscles

39 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. Upper Limb Muscles

40 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. Lower Limb Muscles

41 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. Match these words with 1 – 4 below: head, trunk, upper limb, lower limb. 1. temporalis 2. brachioradialis 3. external oblique 4. biceps femoris Review and Assessment

42 Lesson 5.4 Common Injuries and Disorders of Muscles Chapter 5: The Muscular System

43 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. strain – overstretched muscle –grade I, II, III contusion–bruised muscle –myositis ossificans cramps – spasming muscle delayed onset muscle soreness – tear Muscle Injuries

44 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. tendinitis– inflamed tendon tendinosis– degeneration of a tendon Tendon Injuries Val Thoermer/Shutterstock.com

45 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. rotational injury at shoulder overuse of elbow shin splints whiplash Joint Injuries

46 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. muscular dystrophy hernia Muscle Disorders

47 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. True or False? 1. Tendinitis is muscle strain. 2. A contusion is a bruise. 3. Whiplash is a joint injury. 4. A hernia is a tendon injury. 5. A strain is an over stretch of a tendon. Review and Assessment


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