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ISSA Unit 3 - Musculoskeletal anatomy and physiology

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    1: What is the musculoskeletal system?

    The body system responsible for biomechanical action and is comprised of skeletal muscle groups, connective tissue and bone/skeleton.

    2: What are the 4 functions of the skeletal system in our body?

    Structural Integrity/Biomechanical Function
    Production of blood
    Storage of fat and minerals
    Organ Protection

    3: What is the total number of bones in the following:

    overall skeletal system: 206
    axial skeleton: 80
    appendicular skeleton: 126

    ISSA Unit 3 - Musculoskeletal anatomy and physiology 1
    4: Label the above skeletal chart

    5: What are the three layers that constitute the bone?

    Compact, cancellous, osteoblast

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    6: What are the five bone categories?

    flat, long, short, irregular, and sesamoid

    7: What are the 6 joint categories?

    pivot, hinge, saddle, plane, condyloid, and ball-and-socket

    8: Label the joints in this chart

    ISSA Unit 3 - Musculoskeletal anatomy and physiology 2

    9: What is a “tendon?”

    Fibrous connective tissue joining muscle to bone.

    10: What is a”joint?”

    The separation between two or more corresponding bones, configured to allow appropriate movement and connected by ligaments.

    11: Explain the role of the muscular system in our bodies

    Produce movement and maintain position

    12: What are the 3 types of muscles in the body?

    skeletal
    cardiac
    smooth

    13: Fill in the chart below:

    ISSA Unit 3 - Musculoskeletal anatomy and physiology 3

    ISSA Unit 3 - Musculoskeletal anatomy and physiology 4

    14: Fill in the following diagrams:

    ISSA Unit 3 - Musculoskeletal anatomy and physiology 5
    ISSA Unit 3 - Musculoskeletal anatomy and physiology 6
    ISSA Unit 3 - Musculoskeletal anatomy and physiology 7
    ISSA Unit 3 - Musculoskeletal anatomy and physiology 8
    ISSA Unit 3 - Musculoskeletal anatomy and physiology 9

    15: What is”origin?”

    Origin is the fixed attachment point of muscle to bone via tendon connection

    16: Define “insertion”

    Insertion is a dynamic attachment point of muscle to bone via tendon and changes with muscle contraction

    17: Mark the insertion and origin of the rectus abdominis muscle

    Indicate origin with an “O” and insertion with an “I.” Indicate the intended action on the line provided below.

    ISSA Unit 3 - Musculoskeletal anatomy and physiology 10
    intended action : spinal flexion

    18: Mark the insertion and origin of the triceps brachii muscle

    Indicate origin with an “O” and insertion with an “I”. Indicate the intended action on the line provided below. (Hint Refer to Unit 8 if you have trouble with intended action.)

    ISSA Unit 3 - Musculoskeletal anatomy and physiology 11

    19: Mark the insertion and origin of the pectoralis major muscle

    Indicate origin with an “O” and insertion with an “I.” Indicate the intended action in the line provided below. (Hint: Refer to Unit 8 if you have trouble with intended action.)

    ISSA Unit 3 - Musculoskeletal anatomy and physiology 12

    20: Mark the insertion and origin of the latissimus dorsi muscle

    Indicate origin with an “O” and insertion with an “I.” Indicate the intended action in the line provided below. (Hint; Refer to Unit 8 if you have trouble with intended action.)

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    ISSA Unit 3 - Musculoskeletal anatomy and physiology 13
    intended action:

    21: Mark the insertion and origin of the deltoid muscle

    Indicate origin with an “O” And insertion with an “I.” Indicate the intended action in the line provided below. (Hint: Refer to Unit 8 if you have trouble with intended action.)

    ISSA Unit 3 - Musculoskeletal anatomy and physiology 14
    lntended action:

    22: Mark the insertion and origin of the trapezius muscle

    Indicate origin with an “O” And insertion with an “I.” Indicate the intended action in the line provided below. (Hint: Refer to Unit 8 if you have trouble with intended action.)

    ISSA Unit 3 - Musculoskeletal anatomy and physiology 15

    23: Mark the insertion and origin of the rotator cuff muscles

    Indicate origin with an “O” and insertion with an “I.” Indicate the intended action in the line provided below. (Hint: Refer to Unit 8 if you have trouble with intended action.)

    ISSA Unit 3 - Musculoskeletal anatomy and physiology 16

    24: Mark the insertion and origin of the quadriceps muscles

    Indicate origin with an “O” and insertion with an “I.” Indicate the intended action in the line provided below. (Hint: Refer to Unit 8 if you have trouble with intended action.)

    ISSA Unit 3 - Musculoskeletal anatomy and physiology 17
    Muscle: Rectus femoris
    intended action: hip flexion, knee extension


    Muscle: Vastus medialis
    intended action: Knee extension


    Muscle: Vastus lateralis
    intended action: knee extension


    Muscle: Vastus intermedius
    intended action: knee extension

    25: Mark the insertion and origin of the hamstring muscles

    Indicate origin with an “O” and insertion with an “I.” Indicate the intended action on the lines provided below. (Hint: Refer to Unit 8 if you have trouble with intended action.)

    ISSA Unit 3 - Musculoskeletal anatomy and physiology 18
    Muscle: Biceps femoris
    intended action: Extension of the hip, flexion of the knee, internal rotation of the knee


    Muscle: Semitendinosus
    intended action: Extension of the hip, flexion of the knee, internal rotation of the knee


    Muscle: Semimembranosus
    intended action: Extension of the hip, flexion of the knee, internal rotation of the knee

    26: Complete the chart below to explain skeletal muscle contraction

    ISSA Unit 3 - Musculoskeletal anatomy and physiology 19

    27: What are the six major muscle fiber arrangements?

    Fusiform arrangement
    Upennate
    Bipennate
    Multipennate
    Triangular
    Parallel

    28: Determine the muscle fiber arrangements below with examples.

    ISSA Unit 3 - Musculoskeletal anatomy and physiology 20
    ISSA Unit 3 - Musculoskeletal anatomy and physiology 21

    29: What are the 4 categories of muscle fibre types and their nature?

    Type I, Type IIa, Type IIx and Type IIc

    30: What is hypertrophy in relation to the training effect?

    Hypertrophy is the anabolic response of muscle protein synthesis catalyzed by resistance training or a general adaptation to increased mechanically resistive forces in daily life. it results in increased muscle mass.

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    ISSA Unit 3 - Musculoskeletal anatomy and physiology 22
    ISSA Unit 3 - Musculoskeletal anatomy and physiology 23
    ISSA Unit 3 - Musculoskeletal anatomy and physiology 24

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