STRUCTURAL AND FUNCTIONAL ORGANIZATION OF THE MUSCULOSKELETAL SYSTEM Flashcards

1
Q

What supports soft tissues and provides points of attachment for the tendons of most skeletal muscles?

A

Skeletal system

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2
Q

What provides protection for the internal organs from injury?

A

Skeletal system

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3
Q

What assists in movement when muscle contraction pulls on bones?

A

Skeletal system

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4
Q

What maintains mineral homeostasis by storing and distributing several minerals, especially calcium and phosphorus?

A

Skeletal system

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5
Q

True or False

Blood cell production occurs within the red bone marrow

A

True

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6
Q

What bone marrow stores triglycerides?

A

Yellow bone marrow

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7
Q

What are some examples of long bones?

Longer than wide

A
  1. Thigh
  2. Leg
  3. Arm
  4. Fingers
  5. Toes
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8
Q

What are some examples of short bones?

Almost cube shaped

A

Most wrist and ankle bones

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9
Q

What are some examples of flat bones?

Thin and extensive surface

A
  1. Cranial bones
  2. sternum
  3. ribs
  4. scapulae
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10
Q

What are some examples of irregular bones?

Do not fit in the other categories

A
  1. Vertebrae

2. Facial bones

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11
Q

What are the parts of a long bone?

A
  1. diaphysis
    a. shaft
  2. Epiphyses
    a. ends of the long bone
  3. Metaphyses
    a. contains the “growth plate” (epiphyseal plate)
    b. located between the shaft and end of bone
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12
Q

What are the bone building cells?

A

osteoblasts

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13
Q

What cells of the bone does the following:

  1. maintain bone
  2. exchange nutrients and waste with the blood
  3. these are osteablasts encased in the matrix they build
A

Osteocytes

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14
Q

What cells of the bone digest bone matrix for normal bone turnover?

A

Osteoclasts

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15
Q

What are the points of contact between bones?

A

Joints

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16
Q

Joints are classified into what based on their structure?

A
  1. fibrous
  2. cartilaginous
  3. synovial
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17
Q

What type of joint has no cavity and is just dense irregular connective tissue?

A

Fibrous joints

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18
Q

What type of joint has no cavity and the bones are held together by cartilage?

A

Cartilaginous joints

19
Q

What type of joints have a synovial cavity and many other components such as ligaments?

A

Synovial joints

20
Q

What are some examples of fibrous joints?

A
  1. sutures of the skull
  2. interosseous membrane
    a. dense irregular tissue between long bones
    1. radius-ulna
    2. tibia-fibula
21
Q

These are all included in the structure of what type of joint?

  1. synovial cavity
  2. articular cartilage
  3. ligaments
  4. synovial membrane
  5. accessory ligaments
  6. articular discs (menisci)
A

synovial joint

22
Q

What are fluid containing spaces of the synovial joints?

A

Synovial cavity

23
Q

What reduces friction between bones in relation to a synovial joint?

A

Articular cartilage

24
Q

What lies outside and inside the articular capsule of the synovial joint?

A

Accessory ligaments

  1. outside the capsule fiber and tibia collateral ligaments of the knee
  2. inside the capsule anterior and posterior cruciate ligaments of the knee
25
Q

What allows articulating bones to fit more tightly in synovial joints?

A

Articular discs (menisci)

26
Q

What are sacs that contain synovial fluid and are located where friction can occur (decrease friction)?

A

Bursae

27
Q

What kind of joints are convex to concave surfaces and allow flexion and extension only?

A

Hinge joints

28
Q

The following describes what within the skeletal system?

  1. composed of connective tissue
  2. found throughout the skeletal system
  3. function to connect bone to bone
  4. commonly injured by spraining or tearing
A

Ligaments

29
Q

The following describes what within the skeletal system?

  1. Tough band of fibrous connective tissue
  2. function to connect muscle to bone
    a. skeletal muscle contracts and moves bones via these
    b. very dense and more capable of withstanding tension
A

Tendons

30
Q

What covers the ends of bones, absorbs shock, and reduces friction?

A

Cartilage

31
Q

What decreases friction in areas where friction can occur with movement?

A

Bursa

  1. Between
    a. skin and bone
    b. tendons and bones
    c. muscles and bones
    d. ligaments and bones
32
Q

What are the different types of muscular tissue in the body?

A
  1. skeletal
    a. movement of bones/body parts
    b. stabilize body positions
  2. cardiac
    a. heart only
    b. develops pressure for blood flow
  3. smooth
    a. largely in GI tract
33
Q

What are the major functions of the muscle systems?

A
  1. produce body movements
  2. stabilize body positions
  3. store and move substances
  4. produce heat
34
Q

What specific movement decreases the angle between articulating bones?

A

Flexion

35
Q

What specific movement increases the angle in articulating bones?

A

Extension

36
Q

What movement is bending beyond 180 degrees, such as moving the humerus backwards behind an anatomical plane?

A

Hyperextension

37
Q

What is the movement of a bone away from the midline?

A

Abduction

38
Q

What is the movement of a bone toward the midline?

A

Adduction

39
Q

What is the movement of a distal end in a circle?

A

Circumduction

40
Q

What movement is when the bone revolves around its own longitudinal axis?

A

Rotation

41
Q

What is the movement of the soles of the foot medially?

A

Inversion

42
Q

What is the movement of the soles of the foot laterally?

A

Eversion

43
Q

What is known as the bending of the foot toward the dorsum (standing on heels)?

A

Dorsiflexion

44
Q

What is known as bending the foot toward the plantar surface (standing on toes)?

A

Plantarflexion