A&P quiz 2

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  1. what makes up the appendicular skeleton?
    • pectoral girdle 
    • pelvic girdle 
    • lower limbs
    • upper limbs
  2. what bone articulates with the trunk and supports the upper limbs?
    pectoral girdle
  3. the pectoral girdle consist of what bones?
    • clavicles (2)
    • scapula (2)
  4. what is a glenoid cavity?
    articulates with head of humerus.
  5. the pelvic girdle consist of what bones?
    • os coxae (2):
    • ilium 
    • ischium
    • and pubis bones fuse in early adolescence
  6. the phalanges consist of how many bones?
    14 bones
  7. name the bones of the phalanges.
    • proximal phalanx
    • middle phalanx 
    • distal phlanx
  8. how many bones does the pollex (thumb) consist of? and name them.
    • 2 bones
    • proximal phalanx
    • distal phalanx
  9. what bone is most commonly fractured on the wrist?
  10. what bone is most commonly dislocated on the wrist?
  11. all 3 bones of os coxa (hip) contributes to its...

    (where 3 bones meet at the hip)
  12. what bones articulate with the ankle?
  13. name the classification of joints by function.
    • synarthrosis
    • amphiarthosis
    • diarthrosis
  14. classification of joint by function:

    immobile joint
  15. classification of joint by function:

    slightly mobile joint
  16. classification of joint by function:

    freely moveable joints
  17. name the classification of joints by structure.
    • fibrous
    • cartilaginous 
    • synovial
  18. classification of joint by structure:

    • bones held together by dense regular ct
    • ex: synarthrosis -  tooth to jaw; lamboid suture
    • ex: amphiarthrosis - articulation between ulna&radus, or tibia&fibula
  19. classification of joint by structure:

    • bones joined by cartilage
    • ex: synarthrosis - epiphyseal plate in growing bones
    • ex: amphiarthrosis - pubic symphysis, intervertibral disc articulation
  20. classification of joint by structure:

    • bones separated by fluid-filled cavity
    • ex: diarthrosis - plane, hinge, pivot, condylar, saddle, ball-and-socket joint
  21. fibrous joint:

    joints between teeth and maxilla and mandible; synarthroses
  22. fibrous joint:

    joints between skull and bones; synarthroses
  23. fibrous joint:

    joints between parallel bones in the forearm and leg (radius and ulna, tibia and fibula); amphiarthroses
  24. accessory structures surround the joint; function in reducing friction and filling spaces.
    synovial joints
  25. synovial joint:

    a ______ is a sac outside most synovial joints where ligament, muscles, tendons, and/or rub; contains synovial fluid
  26. synovial joint:

    elongated bursae around tendons, particularly in confined areas (wrist and ankle) where tendons rub each other.
    tendon sheaths
  27. synovial joint:

    packing material; also provide some protection
    fat pads
  28. name the movement classes of synovial joint.
    • plane joint
    • hinge joint
    • pivot joint
    • ball-and-socket joints
    • saddle joint
    • condylar joints
  29. name the types of motion of synovial joints.
    • gliding motion 
    • angular motion
    • rotational motion
    • special motion
  30. list angular motions
    • flexion
    • extension
    • hyperextension
    • lateral flexion
    • abduction 
    • adduction
    • circumduction
  31. list rotational motions
    • lateral rotation
    • medial rotation
    • pronation 
    • supination
  32. list the special movements
    • depression vs elevation
    • dorsiflexion vs plantar flexion
    • inversion vs eversion 
    • protraction vs retraction
    • opposition
  33. connective tissue components:

    innermost layer that surrounds and electrically insulates each muscle fiber. (Areolar ct)
  34. connective tissue components:

    surrounds the fascicles. (Dense irregular ct)
  35. connective tissue components:

    surrounds the entire muscle. (Dense irregular ct)
  36. at the end of a muscle, the ct merge to form a fibrous ______, which attaches the muscles tot he bone, skin, or other muscle.
  37. muscle attachment:

    attached to the bone that is less mobile
  38. muscle attachment:

    more moveable point of attachment
  39. name the 2 types of myofilaments.
    • thick filament 
    • thin filament
  40. thick filament
    • fine protein myofilament composed of bundles of MYOSIN (about 11nm in diameter)
    • bind to thin filament and cause contraction
  41. thin filament
    • fine protein myofilament composed of ACTIN, troponin, and tropomyosin (about 5-6nm in diameter)
    • thick filaments bind to it and cause contraction
  42. dark bands that contains the entire myosin molecule and an over lapping portion of actin
    A Band
  43. light band that contains thin filaments but no thick filaments
    I Band
  44. light, central region of the A band where there are no thin filaments
    H zone (H band)
  45. a protein meshwork in the H zone that keeps the thick filaments aligned
    M line
  46. a protein structure in the middle of the I band that serves as the attachment site for one end of the thin filaments.
    Z disc (Z band)
  47. ______ is the region where the motor neuron comes into close proximity to the muscle fiber
    neuromuscular junction (NMJ)
  48. what are the components of NMJ?
    • synaptic knob
    • synaptic vesicles
    • motor end plate
    • synaptic cleft
    • ACh receptors
    • Acetylchlinesterase (AChE)
Card Set
A&P quiz 2
chapter 8,9,10
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