Anatomy Forelimb, II

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Anatomy Forelimb, II
2011-03-05 23:09:15

Anatomy Forelimb, II
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  1. Bnoes of the shoulder joint:
    • Glenoid Cavity of Scapula
    • Head of the humerus
  2. 95% of lameness problems occur ____
    below the carpus
  3. Shoulder Joint Lacks:
  4. What allows the shoulder joint to glide?
    The head of the humerus is larger than the glenoid cavity
  5. Ligaments of the shulder?
  6. What stabilizes the shoulder?
    • Tendons of the...
    • Supraspinateus
    • Infraspinatus
    • Subscapularis
    • Teres Minor
    • Bicep Brachii
  7. Shoulder Joint is normally flexed at ___
  8. Flexion of joint provides...
    Concussion Mechanism
  9. Bones of the Cubitol Joint:
    • Condyle of Distal Humerus
    • Fovea Capitis of Radius
    • Trochlear Notch of the Ulna
  10. Classification of Cubital/Elbow Joint:
    • Compound
    • Synovial
    • Hinge (gingylmus)
  11. Ligaments of the Cubital Joint
    • Medial and Lateral Collateral
    • (Medial is branched)
  12. Where does the medial collateral lig, of the cubital joint, extend to?
    • Distal to interosseus space of the radius= Long Branch
    • Medial Tuberosity of the radius= Short Branch
  13. Where are injections given within the cubital joint?
    Cr and Ca to the lateral collateral Lig
  14. The Carpal Joint is classified as
    • Synovial
    • Compound
    • Hinge (ginglymus)
  15. Carpal Joint VS Tarsal Joint
    Carpal joint is simpler
  16. Where is the Joint Capsule of the Carpus thickened?
    Dorsal and Palmar Sides
  17. What forms the carpal canal?
    Palmar surface of the Carpal Joint Capsule
  18. Where does the Carpal Joint Capsule extend?
    Into the Acessory Lig of the DDF
  19. Synovial Sacs of the Carpus: *
    • Antebrachiocarpal
    • Middle Carpal
    • Carpometacarpal
  20. Which of the carpal synovial sacs communicate? *
    • Middle Carpal Sac and
    • Carpometacarpal Sac
  21. Which of the Carpal Synovial Sacs is the largest? *
    Antebrachiocarpal Sac
  22. Ligaments of the Carpus:
    • Medial & Lateral Collateral
    • Accessory Carpal Ligs
    • Mult Short Ligs
  23. What provides stabilization to the Carpal Joint?
    Accessory Carpal Bone Ligaments
  24. How does the carpus aid in concussion absorption?
    Several bones
  25. Movements of the carpus? *
    Flexion and Extension
  26. The carpus can ___ up to 90 degrees *
  27. Most of the movement of the carpal joint, resides between...
    • Antebrachial and
    • Middle Carpal Joints
  28. What inhibits movement within the carpometacarpal Joint?
  29. Within the Carpal joint, there is little *
    Adduction and Abduction
  30. What predisposes horses to injury of their carpal joint? *
    At flexion, the two proximal joints open
  31. Upon flexion the carpus, the ____ & ____ become available for easy injections *
    • Radiocarpal Sac
    • Middle Carpal Sac
  32. 1st and 2nd joints to be injured in the forelimb: *
    • 1st: Fetlock Joint
    • 2nd: Coffin Joint
  33. Most Stressed Joint:
    The fetlock Joint
  34. The fetlock is classified as
    • Synovial
    • Hinge
  35. Bones of the Fetlock Joint:
    • Distal end of the metatarsal/cannon bone
    • Phalanx end of the 1st phalanx
    • Proximal Sesamoid
  36. Fracture of ____ = "Cry First" *
    Proximal Sesamoid Bone
  37. Which bones frequently fracture? *
    • Proximal Sesamoid
    • Cannon (metacarpal)
    • Carpal Bones
  38. The proximal Sesamoid has no direct articulation with... *
    the proximal phalanx
  39. Distention of the Fetlock Joint Capsule => *
    • Articular Windgalls
    • Wind Puffs
    • Galls
  40. Where is the fetlock joint capsules injected?
    On the projection btw. the cannon bone and interosseus m, on the palmer side
  41. The Fetlock Joint Capsule is thick on the ____ side *
  42. Changes of the Interosseus with age: *
    • Foal= little muscle
    • Adult= entirely tendinous
  43. The interosseus m inserts on the _____ and detaches an _____ to the_____ *
    • abaxial surface of prox sesamoid bones
    • oblique, dorsal branch (extensor slips)
    • common digital extensor tendon
  44. Functions of the sesamoidean ligaments:
    • Support Fetlock
    • Prevent hyper-dorsal extension (when foot hits ground)
    • Limit Flexion by the DDF (when limb on ground and joint is extended)
  45. Ligaments of the distal sesamoid:
    • Straight Sesamoidean Lig
    • Oblique Sesamoidean Lig
    • Deep/Cruciate Sesamoidean Lig
    • Short Sesamoidean Lig
  46. What prevents buckling forward of the pastern?
    • Oblique Sesamoidean Lig
    • SDF tendon
  47. What Supports the fetlock Joint?
    • Distal Sesamoidean Lig
    • Interosseus
  48. Of the Fetlock Collateral Ligaments, which are stronger
    The Deep layers of both the lateral and medial collateral Lig
  49. Where is the injection site of the fetlock?
    Between cannon and interosseus
  50. Damage to ____ => fetlock sinks
  51. Damage to ____ => fetlock SLIGHTLY sinks, not grounded
  52. Damage to ____ => Complete grounding/collapse of the fetlock
  53. Cahanges of the coffin bone with age
    Hyaline Cartilage -> Fibrocartilage in adult
  54. How does the elbow become fixed?
    Weight, acting through the radius, distalward
  55. In the hindlimb, what makes up for a lack of accessory ligaments?
    Attachment of the SDF to point of the hock