-
Bnoes of the shoulder joint:
- Glenoid Cavity of Scapula
- Head of the humerus
-
95% of lameness problems occur ____
below the carpus
-
Shoulder Joint Lacks:
Acromion
-
What allows the shoulder joint to glide?
The head of the humerus is larger than the glenoid cavity
-
Ligaments of the shulder?
None
-
What stabilizes the shoulder?
- Tendons of the...
- Supraspinateus
- Infraspinatus
- Subscapularis
- Teres Minor
- Bicep Brachii
-
Shoulder Joint is normally flexed at ___
115
-
Flexion of joint provides...
Concussion Mechanism
-
Bones of the Cubitol Joint:
- Condyle of Distal Humerus
- Fovea Capitis of Radius
- Trochlear Notch of the Ulna
-
Classification of Cubital/Elbow Joint:
- Compound
- Synovial
- Hinge (gingylmus)
-
Ligaments of the Cubital Joint
- Medial and Lateral Collateral
- (Medial is branched)
-
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
-
Where are injections given within the cubital joint?
Cr and Ca to the lateral collateral Lig
-
The Carpal Joint is classified as
- Synovial
- Compound
- Hinge (ginglymus)
-
Carpal Joint VS Tarsal Joint
Carpal joint is simpler
-
Where is the Joint Capsule of the Carpus thickened?
Dorsal and Palmar Sides
-
What forms the carpal canal?
Palmar surface of the Carpal Joint Capsule
-
Where does the Carpal Joint Capsule extend?
Into the Acessory Lig of the DDF
-
Synovial Sacs of the Carpus: *
- Antebrachiocarpal
- Middle Carpal
- Carpometacarpal
-
Which of the carpal synovial sacs communicate? *
- Middle Carpal Sac and
- Carpometacarpal Sac
-
Which of the Carpal Synovial Sacs is the largest? *
Antebrachiocarpal Sac
-
Ligaments of the Carpus:
- Medial & Lateral Collateral
- Accessory Carpal Ligs
- Mult Short Ligs
-
What provides stabilization to the Carpal Joint?
Accessory Carpal Bone Ligaments
-
How does the carpus aid in concussion absorption?
Several bones
-
Movements of the carpus? *
Flexion and Extension
-
The carpus can ___ up to 90 degrees *
flex
-
Most of the movement of the carpal joint, resides between...
- Antebrachial and
- Middle Carpal Joints
-
What inhibits movement within the carpometacarpal Joint?
Ligaments
-
Within the Carpal joint, there is little *
Adduction and Abduction
-
What predisposes horses to injury of their carpal joint? *
At flexion, the two proximal joints open
-
Upon flexion the carpus, the ____ & ____ become available for easy injections *
- Radiocarpal Sac
- Middle Carpal Sac
-
1st and 2nd joints to be injured in the forelimb: *
- 1st: Fetlock Joint
- 2nd: Coffin Joint
-
Most Stressed Joint:
The fetlock Joint
-
The fetlock is classified as
-
Bones of the Fetlock Joint:
- Distal end of the metatarsal/cannon bone
- Phalanx end of the 1st phalanx
- Proximal Sesamoid
-
Fracture of ____ = "Cry First" *
Proximal Sesamoid Bone
-
Which bones frequently fracture? *
- Proximal Sesamoid
- Cannon (metacarpal)
- Carpal Bones
-
The proximal Sesamoid has no direct articulation with... *
the proximal phalanx
-
Distention of the Fetlock Joint Capsule => *
- Articular Windgalls
- Wind Puffs
- Galls
-
Where is the fetlock joint capsules injected?
On the projection btw. the cannon bone and interosseus m, on the palmer side
-
The Fetlock Joint Capsule is thick on the ____ side *
palmar
-
Changes of the Interosseus with age: *
- Foal= little muscle
- Adult= entirely tendinous
-
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
-
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)
-
Ligaments of the distal sesamoid:
- Straight Sesamoidean Lig
- Oblique Sesamoidean Lig
- Deep/Cruciate Sesamoidean Lig
- Short Sesamoidean Lig
-
What prevents buckling forward of the pastern?
- Oblique Sesamoidean Lig
- SDF tendon
-
What Supports the fetlock Joint?
- Distal Sesamoidean Lig
- Interosseus
-
Of the Fetlock Collateral Ligaments, which are stronger
The Deep layers of both the lateral and medial collateral Lig
-
Where is the injection site of the fetlock?
Between cannon and interosseus
-
Damage to ____ => fetlock sinks
interosseus
-
Damage to ____ => fetlock SLIGHTLY sinks, not grounded
SDF
-
Damage to ____ => Complete grounding/collapse of the fetlock
-
Cahanges of the coffin bone with age
Hyaline Cartilage -> Fibrocartilage in adult
- How does the elbow become fixed?
- Weight, acting through the radius, distalward
-
In the hindlimb, what makes up for a lack of accessory ligaments?
Attachment of the SDF to point of the hock
|
|