Skeletal (W3.4.2) Flashcards
Metacarpal 1 of dogs and cats
reduced, bears no weight and is part of the dewclaw
Sesamoid of the dog and cat metacarpal
act as pulley over which tendon runs, don’t confuse with fracture
Equine metacarpal
only have metacarpal 2-4
splint bones are reduced metacarpal 2 and 4
Cannon bone
large metacarpal 3 that articulates with digit
Bucked shins
inflammation of the periosteum on the dorsal surface of the cannnon bone
Bovine metacarpals
3rd and 4th metacarpal are fused as the cannon bone
5th metacarpal is small
1st and 2nd ar missing
Digits of the dog and cat
Weight bearing on digits 2-5
Dewclaw (1st digit and metacarpal 1) (only P1 and P3)
Phalanges for digits 2-5 (proximal (P1), middle (p2), Distal (P3)
ungual process and horny claw
Bovine digits
Bear weight on digit 3 and 4 3 Phalanges (Proximal/P1/long pastern),(Middle/P2?short), (Distal/P3/coffin)
Equine Digits
digit 3 weightbearing 3 Phalanges (Proximal/P1/long pastern),(Middle/P2?short), (Distal/P3/coffin)
Navicular bone
between deep digital flexor tendon and P2 and P3
in horses
Ringbone
periosteal bone deposit in horses
High ringbone
Ringbone seen between P1 and P2 (pastern joint)
Low ringbone
Ringbone seen between P2 and P3 (Coffin joint)
Navicular diease
lameness from navicular bone or deep digital flexor tendon
Metacarpophalangeal joints
hinge joint
Proximal interphalangeal joint
between proximal (P1) and middle phalanges (P2)
Distal interphalangeal joint
Between middle (P2) and distal phalanges (P3)
Fetlock
joint between cannon and long pastern
Pastern
joint between long and short pastern
Coffin
joint between short pastern and coffin bone
Suspensory apparatus
suspensory ligament, proximal sesamoids, distal sesamoidean ligament
support fetlock joint
SDF
Superficial digital flexor
DDF
Deep digital flexor
Navicular bursa
located between navicular bone and deep digital flexor tendon; inflammation with navicular disease in forelimbs; pain eliminated by cutting digital nerve
