-start 10.31.96-----------

coupla quick things.
radiologists haven't been around lately, so what we're doing is....we can 
either postpone all the rads to the next section, or we can go with the 
fact that the radiographical questions will be pretty easy. just 
superficially go over the radiographs....

re: exam. think about goat limb...one or two stations for front limb and 
one or two for the hind limb. don't spend a lot of time on the ruminant 
limb.

today: fresh limb. rich was wounded preparing these specimens. these 
fresh limbs won't keep over the weekend so we should really get intoo it 
today. don't dissect for vessels and nerves, dissect for mechanical 
structures.

when you skin it, notice the distal digital annular lig and the proximal 
digital annular ligament is a bubble - the digital synovial sheath. look 
also at the coffin joint capsule and the navicular bursa.

on Pii is the caudal complementary fibrocartilage pad that the straight 
sesamoidean lig goes to. look at the navicular bursa the digital sheath 
and the joint capsule of the coffin joint. see the distal navicular 
ligament. the navicular articulates with Pii and Piii. there is also a 
collateral navicular ligament coming down from the distal end of Pi to 
the top of the navicular bone. these collateral ligs are medial and 
lateral, and they actually become nearly cartilaginous as they meet 
eachother on the dorsal side of the navicular bone.

deep digital flexor tendon coming down enters the synovial sheath about 3 
fingers above the metacarpophalangeal joint. the synovial digital sheath 
goes all the way down to the insertion of the tendon on the navicular 
bone, and down there is also the navicular bursa and the joint capsule, 
so there are three synovial structures in the distal limb....

take a look at the sagittal section of the distal limb which has yellow 
around the digital sheath.