Anatomy I for V.T. - skeletal system (part deux)
About this set
Created by:
cwal419 on June 26, 2011
Subjects:
veterinary anatomy, veterinary assistant, veterinary technician, veterinary technology
Classes:
I wanna be a vet tech!, Veterinary Technology
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11 terms
Terms | Definitions |
|---|---|
 ligament | connects bone to bone |
| tendon | connects muscle to bone |
| collateral ligaments | ligaments associated with the stifle (knee) joint. medial and lateral collateral ligaments are stout, distinct thickenings of the joint capsule formed on each side of the joint. The collateral ligaments prevent medial to lateral displacement of the femur and the tibia relative to each other. Strain or rupture of the collateral ligaments is common. |
| cruciate ligaments | cranial and caudal cruciate ligaments are intracapsular (in canine they are considered intercapsullary - completely enclosed by joint capsule). They cross each other forming an "X" (cruciate=cross) Ligaments are named for their tibial attachments: 1) cranial cruciate ligament - cranial intercondylar area of tibia to caudomedial part of the lateral femoral condyle 2) caudal cruciate ligament - caudal edge of tibia to caudomedial part of medial femoral condyle |
| "Cranial drawer sign" | The tibia can be pulled cranially from beneath the femur, similar to pulling a drawer out of a desk. Rupture of the cranial cruciate ligament most common stifle joint ligament injury in dogs. |
| Femoral nerve dysfunction | quadricep paralysis, stifle collapse, limb disablement, skin of medial surface of limb deprived of sensation (saphonous n) |
| Obturator nerve | passes through obturator foramen to innervate adductor muscles of the pelvic limb |
| Obturator nerve dysfunction | greatest significance in larger species, when walking on smooth surfaces the limb tends to slip sideways |
| Sciatic nerve | arises from the sacral plexus and passes about halfway down the thigh where it divides into the common peroneal and tibial nerves |
| Sciatic nerve dysfunction | unable to actively flex stifle(s), hock flexes and extends passively, dropped hock, able to support weight on the limb, limb can bear weight because of unaffected quads fix stifle joint |
| Autonomous zones | The sciatic nerve autonoumous zone is for lesions proximal the the greater trhochanter and includes the zones for the fibular and tibular nerves. For sciatic nerve lesions caudal to the femur, the autonomous zone varies, depending on how many of its cutaneous branches are affected. Know zones of cutaneous innervation of the pelvic limb: medial, lateral & caudal aspects. CCF (caudal cutaneous femoral) Gf (genitofemoral), LCF (lateral cutaneous femoral), fibular, Sa (saphenous), Sci (sciatic), Tib (tibial) (review diagram in handouts) |
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