Sesamoid bones

Question 1

The patella is the largest sesamoid bone. It is located cranial to the distal femur in the _______ tendon. It is ovoid in dogs and distally _____ in cats (it resembles a baseball cap). Articular cartilage is present on the ______ surface. It may develop from two (______) or more (______) centers of ossification. Centers sometimes do not fuse. (It is usually an incidental finding, more common in ____. ) This needs to be differentiated from a patellar fracture (fracture is usually accompanied by soft tissue swelling.

Answer 1

quadriceps

tapered

caudal

bipartite

multipartite

Question 2

Describe a sesamoid bone.

Answer 2

A small smooth, rounded structrue that form where tendons pass over a joint. They serve to reduce friction, increase mechanical effect, and protect and stabilize the tendon. Usually only one surface is articular. Periosteum is lacking (periosteal response will be absent).

Question 3

The patellar ligament is in the portion of the quadriceps tendon between the patella dn the _____ ____.

Answer 3

tibial tuberocity

Question 4

Dog body references

Answer 4