1016MSC Study Guide - Midterm Guide: Weight-Bearing, Autoimmune Disease, Rheumatoid Arthritis
27 Jun 2018
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Review Questions and Concept Checks!
Joints!
Topic 1.4!
1. From where is synovial fluid derived?!
"Articular cartilage is made of 2 layers (outer fibrous layer and inner synovial layer)
Outer strengthens joint, inner produces synovial fluid!
2. Why are reinforcing ligaments so important in synovial joints?!
"Extracapsular ligament and intracapsular ligament in knee are reinforcing
ligaments. Extracapsular helps prevent medial/lateral movements, intracapsular prevent
sliding of tibia on fibula!
3. Compare circumduction of the thumb with circumduction of the fingers. Which is a
saddle joint and which is a condyloid joint?!
"Thumb: saddle (concave and convex parts of the bones allow adduction,
abduction, flexion, extension)!
"Fingers: condylar (oval articular surfaces, flexion and adduction)!
4. For the joints illustrated, write down the movements allowed (e.g. multiaxial, biaxial
etc..)!
# # #a. plane joint!
"Carpals!
# # #b. hinge joint!
"Elbow!
# # #c. pivot joint!
"Proximal radial joint!
# # #d. condyloid joint!
"Wrist!
# # #e. saddle joint!
"Carpometacarpals!
# # #f. ball and socket joint!
"Hip!
5. Cruciate ligaments: what are their names and what is the reasoning behind their
names?!
"Both intracapsular ligaments!
"Anterior cruciate ligament (ACL)!
"Posterior cruciate ligament (PCL)!
"Prevent sliding of tibia on fibula!
"!
9. Explain what is meant by the term “triad of injuries”. Use your knowledge of knee
anatomy to explain why the injuries commonly occur together.!
"Medial Colateral Ligament (MCL)!
"Medial meniscus!
"Anterior cruciate ligament !
"Commonly in sport, getting tackled or a puc to the lateral knee!
#!
Critical thinking
"!
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Document Summary
Articular cartilage is made of 2 layers (outer brous layer and inner synovial layer) Extracapsular ligament and intracapsular ligament in knee are reinforcing: why are reinforcing ligaments so important in synovial joints? ligaments. Extracapsular helps prevent medial/lateral movements, intracapsular prevent sliding of tibia on bula: compare circumduction of the thumb with circumduction of the ngers. Which is a saddle joint and which is a condyloid joint? abduction, exion, extension) Thumb: saddle (concave and convex parts of the bones allow adduction, Fingers: condylar (oval articular surfaces, exion and adduction) Carpals: for the joints illustrated, write down the movements allowed (e. g. multiaxial, biaxial etc) a. plane joint b. hinge joint c. pivot joint d. condyloid joint e. saddle joint. Prevent sliding of tibia on bula: explain what is meant by the term triad of injuries . Use your knowledge of knee anatomy to explain why the injuries commonly occur together. Commonly in sport, getting tackled or a puc to the lateral knee.
