Classification & Position

Question 1

Classify the Talocrural joint

Answer 1

Synovial, hinge joint - uniaxial with one degree of freedom

mortise & tenon joint

Question 2

Closed- packed postion of the talocrural joint

Answer 2

Dorsiflexion

Question 3

Define the subtalar joint and describe its position

Answer 3

• Synovial modified saddle joint
• Combines with midtarsal joint to allow inversion and eversion
• Position; distal to ankle joint

Question 4

Describe and define the mid-tarsal joint

Answer 4

S shaped - Synovial Ball + socket joint made up of talocalcaneonaviular joint and Calcaneocuboid joint

TCN joint = synovial ball and socket joint
CC joint= synovial plane joint

Question 5

Intertarsal joints

Answer 5

Synovial plane joints

Question 6

Tarsometatarsal joints

Answer 6

Synovial plane joints
(bases of MT’s 1,2,3 articulate with med, mid, lat cuneiform and 4+5 articulate with cuboid)
* Intermetatarsal joints are also synovial plane joints

Question 7

Metatarsophalangeal joints

Answer 7

Synovial ellipsoid joints with 2 degrees of freedom (flex/extend + add/abd)

Question 8

PIP + DIP (just IP in great toe)

Answer 8

Synovial hinge joints with one degree of freedom

flex/ext