lecture 20/21

Question 1

the tibio-fibular joint is what?

Answer 1

gliding

Question 2

the joints of the ankle and foot:

what are they?

Answer 2

Tibiotalar joint

subtalar joint

talonavicular joint

calcaneocuboid joint

Question 3

the joints of the ankle and foot:

what are the lateral ligaments?

Answer 3

anterior talofibular lig.

posterior talofibular lig.

calcaneofibular lig.

Question 4

the joints of the ankle and foot:

what are the medial ligaments?

Answer 4

deltoid ligament

Question 5

stability of ankle joints:

what is the joint between tibia/fibula and talus ?

Answer 5

talocrural joint

specialized hinge joint

Question 6

muscles with primary actions at the ankle:

involved in dorsi flexors

Answer 6

tibialis anterior

fibularis (peroneus) tertius

Question 7

muscles with primary actions at the ankle:

plantar flexors

Answer 7

gastrocnemius
fibularis (peroneus) brevis and longus 
plantaris
soleus
tibialis posterior

Question 8

posterior crural muscles:

peroneus muscles are what?

Answer 8

fibularis muscles

• brevis
• longus
• tertius

Question 9

what does the maleoli do?

Answer 9

acts as pullys for muscle tendons

Question 10

when muscles with tendons found posterior to the medial malleolus contract the movement created what?

Answer 10

??

dorsi flexion
planter flexion

Question 11

two jointed muscles:

when are they most effective?

Answer 11

most effective when either origin or insertion is stabilized to prevent movment in the direction of the muscle when it contracts

**muscles exert greatest force when partially lengthened