Joints Of Lower Extremity

Question 1

Talocrural joint

Answer 1

Articulation of tibia and fibula with the talus

Synovial hinge type

More stable in dorsiflexion than plantar flexion, due to a wider talus bone anteriorly than posteriorly

Question 2

Where does the tibia articulate with the talus?

Answer 2

Two places

Inferior surface forms, the roof of the malleolar mortise transferring the bodies weight to the talus

Medial malleolus articulates with the medial surface of the talus

Question 3

Intrinsic ligaments of the ankle

Answer 3

Lateral collateral ligaments three ligaments that attaches to the lateral malleolus to the talus and calcaneus

Anterior talofibular ligament

Posterior talofibular ligament

Calcaneofibular ligament

Question 4

Anterior talofibular ligament

Answer 4

Runs from the lateral malleolus to the neck of the talus

Question 5

Posterior talofibular ligament

Answer 5

Runs from the lateral malleolus to the lateral tubercle of the posterior process of the talus

Question 6

Calcaneofibular ligament

Answer 6

Runs from the lateral malleolus to the lateral surface of the calcaneus

Question 7

Medial collateral ligaments

Answer 7

Deltoid ligaments

Consists of four parts that attach the medial malleolus to the talus calcaneus and navicular

Tibionavicular ligament
Anterior tibiotalar ligament
posterior tibiotalar ligament
tibiocalcaneal ligament

Question 8

Blood supply for the ankle

Answer 8

Malleolar branches of the fibular and anterior and posterior tibial arteries

Question 9

Information for the ankle

Answer 9

Nerves are derived from the saphenous, tibial, sural, and superficial and deep fibular nerves

Question 10

Important intertarsal joints

Answer 10

Subtalar or talocalcaneal joint

Transverse tarsal joint or Calcaneocuboid and Talonavicular joints

Question 11

Intertarsal joints, allow what movement

Answer 11

Inversion, and eversion of the foot

Question 12

Subtalar joint

Answer 12

Articulation of the talus and calcaneus

Synovial

Permits inversion and eversion of the foot

Question 13

Transverse tarsal or midtarsal joint

Answer 13

Two separate joints

Talocalcaneonavicular and calcaneocuboid

Question 14

Talocalcaneanonavicular

Answer 14

Synovial ball and socket

Plantar calcaneonavicular ligament or spring ligament

Question 15

Calcaneanonavicular ligament

Answer 15

Spring ligament

Band that extends from the sustentaculum tali to the posterior surface of the navicular bone

Plays an important role in maintaining a longitudinal arch of the foot

Question 16

Calcaneocuboid joint

Answer 16

Synovial
Long plantar ligament
Short plantar ligament or plantar calcaneocuboid ligament

Question 17

Long plantar ligament

Answer 17

Plantar surface of the calcaneus to the keyboard and second third and fourth metatarsal head

Forms a tunnel for passing tendons, and help support the longitudinal arch of the foot

Question 18

Short plantar ligament or plantar calcaneocuboid a ligament

Answer 18

Plantar surface of the calcaneus to the cuboid

Assist with longitudinal arch and joint support

Question 19

What supports the transverse tarsal joint dorsally?

Answer 19

Bifurcated ligament
dorsal Talonavicular ligament

Question 20

Bifurcated ligament

Answer 20

Calcaneocuboid
Calcaneonavicular

Question 21

What actions occur in the forefoot at the metatarsophalangeal and interphalangeal joints?

Answer 21

Flexion and extension

Question 22

All bones of the foot proximal to the metatarsophalangeal joints are united by what?

Answer 22

Dorsal and plantar ligaments

Question 23

The bones of the metatarsophalangeal and interphalangeal joints are united by what?

Answer 23

Lateral and medial collateral ligaments

Question 24

Blood supply for the tarsals and metatarsals

Answer 24

Medial and lateral plantar arteries from posterior tibial artery

Dorsalis pedis and Arcuate arteries from anterior tibial artery

Question 25

Innervation of the metatarsals and tarsals

Answer 25

Medial and lateral plantar nerves from tibial nerve

Medial and intermediate dorsal cutaneous nerves from superficial peroneal nerve

Deep peroneal nerve

Question 26

Navicular drop test

Answer 26

You have a patient sitting with her foot resting on the ground not with full weight, and you measure with a ruler from the navicular tuberosity to the floor

Then you have her stand with her full weight through her foot, and then re-measure the distance from the navicular tuberosity to the floor

If there’s a significant change, that indicates that there’s insufficiency or weakness, or laxity in the arches of the foot or a fallen arch