Navicular

Question 1

what ligaments are attached to the dorsal surface of the navicular?

Answer 1

1. dorsal cuneonavicular to medial cuneiform
2. dorsal cuneonavicular to intermediate cuneiform
3. dorsal cuneonavicular to lateral cuneiform
4. calcaneonavicular portion of the bifurcated ligament
5. tibionavicular portion of the deltoid ligament
6. dorsal cuboideonavicular
7. dorsal talonavicular

Question 2

a groove for which tendon separates teh navicular tuberosity from the plantar surface?

Answer 2

tendon of tibialis posterior

Question 3

what ligaments are attached to the plantar surface of the navicular bone?

Answer 3

1. spring ligament (plantar calcaneonavicular)
2. plantar cuboideonavicular ligament
3. 3 plantar cuneonavicular ligaments (one to each cuneiform)

Question 4

describe the lateral surface of the navicular. what attaches here?

Answer 4

1. lateral calcaneonavicular portion of the bifurcated ligament
2. interosseous cuboideonavicular ligament

Question 5

where is the navicular tuberosity located? and what attaches here?

Answer 5

(located on medial surface of the navicular)

tibialis posterior is attached to the tuberosity

Question 6

where is the os tibiale located?

Answer 6

(navicular tuberosity)

Question 7

which surface of teh navicular is convex? which is concave?

Answer 7

convex = anterior surface
concave = posterior surface

Question 8

describe the anterior surface of the navicular.

Answer 8

convex from side- to-side

has 3 facets that articulate with the proper cuneiforms

Question 9

which surface of the navicular contains a large oval/tear-shaped facet ?

Answer 9

posterior surface

it’s for articulation with the head of the talus

Question 10

which facet on the anterior surface of the navicular is the largest?

Answer 10

medial facet (for articulation with medial cuneiform)