Exam 4 Muscles of the lateral leg compartment

Question 1

Muscles found here:

Answer 1

Fibularis longus

Fibularis bervis

Question 2

Both muscles are supplied by branches of the:

Answer 2

Superficial fibular nerve

Question 3

• Most suprficial
• Tendon passes behind the lateral malleolus, curves around the lateral border of the foot & passes obliquely across the plantar surface of the foot to its insertion (medial cuneiform)

Answer 3

Fibularis longus

Question 4

• Shorter muscle

- Tendon of insertion desends w/ the tendon of the fibularis longus behind the lateral malleolus

Answer 4

Fibularis brevis

Question 5

Origin of fibularis longus:

Answer 5

Shaft & head of the fibula

Question 6

Insertion of the fibularis longus;

Answer 6

Medial cuneiform; 1st metatarsal

Question 7

Actions of the fibularis longus:

Answer 7

1: Eversion of the foot
2. Plantar flexion of the foot
3. Supports the lateral longitudinal & transverse arches of the foot

Question 8

Origin of fibularis brevis:

Answer 8

Shaft of the fibula

Question 9

Insertion of fibularis brevis:

Answer 9

5th metatarsal

Question 10

Actions of the fibularis brevis:

Answer 10

1. Eversion of the foot
2. Plantar flexion of the foot
3. Supports the lateral longitudinal arch