Muscles of the foot Layer 4

Question 1

List the Muscles contained within Layer 4 of the foot

Answer 1

Plantar Interossei

Dorsal Interossei

Question 2

Detail the Characteristics of the Dorsal Interossei Muscle

Answer 2

Dorsal Interossei

• Origin - Opposing sides of the Metatarsal bones 1-5
• Insertion - Bases of Proximal Phalanges of toes 2-5
• Innervation - Lateral Plantar Nerve
• Function - Abbduction of toes 2-5 at MTP Joints

Question 3

Detail the Characteristics of Plantar Interossei

Answer 3

Plantar Interossei
* Origin - Medial Sides of Metatarsals 3-5
* Insertion - Bases of Proximal phalanges digits 3-5
* Innervation - Lateral Plantar Nerve
* Function - Adduct toes 3-5 at MTP Joints