⭐️Dorsal Interossei

Question 1

Origin

Answer 1

Adjacent sides of the metatarsal bones

Question 2

Insertion

Answer 2

bases of the proximal phalanges (and dorsal digital expansion). The first is inserted into the medial side of the 2nd toe; the other three are inserted into the lateral sides of the 2nd , 3rd, and 4th toes.

Question 3

Function

Answer 3

• ABD of toes #2-4 at MTP joints
• FLEX of toes #2-4 at MTP joints
• EXT of toes #2-4 at MTP joints

Question 4

Nerve

Answer 4

Lateral plantar nerve