Name Dorsal interossei (foot)Pronunciation (DOR-sal In-ter-OSS-e-eye) Origin/Proximal Attachment Adjacent sides of metatarsals 1- 5 Insertion/Distal Attachment 1st interossei - Medial side of proximal phalanx of second toe Action/Relevance Abducts toes 2-5 (at MTP joints) 2nd-4th interossei – Lateral sides of second to fourth toes Innervation Lateral plantar nerve (S2, 3) Flexes toes 2-5 (at MTP joints) | 
