Internal Oblique Muscle
Plantaris Muscle – Attachments, Actions & Innervation
Attachments of Plantaris Muscle: Origin & Insertion
Origin: (proximal attachments):
Inferior lateral supracondylar ridge of femur just above attachment of lateral head of gastrocnemius.
Insertion: (distal attachments):
Posterior calcaneus (tuberosity) via calcaneal tendon.
Actions of Plantaris Muscle:
a. Plantar flexes foot.
b. Flexes the leg at the knee.
Nerve to Muscle and its Spinal Segment:
Tibial nerve (L4, L5, S1).