Biceps femoris: origin, insertion, action and innervation.
Gluteus Maximus – Attachments, Actions & Innervation
The gluteus maximus muscle is the largest and strongest of the three muscles that form your buttocks.
Attachments of Gluteus Maximus: Origin & Insertion
Insertion: (distal attachments)
a.Gluteal tuberosity of femur and iliotibial tract (or band).
Actions of Gluteus Maximus on the thigh (femur):
a. Extends thigh at the hip.
b. Laterally Rotates thigh at the hip.
c. Abducts thigh at the hip.
(The inferior fibers also stabilize the extended knee by tightening iliotibial tract).
Nerve to Muscle and its Spinal Segment:
a. Inferior gluteal nerve (L5, S1, S2).
An Overview of the Posterior Muscles of the Thigh:
Muscles That Act On The Posterior Thigh (From The Hip)