Question

What is the origin of the hip extension?

1) Ischial tuberosity
2) Upper part of the medial surface of the tibia
3) Attachment of the sartorius
4) Below the attachment of the gracilis

Answer 1

The origin of hip extension is the ischial tuberosity of the ischium bone.

Step-by-step explanation:

The origin of hip extension is the ischial tuberosity, which is the large roughened area of the inferior ischium bone. This serves as the attachment for the posterior thigh muscles and also carries the weight of the body when sitting.

The ischial tuberosity can be felt by wiggling your pelvis against the seat of a chair.