Question

The iliacus and the psoas major muscles are collectively known as the ____________ muscle because they share a common insertion on the __________ of the femur.

Answer 1

Iliopsoas muscle

Lesser trochanter

Step-by-step explanation:

This two muscles, iliacus and psoas are the most important flexors of the hips. They have different origins: the psoas originates in vertebral bodies (T12, L1-L3) and the iliacus originates in the pelvis (iliac fossa).

Because of psoas origin, it also affects vertebral column position (specially at lumbar lordosis)