The major flexor of the thigh that also keeps the trunk from falling backwards when erect is the
A)gluteus maximus.
B)sartorius.
C)iliopsoas.
D)adductor group.

Question

Quizplus · Accepted Answer

The iliacus and psoas major muscles form the iliopsoas, which is the primary flexor of the thigh at the hip joint. Because of its attachment to the lumbar vertebrae and the pelvis, it also helps maintain an erect posture by preventing the trunk from falling backwards.

The Major Flexor of the Thigh That Also Keeps the Trunk