Final answer:
The anterior inferior iliac spine and the iliac crest are the two bony landmarks utilized to locate the rectus femoris muscle. These serve as attachment points for the muscle's heads: the direct head attaches to the AIIS while the reflected head relates to the iliac crest.
Step-by-step explanation:
The two bony landmarks that help to find the rectus femoris muscle are the anterior inferior iliac spine (AIIS) and the iliac crest. The rectus femoris is one of the four quadriceps muscles and is located in the front of the thigh. The AIIS serves as the attachment point for the direct or straight head of the rectus femoris, and the iliac crest is related to the reflected head. When you place your hands on your waist, the superior arching margin you feel is the iliac crest. The AIIS is located inferior to another prominent landmark, the anterior superior iliac spine (ASIS), which can be palpated at your anterolateral hip.
The other part of the thigh where attachments are made is the gluteal tuberosity of the femur, which is found on the posterior aspect. This roughened ridge extends inferiorly from the greater trochanter and becomes continuous with the linea aspera. However, the focus for the rectus femoris muscle's origin points remains on the pelvis with the AIIS and the iliac crest.