Iliac tubercle
Encyclopedia
The iliac tubercle is located approximately 5 cm (2 in) posterior to the anterior superior iliac spine
on the iliac crest
in humans. The transverse plane that includes each of the tubercles (one from the left iliac tubercle and one from the right iliac tubercle) is called the transtubercular plane
. The origin of the iliotibial tract
is the iliac tubercle. The iliac tubercle is also the widest point of the iliac crest, and lies at the level of the L5
spinous process
.
Anterior superior iliac spine
The anterior superior iliac spine is an important landmark of surface anatomy. It refers to the anterior extremity of the iliac crest of the pelvis, which provides attachment for the inguinal ligament, and the sartorius muscle...
on the iliac crest
Iliac crest
-External links: - "Superficial muscles of the gluteal region and posterior thigh." - "Anterior Abdominal Wall: Osteology and Surface Anatomy " - "The Back, Posterior View" * *...
in humans. The transverse plane that includes each of the tubercles (one from the left iliac tubercle and one from the right iliac tubercle) is called the transtubercular plane
Transtubercular plane
A lower transverse line midway between the upper transverse and the upper border of the pubic symphysis; this is termed the intertubercular plane , since it practically corresponds to that passing through the iliac tubercles; behind, its plane cuts the body of the fifth lumbar vertebra.-External...
. The origin of the iliotibial tract
Iliotibial tract
The iliotibial tract or iliotibial band is a longitudinal fibrous reinforcement of the fascia lata. It is attached to the anterolateral iliac tubercle portion of the external lip of the iliac crest and to the lateral condyle of the tibia...
is the iliac tubercle. The iliac tubercle is also the widest point of the iliac crest, and lies at the level of the L5
Lumbar vertebrae
The lumbar vertebrae are the largest segments of the movable part of the vertebral column, and are characterized by the absence of the foramen transversarium within the transverse process, and by the absence of facets on the sides of the body...
spinous process
Spinous process
The spinous process of a vertebra is directed backward and downward from the junction of the laminae , and serves for the attachment of muscles and ligaments. In animals without an erect stance, the process points upward and may slant forward or backward...
.