Jan McElroy PT, MS, PCS 2009Do not copy without permission

The pelvis is made up of 2 innominate bones which meet:

• anteriorly at the pubic symphysis

and

•posteriorly at the sacrum

InnominateInnominatebonebone

Sacrum

InnominateInnominatebonebone

PubicSymphysis

The innominate bone is made up of 3 fused bones:

1.Ischium

2.Ilium

3.Pubis

Ilium

Ilium

IIschium pubis

Anterior view

Lateral view

Important landmarks to note are:

• Iliac Crest

• Anterior-superior iliac spine (ASIS)

• Posterior-superior iliac spine (PSIS)

• Ischial tubersosity (also called the I.T.s, the ischial “tubes”, or your “sit bones”

• Acetabulum

Lateral view

When we talk about the hip we are referring to the articulation between the acetabulum of the pelvis and the head of the femur.

The hip joint is a ball and ball and socket jointsocket joint.

The femur is the longest and strongest bone in the body.

The shape of the proximal portion of the femur changes dramatically from infancy to adulthood.

Femur-Anterior view

•Head

•Neck

•Greater trochanter

•Lesser trochanter

•Shaft

•Linea aspera

•Lateral condyle

•Medial condyle

Left Femur-Anterior viewLeft Femur-

Posterior view

Quadratus lumborum

Psoas Minor

Psoas Major

Anterior view

From: Novartis Interactive Atlas, Frank Netter artist

Note: the Psoas major and minor muscles span both the lumbar spine and the hip, therefore are 2 joint muscles.

Iliopsoas (Iliacus, psoas major & minor)

Quadriceps (rectus femoris, vastus medialis, vastus lateralis, vastus intermedialis

Sartorius

Anterior view right thigh

From: Novartis Interactive Atlas,

Frank Netter artistAnterior view

Adductor brevis

Adductor longus

Adductor magnus

gracilis

Anterior viewRight thigh

Anterio-medial view, right thigh

Gluteus maximus

Gluteus medius

Gluteus minimus

Hamstrings› Biceps femoris› Semitendinosus› semimembranosu

s

Iliotibital tract (also called the IT band) Posterior view

right thigh

1. Atlas of Human Anatomy, Frank Netter

2. McMinn’s Color Atlas of Human Anatomy, Abrahams, Hutchings, & Marks

3. Kinesiology of the Musculoskeletal System, Donald Neumann

4. Anatomy Coloring Book, Kapit & Elson