Today we learn hip bone or hip joint. Now we know full details of the hip bone anatomy how many bones locate in here, artery, nerves, ligaments, articulation or structure and movement. So don’t late let’s go.
Hip Bone Structure
A few days ago i meet with Dr Tawhidul Islam [Physiotherapist] and discussed about the hip bone anatomy.
The hip bone joint is the articulation between the hemispherical head of femur and the cup shaped acetabulum of the hip bone.
Type of the hip bone
Ball and socket type of synovial joint.
Name for Hip Bone
Ilium: The ilium is the largest bone and uppermost of the pelvis. The ilium is divided into two parts, the body and ala; the separation is indicated on the top surface by a curved line, the arcuate line and on the external surface by the margin of the acetabulum.
Ischium: One of the three parts of the hip bone, which joins the ilium and pubis to form the acetabulum. Situated below the ilium and behind the pubis, it is one of these three bones whose fusion created the coxa. It is divided into three portions are-
- Body of Ischium: Contains a prominent spine which serves as the origin for gemellus superior.
- Superior ramus of the ischium: Serves as a partial origin for obturator externus and obturator internus.
- Inferior ramus of the ischium: Serves as a partial origin for gracillis and abductor magnus.
Pubis: The anterior and inferior part of the hip bone on either side, articulating with its fellow in the anterior mid line at the pubic symphysis; it is a separate bone in early life
Hip Bone Ligaments
Now we learn the ligaments of the hip joint are the iliofemoral, pubofemoral, ischiofemoral and transverse acetabular ligaments and the ligament the head of femur. So see below.
The ilillifemoral ligament: The iliofemoral ligament is shaped like an inverted Y and very strong, lying intimately and anteriorly blended with the capsule. Its apex is attached between the acetabular rim and anterior inferior iliac spine, its base to the intertrochanteric line.
The pubofemoral ligament: The pubofemoral ligament is triangular, its base attaching to the superior pubic ramus, obturator membrane, obturator crest and iliopubic eminence. It blends distally with the deep surface of the medial iliofemoral ligament and capsule.
The ischiofemoral ligament: The ischiofemoral ligament thickens the back of consist of three distinct parts and the capsule. Where it is attached posteroinferior to the acetabulum, behind the femoral neck to attach to the greater trochanter deep to the ilio- femoral ligament the superior ischiofemoral ligament, the central part and spirals superolaterally from the ischium. Some ﬁbers blend with the zona orbicularis. Medial and lateral inferior ischiofemoral ligaments embrace the posterior circumference of the femoral neck.
The transverse acetabulum ligament: The transverse acetabular ligament is labrum and continuous peripherally but does not, itself, possess any cartilage cells. Its strong ﬂat ﬁbres cross the acetabular notch forming a foramen through which nerves enter the joint and vessels.
The ligament of the head of femur: The ligamentum teres is a triangular and somewhat ﬂattened band. Its apex is attached anterosuperiorly in the fovea on the femoral head. Its base is attached principally to both edges of the acetabular notch. Which it blends with the transverse ligament. It also receives weaker contributions from the margins of the acetabular fossae. The ligamentum teres is varies in strength and ensheathed by synovial membrane. Occasionally the synovial sheath exists by itself in the absence of the ligament and rarely both ligament and sheath are absent. The ligament appears to become tense when the hip joint is adducted and semi-ﬂexed and appears to relax when the joint is abducted.
Artery of hip joint
- Common iliac artery
- External iliac artery
- Internal iliac artery
- Superior gluteal artery
- Inferior glureal artery
- Lateral circumflex femoral artery
- Medial circumflex femoral artery
- Deep artery of thigh
- 1st perforating artery
- Femoral artery
- Obturator artery
Nerve on hip joint
An anterior view of the nerve supply of the hip. do you know the surface anatomy of the body is semi-transparent and tinted red and green?
- Femoral nerve
- Obturator nerve
- Sciatic nerve
- Quadratus nerve
Hip Bone Exercises
Flexion: It is performed by the iliopaoas, rectus femoris, sartorius and adductor muscle.
Extension: It is performed by the gluteus maximus and hamstring muscles.
Abduction: It is performed by the gluteus medius, gluteus minimus, sartorius, tensor fasciae latae and piriformis muscle.
Adduction: It is performed by the adductor longus, adductor brevis, adductor magnus, pectineus and gracilis muscles.
Lateral rotation: It is performed by the piriformis, obturator internus, obturator externus, pectineus and gracilis muscles.
Medial rotation: It is performed by gluteus medius and minimums and tensor fasciae latae muscles.
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