Joints of the Hip Region

Anatomy 622 with Bersu at University of Wisconsin - Madison

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By: Karrie Abraham
Created: 2011-08-02
Size: 21 flashcards
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Pelvic Girdle formed by:

-sacrum and os coxae (ilium, ischium, pubis)

When does complete fusion of all three hip bones occur?

-around 16 years of age

Where does the hip bones articulate with the sacrum? How moveable is it?

-Sacroiliac joint

-very limited in movement

What is unique about the pelvis? How?

there are differences between female and male pelvis

-females: wider pelvis, greater "Q angle" at the knee

Two prominent Ligaments of pelvic girdle and Function:

1. sacrotuberous

2. sacrospinous

-both restrict posterior rotation of the sacrum between the two hip bones during standing

-attachment site for several gluteal muscles

-boundaries for greater and lesser sciatic foramina

What is between the pubic symphysis?

-a fibrocartilaginous disc

4 things for Hip Stability:

1. 3/4s of a sphere of femoral head

2. acetabular labrum deepens socket

3. long femur neck to attach muscles

4. strongest joint capsule

What are the 3 ligaments in the hip joint; when are they tense/ relaxed; purpose:

1. Iliofemoral

2. ischiofemoral

3. pubofemoral

-tense: standing

-relaxed: abduct and lateral rotated (original fetal position)

-Function: limit hyperextension

What is unique about the standing position? Why?

-little to no muscle effort is required

-Due to the tightening of all the hip ligaments

Iliofemoral ligament is also called the:

-Y ligament of Bigelow

-most important in maintaining standing

Round Ligament:

-only important during development

-carries small blood vessels

Boney Landmark that help identify the hip ligaments:

-Anterior Inferior Iliac Spine

-Y ligament of Bigalow is by the spine

-pubofemoral is below the line made at the spine

-ischiofemoral is above the line made at the spine

What is the advantage of the msucles crossing the hip joint and attaching some distance from the femoral head instead of at the head?

-gives the muscles greater leverage in producing movement at the hip joint

Shaft of the femur recieves a ______ blood supply by _________.

1. good

2. large artery passing through the nutrient foramen at the midpoint of the shaft and other smaller vessels

Femoral Neck gets the rich blood supply from:

-medial and lateral femoral circumflex

Femoral neck is one of the first areas of the body to show ________. Why?

-changes associated with osteoporosis

-arterial narrowing due to arteriosclerosis

Hip joint is ____ axial and _____ movements occur there

1. multiaxial

2. all (flexion/extension, abduction/adduction, and medial/lateral rotation

What is unique about the lower limb and the vertical axis?

-the true vertical axis does not run with the femur

-femur is naturally obliquely oriented

-vertical axis runs from femoral head to midway between the femoral condyles

Fixed and movable attachments of the lower limb are frequently _____>

reversed

A number of the lower limb muscles ______

produce movement at more than one joint

Several muscles of the lower limb are:

innervated by several nerves

About this deck

By: Karrie Abraham
Created: 2011-08-02
Size: 21 flashcards
Views: 0

About StudyBlue

“I have used this website for three exams, and I see a huge difference in my test results.”
Naj