Hip & Thigh powerpoint Flashcards
What class and type of joint is the SI joint?
Diarthrodial; gliding (planar) type synovial joint
What class and type of joint is the sacroischial joint?
Amphiarthrodial; Fibrous, non synovial, syndesmosis
What ligaments form boarders of the greater and lesser sciatic foramen?
Sacrotuberous lig and sacrospinous lig
What class and type of joint is the sacrococcygeal joint?
Amphiarthrodial; secondary cartilaginous joint, symphysis
What is the border for the true and false pelvis?
The arcuate line; above is false, below is true
How do you tell the difference between a male and female pelvis?
- Angle of pubic arch – female wider
- Pelvic inlet – female larger
- Sacrum – female less curved
- Obturator foramen – female oval, male round
- Iliac ala – female wider and shallower
What structures pass through the greater sciatic notch?
- Superior gluteal nerve and vessels
- Piriformis muscle
- Inferior gluteal nerve and vessels
- Sciatic nerve
- Nerve to superior gemellus and obturator internus muscles
- Nerve to inferior gemellus and quadratus femoris muscles
- Pudendal nerve and vessels
- Posterior femoral cutaneous nerve
* Note structures which are above and below the piriformis muscle (n.s to posterior thigh, leg and foot)
What articulates with the head of the femur within the acetabulum?
Lunate surface
What passes through the lesser sciatic notch?
- Obturator internus muscle
- Nerve to obturator internus muscle
- Pudendal nerve and vessels (Note these also travel through the greater sciatic notch)
passageway for obturator nerve and vessels as they pass through the obturator foramen
Obturator groove
Where is the attachment of ligamentous trees (lig of the head of the femur)?
Acetabular notch
attaches to the edges of the notch and completes the articular surface of the acetabulum
Transverse ligament
Name the structures which pass over the pelvic brim to the lower extremity
- Tendon of the iliacus muscle
- Tendon of the psoas major 3. muscle
- Femoral Nerve, Artery and Vein
- Lateral femoral cutaneous nerve
- Lymph vessels
What are the boundaries of the femoral triangle?
- Superior: Inguinal lig
- Medial: Medial border of adductor longus (IN triangle)
- Lateral: Medial border of sartorial (OUTside triangle)
Name the structures that make up the femoral triangle from medial to lateral
- Adductor longus muscle
- Pectineus muscle
- Iliopsoas muscle
Name the contents of the femoral triangle from medial to lateral
- Femoral v.
- Femoral a.
- Femoral n.
What levels is the sciatic nerve? where does it split into the common fibular and tibial nerves?
L4-S3; usually about ½ way down the thigh
What is the most common relationship between the piriformis m. and the sciatic n.?
The whole sciatic nerve passes inferior to the piriformis muscle as it enters the gluteal region; n. is most lateral structure emerging inferior to the m.
What are the structures medial to the sciatic nerve?
inf. gluteal nerve, pudendal nerve, and various vessels
In 12% of cases, the sciatic nerve splits into 2 divisions before entering the gluteal region. Where do the two divisions pass and what is its clinical significance??
- Tibial: below piriformis
- Common fibular: through piriformis
tightness in piriformis may result in pinching of common fibular n.
In .5% of cases, the sciatic nerve splits into 2 divisions before entering the gluteal region. Where does the two divisions pass and what is its clinical significance?
- Tibial: below piriformis
- Common fibular: above piriformis
person is at higher risk of n. damage to common fib n. due to an injection
Pit in head of femur; attachment of the ligamentous teres
Fovea capitis
Pit on medial surface of greater trochanter; Insertion of obturator externus muscle
Trochanteric fossa
Where does the iliofemoral ligament (Y-lig of bigelow) and pubofemoral lig attach?
anterior surface of the femur
In the intercondylar fossa of the femur, the attachment of ACL is to [anterior/ posterior] and upper [medial/ lateral] wall.
Posterior; lateral
In the intercondylar fossa of the femur, the attachment of PCL is to [anterior/ posterior] and lower [medial/ lateral] wall.
Anterior; medial
