Lecture 14 The Thigh/Upper Leg EXAM 3

Insertion of the IT band is?

Gerdy's tubercle on tibia

What passes through the greater sciatic foramen?

piriformis superior gluteal a, v, n.

inferior gluteal a, v, n.

internal pudendal artery

pudendal n

posterior femoral cutaneous n

sciatic nerve

Branches off the superior gluteal a.?

superficial branch

deep branch

what does the superficial branch of the superior gluteal artery supply?

superior part of gluteus Maximus

what does the deep branch of the superior gluteal artery supply?

TFL, glute med, glute min

What does the inferior gluteal a. supply?

inferior portion of glute max

What is the key in differentiating the neuromuscular structures in the gluteal region?

location relative to piriformis

what does the superior gluteal nerve (L4-S1) innervate?

gluteus medius, gluteus minimus, TFL (runs with superior gluteal artery)

what does the inferior gluteal nerve (L5-S2) innervate?

gluteus maximus (runs with inferior gluteal artery)

What does the posterior femoral cutaneous n. (S1-S3) innervate?

Scrotum, labia, posterior thigh, + buttocks

The sciatic nerve complex gives rise to?

tibial nerve and common peroneal nerve

What does the pudendal nerve (S2-S4) innervate?

perineum, anus, external genitalia, scrotum, etc.

The Hip/Coxafemoral Joint is what type of joint?

synovial ball and socket

functions of the hip joint?

weight bearing and supports movements from upper and lower body

Superficial ligaments of the hip joint?

pubofemoral, iliofemoral, ischiofemoral

Function of the iliofemoral, ischiofemoral, + pubofemoral ligaments?

resists hyperextension of the thigh

function of the zona orbicularis

A "collar" around the the articulation to draw synovial fluid into the acetabulum. Also resists hyperflexion of the thigh.

Function of the transverse acetabular ligament

Continuation of the acetabular labrum to allow for smooth movement of the femur within the acetabulum

Function of the acetabular labrum?

Increases the depth of the acetabular fossa + acts as a suction to draw the head of the femur into the acetabulum

Fibroelastic fat function

acts as shock absorber and aids in preserving hyaline cartilage

Function of the ligament of the head of the femur/round ligament/ligamentum teres?

carries acetabular branch of obturator artery to supply blood to the head of the femur

Blood supply to the head and neck of the femur (anastomosis)?

Profunda Femoris/Deep femoral artery gives off (2)

1) lateral circumflex femoral a-->ascending branch-->retinacular aa

2) medial circumflex femoral a--> retinacular aa

Quadriceps tendon connects?

quadriceps muscle to patella

Patellar ligament connects?

patella and tibial tuberosity (bone to bone)

Fascia Lata is a continuation of?

Colles fascia

Fascia lata continues distally to?

crural fascia

Proximal IT band?

double layer that encloses TFL muscle

IT is the insertion for?

tendon of glute max and TFL

what are the muscles of the lateral compartment of the thigh?

TFL

muscles of the anterior compartment of the thigh? (7)

iliopsoas, sartorius, rectus femoris, vastus medialis, vastus lateralis, vastus intermedius, articularis genus

muscles of the medial compartment of the thigh? (5)

gracilis, pectineus, adductor longus, adductor brevis, adductor magnus

muscles of the posterior compartment of the thigh (3)

semitendinosus, semimembranosus, biceps femoris (long and short head)

What is the content of the femoral triangle? (6)

lateral femoral cutaneous n, femoral n, genitofemoral n, femoral a, femoral v, great saphenous v

Boundaries of the femoral triangle?

roof: fascia lata

superior: inguinal ligament

lateral: medial border of sartorius

medial: lateral border of adductor longus

floor: iliopsoas and pectineus

Deep to sartorius is?

adductor canal

what's in the adductor canal?

femoral a and v

adductor hiatus opens to?

popliteal fossa (vessels are now called popliteal a. and v.)

Lateral compartment of the thigh innervation and blood supply?

superior gluteal nerve and artery

Anterior compartment of the thigh innervation and blood supply?

femoral artery and nerve

Medial compartment of thigh muscles innervation and blood supply?

obturator artery and obturator nerve ** some dually innervated

*adductor Magnus= tibial and obturator

*pectineus= femoral and obturator

Posterior compartment of thigh muscles innervation and blood supply?

tibial nerve and deep femoral artery & its peripherating branches

*short head of biceps femoris= common peroneal n