ATTR 219 1st Edition Lecture 12PectiniusOrigin: iliopectineal line on superior pubic ramiInsertion: lesser trochanter to lineaasperaAction: adduction, flexion and internal rotation of hip/thighNerve: femoralArtery: medial femoral circumflex and obturatorGluteal RegionGluteus MaximusOrigin: posterior crest of ilium, posterior sacrum and coccyx, sacrotuberous ligamentInsertion: gluteal tuberosity of femur and tensor fascia lataeAction: strong extensor, upper fibers assist in abduction, lower fibers assist in adductionNerve: inferior glutealArtery: superior and inferior gluteal, first branch of profundafemorisGluteus MediusOrigin: outer surface of iliac crestInsertion: lateral surface of greater trochanter of femurAction: abduction of thighNerve: superior glutealArtery: deep branch of superior glutealThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.Gluteus MinimusOrigin: outer surface of iliac crest below origin of gluteus mediusInsertion: anterior border of greater trochanter on femurAction: abduction and internal rotation of thigh, may assist in flexion of hipNerve: superior glutealArtery: deep branch of superior glutealArteriesFemoral- continuation of external iliac artery-located in femoral triangle and changes name from external iliac artery to femoral at inguinal ligament-anterior and then goes deep and medial and comes out posterior – then referred to as popliteal-branches of femoral include profundafemoris- coming off profundafemoris is medial and lateral femoral circumflex-supply anterior thigh muscles, adductors and hip joint-superficial branches of femoral (that are still actually deep)- superficialepigastric- supplies lower part of abdominal wall - superficial circumflex iliac- skin of groin-external pudendal- skin of lower abdomen and external genitalia *pudendal always deals with genitalia*Obturator- branch of internal iliac artery in pelvis-enters thigh through obturator foramen along with obturator nerve-blood supply to bladder, ilium and adductor muscles and hip jointBursa of the HipTrochanteric bursa- located behind greater trochanter and deep to gluteus maximus and tensor fascia lataeIliopsoas Bursa- between joint capsule and iliopsoas muscle insertion in area of lesser trochanterSix Deep External RotatorsPriformisOrigin: anterior pelvic surface of sacrum and sacrotuberous ligamentInsertion: upper border of greater trochanter of femurAction: externally rotates hip/thigh and abducts thigh when thigh is flexedNerve: first and second sacralArtery: superior/inferior gluteal, internal pedendalGemellus SuperiorOrigin: outer surface of ischial spineInsertion: blends with tendon of obturator, internus into medial surface of greater trochanterAction: externally rotates hip/thighNerve: sacral plexusArtery: inferior glutealObturator InternusOrigin: inner aspect of pelvis, margins of obturator foramen, obturator fasciaInsertion: medial surface of greater trochanter of femurAction: external rotate hip and thighNerve: sacral plexusArtery: internal pedendal, superior glutealGemellus InferiorOrigin: proximal region of ischial tuberosityInsertion: same as gemellus superior- blends with tendon of obturator internus into medial surface of greater trochanterAction: externally rotates hip/thighNerve: sacral plexusArtery: inferior glutealObturator ExternusOrigin: outer margin of obturator foramen and rami of pubisInsertion: trochanteric fossa of femurAction: external rotate hip/thighNerve: posterior branch of obturator Artery: obturator and medial femoral circumflexQuadricepFemorisOrigin: lateral border of ischial tuberosityInsertion: anterior portion of greater trochanter and intertrochanteric lineAction: external rotates hip/thigh, adductsNerve: sacral plexusArtery: medial femoral circumflex*Remember P-GO-GO-Q from top to bottom*-piriformis-gemellus superior-obturator internus-gemellus inferior-obturator