Muscles and ligaments Flashcards
Puborectalis
Points of attachment
- Body of pubis anteriorly
- Fibers of opposite side posterior to rectum
Pubococcygeus
Points of attachment
- Body of pubis and obturator fascia anteriorly
- Coccyx and anococcygeal ligament posteriorly
Iliococcygeus
Points of attachment
- Ischial spine and tendinous arch of pelvic fasical laterally
- Coccyx and anococcygeal ligament posteriorly
Coccygeus
Points of attachment
- Ishcial spine and sacrospinous ligament laterally
- Coccyx and S5 vertebra medially
Obturator internus
Points of attachment
- Pelvic surfaces of ilium and ischium; obturator membrane
- Greater trochanter of femur
Piriformis
Points of attachment
- Pelvic surface of 2nd -4th sacral segments; superior margin of greater sciatic notch and sacrotuberous ligament
- Greater trochanter of femur
Iliopsoas
Psoas major
- T12-L5 vertebral bodies, intervertebral discs between them and TVP of L1-L5
- Lesser trochanter of femur
Psoas minor
- Sides of T12 & L1 vertebrae and intervertebral disc
- Pectineal lines, iliopectineal eminence via iliopubic arch ligament
Iliacus
- Iliac crest, iliac fossa, ala of sacrum, anterior sacroiliac ligament and capsule of hip joint
- Tendon of psoas major and body of femur, inferior to lesser trochanter
Tensor fasciae latae (TFL)
Attachment points
- ASIS, anterior part of external lip of iliac crest
- anterolateral aspect of lateral tibial condyle via iliotibial tract
Quadriceps femoris
Rectus femoris
-AIIS and groove superior to acetabulum
Vastus lateralis
-Greater trochanter and lateral lip of linea aspera of femur
Vastus medialis
-Intertrochanteric line and medial lip of linea aspera of femur
Vasuts intermedius
-Ant. and lateral surfaces of shaft of femur
All attach to the base of patella and via patellar lig. to tibial tuberosity
Sartorius
Attachment points
- ASIS
- Superior part of medial surface of tibia
Gluteus maximus
Attachment points
- External surface of ala of ilium, including iliac crest, dorsal surface of sacrum and cocyx and sacrotuberous ligament
- Most fibers end in iliotibial tract which inserts into lateral condyle of tibia; some fibers insert on gluteal tuberosity of femur
Gluteus medius
Attachment points
- External surface of ilium between anterior and posterior gluteal lines
- Lateral surface of greater trochanter of femur
Gluteus minimus
Attachment points
- External surface of ilium between anterior and inferior gluteeal lines
- Anterior surface of greater trochanter of femur
Superior gemellus
Attachment points
- Ischial spine
- Trochanteric fossa
Inferior gemellus
Attachment points
- Ischial tuberosity
- Trochanteric fossa
Quadratus femoris
Attachment points
- Lateral border of ischial tuberosity
- Quadrate tubercle and intertrochanteric crest of femur
Semitendinosus
Attachment points
- Ischial tuberosity
- Medial surface of superior part of tibia
Semimembranous
Attachment points
- Ischial tuberosity
- Posterior part of medial condyle of tibia
Biceps femoris
Long head
- Ischial tuberosity
Short head
-Lateral lip of distal half of linea aspera and lateral supracondylar line
Both attach to lateral side of head of fibula
Pectineus
Attachment points
- Pecten pubis
- Pectineal line of femur
Adductor longus
Attachment points
- Body of pubis, inferior to pubic crest
- Middle third of linea aspera of femur
Adductor brevis
Attachment points
- Body and inferior ramus of pubis
- Pectineal line and proximal part of linea aspera of femur