Lecture 9 Flashcards
Pelvis primary ossification centres
Ilium
Ischium
Pubis
Fuse 15-25 yr
Pelvis structure
2 bones separated by sacrum and symphysis pubis
Bony ring held.by ligamentous complex
Made of ilium ischium and pubis
Pelvis soft tissue anatomy
False/greater pelvis - superior
True/lesser pelvis - inferior
Oblique line from symphysis pubis to l5/s1
Pelvic inlet
Superior
Ring shape or heart
Abdomen pelvis junction
50/60 degrees to coronal plane
Pelvic outlet
Diamond shape
Pelvis perineum junction
Horizontal plane
Anterior formed by inferior pubic rami posterior by ligaments
Male vs female pelvis
Male narrower, longer, heavy structure, heart inlet, ischial tuberosities closer
Pubic arch <90 degrees
Greater sciatic notch narrow
Long narrow curved sacrum
Ilium describe
Fan shape
Crest, fossa
Gluteal surface
ASIS, PSIS, AIIS
superior rim of acetabulum
Ilium attachments
Crest → quadratus lumborum
Fossa → iliacus
Gluteal surface -> gluteus medius/minimus
ASIS → sartorius
AIIS → rectus femoris
Ischium describe
Poster inferior part
Form most of obturator foramen and acetabulum
Tuberosity origin for hamstring
Spine = attachments
Pubic bone describe
Intro anterior part
C shape
FLATTENED MEDIALly = symphysis pubis
Primary attachment for adductor muscles
Describe symphysis pubis
Cartilaginous joint between pubic bones
Hyaline cartilage on articular surface
Joint by fibrocartilage
Widen in childbirth
Acronym for hip joint movement
FEAARRC
Hip joint info
capsule extends distal to base of NOF
3 sets of ligaments from 3 bones
Describe acetabulum
Combo of 3 bones
Deep cup
Rim of fibrocartilage called lobrum
Central acetabular fossa roughened
Peripheral articular surface hyaline cartilage, thickest superiorly
Inferior notch - passage of neurovascular
Femoral head
Round, smooth , hyaline cartilage
Central depression attachment for ligamentum teres
Blood supply through fovea
Why is femur prone to avascular necrosis
Complex blood supply
From branches of femoral artery
Insert base of neck extended into head
Describe greater trochanter
Extend anterior and posterior
Several ridges and depressions for attachments
(Gluteus medius/minimus, obturator and gemelli)
Lesser trochanter describe
Tendon of psoas and iliacus muscles
Anterior muscles (quadriceps femoris)
Vastus medialis, intermedius and lateralis
Rectus femoris
Medial muscles (adductors)
Adductor Magnus, longus, brevis
Pectineus
Gracilis
Posterior muscles (hamstrings)
Biceps femoris (long / short head)
Semimembranosus
Semitendinosus
Neurovascular structures
Large
Femoral artery, vein, nerve
Sciatic nerve between hamstrings
