MSK- hip and thigh anatomy Flashcards
What is the pelvic girdle and lower limb?
- lower limb forms a joint with the trunk at the pelvic girdle
what is the pelivc girldle formed from?
2 innominate (hip) bones
define pelvis?
term given to basin-shaped structure formed by the pelvic girdle and its associated sacrum
what are the 3 innominate (hip) bones?
- ilium
- ischium
- pubis
what is the acetabulum?
- lateral surface of innominate (hip bone)
- deeo depression
- forms the hip joint with the almost-sperical head of femur
what is the iliac crest?
upper flattened part of the ilium
what is the anterior superior iliac spine?
- anterior curve of the ilium
ilium forms what joint?
- a synovial joint with the sacrum
- sacroiliac joint
what is the sacroiliar joint?
a strong joint capable of absorbing the stresses of weight bearing
- tends to become fibrosed later in life
pubis location?
- what does it articulate with?
- anterior part of the innominate (hip bone)
- articulates with the pubis of the other hip bone at a cartilaginous joint called the symphysis pubis
Ischium location?
- inferior part of hip bone
what is the ischial tuberocities?
rough inferior projections of the ischia
- bear the weight of the body when seated
what is the longest and heaviest bone of the body?
- femur
femur location and characteristics of the head and neck?
- head is almost spherical and fits into the acetabulum of the hip bone to form the hip joint
- neck extends outwards and slightly downwards from the head to the shaft
- most within capsule of joint
what is the hip joint formed by?
- acetabulum and spherical head of femur
what ligament encloses the head and most of the neck of the femur?
capsular ligament
what is the acetabular labrum?
- a ring of fibrocartilage attached to the rim of the acetabulum
- stabilizes the joint without limiting the range of movement
- cavity is deepened by this
3 main external ligament of the hip?
- iliofemoral
- pubofemoral
- ischiofemoral
what is the localized thickenings of the joint capsule?
hip ligaments
felxion muscles of the hip? (3)
- psoas
- iliacus
- sartorius
extension muscles of the hip? (3)
- gluteus
- maximus
3, hamstrings
abduction muscles of the hip? (3)
- gluteus medius
- gluteus minimus
- sartorius
adduction muscles of the hip? (3)
adductor longus
adductor brevis
adductor magnus
medial rotation muscles of the hip? (3)
- gluteus medius
- gluteus minimus
- adductor group
lateral roation muscles of the hip? (3)
- gluteus maximus
- quadratus femoris
- obturators
group of four muscles lying on the front and sides of the thigh?
- rectus femoris
- threevasti: lateralis, medialis and intermedius
rectus femoris originates from?
the ilium and the 2 vasti from the upper end of the femur
Where do the ilium and the three vasti from the upper end of the femur pass over to be inserted into?
- pass over the front of the knee joint to be inserted into the tibia by the patellar tendon
