Hip Flashcards
Nerves of the hip
- Femoral nerve
- Obturator nerve
- Sciatic nerve
Anterior muscles of the hip
One joint muscles:
-Iliopsoas
Two joint muscles:
- Rectus femoris
- Sartorius
Medial muscles of the hip
One joint muscles:
- Pectineus
- Adductor Magnus
- Adductor Longus
- Adductor Brevis
Posterior muscles of the hip
One joint muscles:
- Gluteus maximus
- deep rotators (6)
Two joint muscles:
- Semimembranosus
- Semitendinosus
- Biceps femoris
Lateral muscles of the hip
One joint muscles:
- Gluteus medius
- Gluteus minimus
Two joint muscles:
-Tensor Fascia Latae
Hip motion
Flexion Extension Abduction Adduction External/internal rotation
Hip fractures
- Subcapital neck fracture
- Transcervical neck fracture
- Intertrochanteric fracture
- Subtrochanteric fracture
- Fracture of the greater trochanter
- Fracture of the lesser trochanter
Hip pathologies:
Iliotibial Band Syndrome (IBS)
-inflammation of the iliotibial band (ITB) causes outer knee pain and possible pain in the hip
Hip bone referred to as:
innominate bone (ilium, ischium, and pubis fused together)
Hip joint is very important in:
weight-bearing and walking activities
End feel of all hip joint motions, except flexion is:
firm because of tension in the capsule, ligaments, and muscles
End feel for hip joint flexion:
soft because of contact between the anterior thigh and the abdomen
Open-packed position for the hip is:
30 degrees of flexion, 30 degrees of abduction, and a small degree of lateral rotation
this is the position where maximal joint surface movement is possible
hip joint is a convex-on-concave articulation
Iliopsoas Muscle
O- iliac fossa, anterior and lateral surfaces of T12 through L5
I- lesser trochanter
A- Hip Flexion and trunk flexion?
N- iliacus portion: femoral nerve (L2, 3), Psoas major potion: L2, 3
Rectus Femoris
O- AIIS
I- Tibial tuberosity
A- hip flexion, knee extension
N- femoral nerve (L2, 3, 4)
Sartorius muscle
O- ASIS
I- Proximal medial aspect of tibia
A- combination of hip flexion, abduction, lateral rotation, and knee flexion
N- Femoral nerve (L2, 3)
Pectineus Muscle
O- superior ramus of pubis
I- pectineal line of femur
A- hip flexion and adduction
N- femoral nerve (L2, 3)
Adductor Longus Muscle
O- pubis
I- middle third of the linea aspera
A- hip adduction
N- obturator nerve (L2, 3, 4)
most superficial of the adductors
Adductor Brevis Muscle
O- pubis
I- pectineal line and proximal linea aspera
A- hip adduction
N- obturator nerve (L2, 3)
Adductor Magnus muscle
O- ischium and pubis
I- entire linea aspera and adductor tubercle
A- hip adduction
N- obturator and sciatic nerve (L2, 3, 4)
largest and deepest of the adductors
Gracilis muscle
O- pubis
I- anteromedial surface of proximal end of tibia
A- hip adduction
N- obturator nerve (L2, 3)
Gluteus Maximus
O- posterior sacrum and ilium
I- posterior femur distal to greater trochanter and to iliotibial band
A- hip extension, hyperextension, lateral rotation, (abduction also?)
N- inferior gluteal nerve (L5, S1, S2)
Largest muscle of the body
Semimembranosus Muscle (thin one on top of it-ish)
one of the 3 “hamstring muscles” that cover the posterior thigh
O- ischial tuberosity
I- posterior surface of medial condyle of tibia
A- hip extension and knee flexion
N- sciatic nerve - tibial division (L5, S1, S2)
Semitendinosus Muscle (thick one on cadaver)
one of the 3 “hamstring muscles” that cover the posterior thigh
O- Ischial tuberosity
I- anteromedial surface of proximal tibia
A- hip extension and knee flexion
N- sciatic nerve - tibial division (L5, S1, S2)
