Muscles of the Medial Compartment of Thigh Flashcards
Main action of the pectineus?
- Adducts thigh
- Flexes thigh at hip joint
Name the muscles of the medial compartment of the thigh?
- Pectineus
- Adductor longus
- Adductor brevis
- Adductor magnus
- Gracillis
- Obturator externis
Main action of the adductor longus?
Adducts thigh
Main action of the adductor brevis?
Adducts thigh
Main action of the adductor magnus?
- Adductor part: adducts thigh
2. Hamstrings part: extends thigh
Main action of the gracilis?
- Adducts thigh
- Flexes leg
Main action of the obturator externis?
- Rotates thigh laterally
- Steadies head of femur in acetabulum
Innervation of pectineus?
Femoral n.
Innervation of adductor longus?
Obturator n.
Innervation of adductor brevis?
Obturator n.
Innervation of adductor magnus?
- Adductor part: obturator n.
2. Hamstrings part: sciatic n.
Innervation of gracilis?
Obturator n.
Innervation of obturator externis?
Obturator n.
Proximal attachment of the pectineus?
Sup. ramus of pubis
Distal attachment of the pectineus?
Pectineal line of femur
Proximal attachment of the adductor longus?
Body of pubis inf. to pubic crest
Distal attachment of adductor longus?
Middle 1/3 of linea aspera of femur
Proximal attachment of the adductor brevis?
- Body of pubis
- Inf. ramus of pubis
Distal attachment of adductor brevis?
- Pectineal line
- Proximal part of linea aspera
Proximal attachment of the adductor magnus?
- Adductor part:
- Inf. ramus of pubis
- Ramus of ischium - Hamstrings part:
- Ischial tuberosity
Distal attachment of adductor magnus?
- Adductor part:
- Gluteal tuberosity
- Linea aspera
- Med. supracondylar line - Hamstrings part:
- Adductor tubercle of humerus
Proximal attachment of the gracilis?
- Body of pubis
- Inf. ramus of pubis
Distal attachment of gracilis?
Sup. part of med. surface of tibia
Proximal attachment of the obturator externis?
- Margins of obturator foramen
- Obturator membrane
Distal attachment of obturator externis?
Trochanteric fossa of femur