MHS Module 10 - thigh compartments p2

explain the OIA of the tensor fasciae latae:

origin: anterior, outer lip of crest of ilium

insertion: fascia lata

action: extends and stabilises knee

explain the OIA of the psoas major and minor:

origin: bodies, transverse process and dice of T12-L1

insertion: lesser trochanter of femur

action: hip flexion

explain the OIA of the iliacas:

origin: iliac fossa

insertion: lesser trochanter with psoas major

action: hip flexion

explain the OIA of the pectineus:

origin: pectineal line of pubis

insertion: pectineal line of femur

action: hip flexion

explain the OIA of sartorius:

origin: anterior superior iliac spine

insertion: medial surface of tibia

action: hip and knee flexion

what is the action of all muscles that are extensors of the knee:

extend the knee

explain the OI (origin and insertion) of quadriceps femuris:

origin: muscle bellies

insertion: tibial tuberosity, patella

explain the OI of the rectus femoris:

origin: straight AIIS and acetabular margin heads

insertion: patella

explain the OI of the vastus lateralis:

origin: intertrochanteric line, greater trochanter, gluteal tuberosity

insertion: patella

explain the OI of the vastus medialis:

origin: intertrochanteric line, spiral line, linea aspera

insertion: patella

explain the OI of the vastus intermedius:

origin: anterior and lateral aspects femoral shaft

insertion: patella

what is the action of all muscles in the medial compartment of the thigh:

adductors of hip

explain the OI of adductor longus:

origin: pubis

insertion: linea aspera

explain the OI of the adductor brevis:

origin: body and inferior ramus of pubis

insertion: upper linea aspera

explain the OI of adductor Magnus:

origin: inferior pubic ramus, ischial ramus and tuberosity

insertion: linea aspera and adductor tubercle

explain the OI of gracilis:

origin: pubis

insertion: medial surface tibia

what is the nerve supply for all muscles in the medial compartment:

obturator nerve

what is the femoral triangle: where, structure and contents

at upper end of thigh

floor: iliopsoas and pectinous

roof: fascia lata

contents: femoral vein, artery and nerve

what does the femoral triangle border:

sartorius muscle laterally

adductor longus medially

inguinal ligament forming base superiorly

what is the action of all muscles in the posterior compartment of the thigh:

extensors of hip and flexors

explain the OI of semitendinosus:

origin: ischial tuberosity

insertion: medial surface of tibia

explain the OI of semimembranosus:

origin: ischial tuberosity

insertion: medial tibial condyle, medial surface of tibia

explain the OI of biceps femoris:

origin: long head, ischia tuberosity, short head: linea aspera

insertion: head of fibula posteriorly

what os the nerve supply for all muscles in the posterior compartment:

sciatic nerve

explain the popliteal fossa:

region at the back of he knee

contains tibial and common fibular nerve and popliteal artery and vein

boundaries formed by hamstrings

explain the fascia of the leg:

deep fascia thickened to form retinaculae to hold tendons in place

attached to tibia, tibia, calcaneus, plantar aponeurosis

explain how tendons of each compartment of the thigh is covered:

posterior compartment: flexor retinaculum binds tendons

anterior compartment: extensor bands cover tendons

lateral compartment (of leg): fibular retinaculae covers tendons