16: Musculo-neuro-vascular systems of medial compartment of the thigh Flashcards
Muscles of the medial compartment (5)
Adductor longus
Adductor brevis
Adductor Magnus
Gracilis
Obturator externus
Origin of adductor longus
Body of pubis inferior to pubic crest
Insertion of adductor longus
Middle 1/3 of linea aspera
Innervation of adductor longus
Obturator nerve
Action of adductor longus
Adducts hip
Origin of adductor brevis
Body + inferior pubic ramus
Insertion of adductor brevis
Pectineal line
Proximal medial lip of linea aspera
Innervation of adductor brevis
Obturator nerve
Action of adductor breves
adducts thigh
Modest contribution to flexion of hip
Portions of adductor Magnus
Adductor, hamstring
Origin of adductor portion of adductor magnus
Inferior ramus of pubis + ramus of ischium
Insertion of adductor portion of adductor
Gluteal tuberosity
Linea aspera
Medial supracondular line
Innervation of adductor portion of adductor
Obturator nerve
Actions of adductor portion of adductor
adducts thigh
Modest thigh flexion
Origin of hamstring portion of adductor Magnus
Ischial tuberosity
Insertion of hamstring portion of adductor Magnus
Adductor tubercle of femur
Innervation of hamstring portion of adductor Magnus
Sciatic nerve (tibial)
Action of hamstring portion of adductor Magnus
Modest thigh extension
Origin of gracilis
Body + inferior ramus of pubis
Insertion of gracilis
Superior part of medial tibia (pes anserinus)
Innervation of gracilis
Obturator nerve
Actions of gracilis
adducts thigh
Flexes leg at knee
Assists with medial rotation of leg
Origin of obturator externus
Anterior surface of obturator membrane + bony margins of obturator foramen
Insertion of obturator externus
Trochanteric fossa of femur
Action of obturator externus
Lateral rotation of thigh
Steadies head of femur in acetabulum
Boundaries of femoral triangle SAIL
Medial border of Sartorius
Lateral border of Adductor Longus
Inguinal Ligament
Floor of femoral triangle
Lateral: Iliopsoas
Medial: Pectinus
Roof of femoral triangle
Fasciae lata, subcutaneous tissue, skin
Contents of femoral triangle NAVEL
Femoral Nerve
Femoral Artery
Femoral Vein
Empty space
Lymphatics
Why is empty space important in femoral triangle
To accommodate the increased size of the femoral vessels
What is the femoral sheath?
A fibrous tunnel, deep to inguinal ligament
3 compartments of femoral sheath
Lateral: femoral artery
Intermediate: femoral vein
Medial: femoral canal, lymph
Where does the great saphenous vein drain into?
The common femoral vein
Where do femoral hernias occur
In the femoral canal
What is a hernia
When part of the body protrudes through its own cavity into a different one
What is a femoral hernia
Protrusion of small intestine, through femoral ring, through femoral canal, through saphenous opening in fasciae lata
Where to apply pressure in lower limb vascular emergency.
Femoral triangle
What is the adductor canal
Aponeurotic tunnel in middle 1/3 of thigh
Where does the adductor canal extend from
Inferior apex of femoral triangle
Where does the adductor canal extend to
Adductor hiatus
Function of adductor canal
Passageway for structures moving between anterior thigh and popliteal fossa
Anteromedial boundary of adductor canal
Sartorius
Anterolateral boundary of adductor canal
Vastus medialis
Posterior boundary of the adductor canal
Adductor longus + Magnus
Contents of adductor canal
Femoral artery + vein
Saphenous nerve
Nerve to vastus medialis
When femoral artery passes through adductor hiatus, becomes…
Popliteal artery
What drains the superficial thigh?
Great saphenous vein
What drains the deep thigh
Deep femoral vein
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