Anterior and Medial Thigh Flashcards Preview

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Flashcards in Anterior and Medial Thigh Deck (46):
1

Compartments of the Thigh

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Proximal femur (anterior)

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Proximal femur (posterior)

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Muscles of the anterior thigh

Hip Flexors

Iliacus, Psoas major, pectineus, sartorius

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Muscles of the anterior thigh

Knee extensors

Quadriceps --

Rectus femoris

Vastus medialis

Vastus lateralis

Vastus intermedius

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Hip Flexors - Iliopsoas

Iliacus attachments

Iliac crest, fossa, ala of sacrum, anterior sacroiliac ligament to the psoas tendon and lesser trochanter

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Hip Flexors - Iliopsoas

Iliacus innervation

Femoral nerve (L2,3)

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Hip Flexors - Iliopsoas

Iliacus function

Flexes hip

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Hip Flexors - Iliopsoas

Psoas major attachments

T12-L5, IV discs, lumbar transverse processes to the lesser trochanter

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Hip Flexors - Iliopsoas

Psoas major innervation

Anterior rami L1-3

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Hip Flexors - Iliopsoas

Psoas major function

Flex hip

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Hip Flexors - Pectineus

Attachments

Superior ramus of pubis to the pectineal line of the femur

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Hip Flexors - Pectineus

Innervation

Femoral nerve (L2,3) occasionally a branch from obturator

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Hip Flexors - Pectineus

Function

Adducts and flexes hip, and assists with medial rotation

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Hip Flexors - Sartorius

Attachments

Anterior superior iliac spine to the superior part of the medial surface of the tibia

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Hip Flexors - Sartorius

Innervation

Femoral nerve (L2,3)

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Hip Flexors - Sartorius

Function

Flexes, abducts, and laterally rotates hip, and flexes knee

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Knee extensors - Quadriceps

Rectus femoris attachments

AIIS, ilium above acetabulum

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Knee extensors - Quadriceps

Vastus lateralis attachments

Greater trochanter and lateral linea aspera

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Knee extensors - Quadriceps

Vastus medialis attachments

Intertrochanteric line and medial linea aspera

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Knee extensors - Quadriceps

Vastus intermedius attachments

Anterior and lateral shaft of femur

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Knee extensors - Quadriceps

All quadriceps distal attachments

Quadriceps tendon then tibial tuberosity via patellar ligament

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Knee extensors - Quadriceps

Function

Extend knee (rectus femoris also flexes hip)

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Knee extensors - Quadriceps

Innervation

Femoral nerve (L2,3,4)

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Femoral Nerve

Route and branches

Deep to inguinal ligament, medial to ASIS, on tendon of iliopsoas m. 

Muscular branches - anterior thigh

Articular branches - hip and knee

Cutaneous branches - anteromedial thigh

Saphenous nerve is terminal cutaneous branch to anteromedial knee, leg and foot. 

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Muscles of the Medial Thigh

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Hip Adductors - Gracilis

Attachments

Body and inferior ramus of pubis to the superior medial surface of the tibia

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Hip Adductors - Gracilis

Innervation

Obturator (L2,3)

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Hip Adductors - Gracilis

Function

Adducts hip and flexes knee

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Hip Adductors - Adductor Longus

Function

Adducts thigh

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Hip Adductors - Adductor Longus

Attachments

Body of pubis to the middle third of the linea aspera

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Hip Adductors - Adductor Longus

Innervation

Obturator (L2,3,4)

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Hip Adductors - Adductor Brevis

Attachments

Body and inferior ramus of pubis to the pectineal line and proximal linea aspera

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Hip Adductors - Adductor Brevis

Innervation

Obturator (L2,3,4)

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Hip Adductors - Adductor Brevis

Function

Adducts thigh (may assist flexion)

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Hip Adductors - Adductor Magnus

Attachments

Ischiopubic ramus and Ischial tuberosity to the linea aspera, medial supracondylar line and adductor tubercle

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Hip Adductors - Adductor Magnus

Innervation

Obturator (L2,3,4) 

Hamstring part - Tibial part of sciatic nerve (L4)

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Hip Adductors - Adductor Magnus

Function

Adducts thigh

Adductor part flexes and hamstring part extends thigh

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Hip Adductors - Obturator Externus

Attachments

Margins of obturator foramen and obturator membrane to trochanteric fossa

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Hip Adductors - Obturator Externus

Innervation

Obturator nerve (L3,4)

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Hip Adductors - Obturator Externus

Function

Laterally rotates thigh

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Obturator nerve

Route and branches

Anterior divisions L2-4 root value

Runs along wall of pelvis to obturator canal. 

Anterior and posterior branches

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Adductor Canal

Position and contents

Apex of femoral triangle to the adductor hiatus

Femoral vesels travelling to poploteal fossa. Saphenous nerve before passing between sartorius and gracilis to supply skin of anteromedial knee, leg and foot

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Arterial Supply

Femoral artery

Continuation of external iliac artery

Runs from femoral triangle to adductor canal, to the adductor hiatus and becomes popliteal artery.

Supplies anterior and anteromedial thigh

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Arterial Supply

Profunda femoris

Branch of femoral artery. Posterior to adductor longus and branches into 3-4 perforations through adductor magnus. 

Medial and lateral circumflex femoral branches (usually)

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Arterial Supply

Obturator Artery

From internal iliac.

Through obturator foramen to medial compartment, to anteror and posterior branches.

Anterior branch goes to medial compartment muscles

Posterior branch goes to muscles attached to the ischial tuberosity