19

SKELETAl MUSCULAR SYSTEM / LOWER LIMB

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CN: The pateiiar ligament (G*) is colored gray but Ihe patella is left uncolored.

{1) Begin with the deep view ot the thigh and then complete the superficiai view (2) On the tar lott, color the visualized portions ot the quadnceps that are antagomsts to the hamstnng group. (3) Complete the action diagrarr.s along the right rnargm.

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ANTERIOR

VIEW

DEEP

SUPERFICIAL

Psoas

maicr

__ Psoas miner

Inguinal

ligament

lliopscas

Pectineus

Aoductor

longus

Knee

joint

Tibial

tuberosity

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*he sartorius ("tailor s" muscle, so-called because ot the role :• nis muscle in enabling a crcssed-legs sitting posturę) is a • e:<or and lateral rotator ot the nip joint and a tlexor ot the •nes joint, as you can infer trom its iltustrated attachments 'ńe quadrtceps femoris muscle arises trom four heads. The .astus mediatis and laterahs ansę trom the linea aspera on —e posterior aspect ot the temur; the </astus mtermedius anses trom the anterior femoral shaft Air four converge onto —5 superior aspect (basei ot the patella to form the pateiiar •er,don. Some tendon fibers continue over the pateiiar surface

tom the ligament beicw At the interior aspect (apexi ot the

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The tendon between the patella and the tibial tuberosity is called the pateiiar ligament. Rectus temoris. a strong hip joint flexor, is the only member ot quadriceps to cross that joint. Ouadriceps femoris is the only knee extensor. The signifi-cance ot its role beccmes crystal elear to those having experienced a knee injury; the muscles tend to atrephy and weaken rapidly with disuse and 'guad” exercises are essen-tial to mamtain structurai stability ot the joint. The 'liopsoas is the most powerful flexor of the hio having a broad thick muscle belly and attachmg at the lesser trochanter at the proximal end ot the temoral shatt Pecall Platę 50 for its

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