Extremitas Inferior
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EXTREMITAS INFERIOR
SufitniMega Sari Sitorus
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Tulang-Tulang Yang Membentuk
Ekstremitas Inferior
Os Coxae Os Femur Os Patella Os Tibia – Fibula Os Tarsalia Os Metatarsal Os Phalanges
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OS Coxae
Pada bagian anterolateral terdapat
mangkuk sendi = fossa acetabuli,
bersendi dgn caput femoris
Pada pinggir fosssa acetabuli terdapat penebalan yang dilapisi oleh tulang
rawan
Facies Lunata
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FEMUR
Pada bgn atas terdapat caput femoris
Dibagian atas caput ini terdapat
fovea capitis yg merupakan tempat melekat ligamentum teres femoris
Bagian – Bagian Femur , antara lain :• Trochanter major , minor• Fossa trochanterica : tempat insersi otot bokong• Linea aspera
- labium interna : tpt origo otot –otot adductor
- labium eksterna ; origo m.biceps femoris -
caput brevis
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Tulang-Tulang Yang Membentuk-
Pergelangan Kaki ( ossa tarsalia)
- os calcaneus
- os tallus
- os naviculare pedis
- os cuneiforme I, II, III
- os cuboideum
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Perdarahan Pada Ekstremitas Inferior• A. Femoralis• A. Poplitea• A. Tibialis Anterior• A. Tibialis Posterior• A. Peronea
• V. Femoralis• V. Saphena magna• V. Saphena parva
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Frolich, Human Anatomy, Lower LImb
Posterior Thigh
• Gluts (gluteal nn.)• Maximus—extensor of thigh• Medius--pelvic tilt
• Lateral rotators (spinal nn.)• Piriformis syndrome
• Hamstrings (sciatic n.)• Biceps femoris• Semimembranous• Semitendinous
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Frolich, Human Anatomy, Lower LImb
Anterior thigh (femoral n.)
• Sartorius (Tailor’s muscle)
• Quads (four)• Rectus femoris
(crosses hip)• 3 vastus mm.
(vast--big)
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Frolich, Human Anatomy, Lower LImb
Medial compartment (obturator n.)
• Adductor muscles• Gracilis• Adductor
• Magnus• Longus• brevis
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Frolich, Human Anatomy, Lower LImb
Anterior Leg (deep fibular n.)
• Fibularis (peroneus) longus
• Extensor digitorum longus
• Extensor hallicus longus
• Tibialis anteriorus
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Frolich, Human Anatomy, Lower LImb
Lateral Leg (superficial fibular n.)
• Fibularis brevis/longus
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Frolich, Human Anatomy, Lower LImb
Posterior Leg (tibial n.)
• Gastrocs and soleus• Flexor digitorum
longus• Flexor hallucus
longus
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Frolich, Human Anatomy, Lower LImb
Intrinsics of foot
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Frolich, Human Anatomy, Lower LImb
Blood supply to lower limb
Internal Iliac Cranial + Caudal Gluteals= gluteals Internal Pudendal = perineum, external
genitalia Obturator = adductor muscles
External Iliac Femoral = lower limb
• Deep femoral = adductors, hamstrings, quadriceps
Popliteal (continuation of femoral) • Geniculars = knee• Anterior Tibial = ant. leg muscles, further
branches to feet• Posterior Tibial = flexor muscles, plantar
arch, branches to toes
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• Lumbar plexus (femoral nerve)
• Sacral plexus (sciatic nerve)
With leg out to side like quadruped, lumbar-anterior, sacral-posterior makes sense
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