anatomy of knee joint
TRANSCRIPT
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ANATOMY OF KNEE JOINT
PROBLEM BASED LEARNING (PBL)
PREPARED BY: MUHAMMAD ARIFF B. MAHDZUB
BACHELOR MEDICINE AND SURGERY (MBBS)
UNIVERSITY COLLEGE SHAHPUTRA, KUANTAN
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FEMUR
TIBIA
FIBULA
PATELLA
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Lateral- vastus lateralis
Medial vastus medialis
Apexligamentum patellae
Basequadriceps femoris
- Known as kneecap, is a thick, circular-triangular bone which
articulates with the femur and covers and protects the anterior
articular surface of the knee joint. It is the largest sesamoid
bone in the human body.
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FEMORAL NERVEOBTURATOR NERVESCIATIC NERVECOMMON PERONEAL NERVETIBIAL NERVE
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FEMORAL NERVE
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FEMORAL NERVE-Nerve of the anterior or extensor compartment of the thigh-Posterior divisions of anterior rami of L2,3,4-At midpoint of inguinal ligament, deep to it and lateral to femoral vessels-It breaks up into terminal branches at one inch below the ligament
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OBTURATOR NERVE
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OBTURATOR NERVEAnterior divisions of anterior rami of L2,3,4
BRANCHCES1. From Trunk
- To Obturator externus2. From anterior division
- Articular branch to hip joint-To adductor longus, gracilis, pectineus-Cutaneous branch communicate with medial - cutaneous nerve of thigh & saphenous nerve -To form subsatorial plexus
3.From posterior division-To adductor brevis, obturator externus
& adductor magnus-To knee joint
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SCIATIC NERVE
-Ventral rami of L4,5,S1,2,3-Branches in Thigh-To hamstrings & adductor magnus (Tibial)-Biceps (Common Peroneal Nerve)
-Danger side at Medial side
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COMMON PERONEAL NERVE
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COMMON PERONEAL NERVE
-lateral and smaller of the two terminal branches-arises from the posterior divisions of the sacral plexus (L4 to S2)-begins at the superior angle of the popliteal fossa-winding around the lateral surface of the neck of the fibular and ends by dividing into superficial & deep peroneal nerves in the substance of peroneus longus muscle
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TIBIAL NERVE-Medial terminal branch-arises from the anterior diovisions of the sacral plexus (L4 to S2)-Repressents the main continuation of the sciatic nerve