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12 Cards in this Set
- Front
- Back
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Collateral Ligaments
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MCL - medial collateral
LCL - lateral collateral |
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Meniscus
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Lateral meniscus does not attach to LCL
Medial Meniscus attaches to MCL |
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Cruciate Ligaments
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ACL - anterior cruciate lig.
PCL - posterior cruciate lig. |
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ACL vs. PCL
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ACL: arises from anterior interchondylar area of tibia, prevents hyperextension
PCL: arises from posterior interchondylar area and prevents hyperflexion |
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Arterial supply to leg
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Femoral artery
Deep Femoral Artery (supplies head of femur) Popliteal A. (behind the knee) Anterior Tibial (vascularizes ant. leg) Fibular (vascularizes lateral leg) Posterior Tibial A. (vascularizes post. leg) |
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Nerves to leg
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Sciatic Nerve innervates posterior thigh
Branches to form tibial nerve innervates posterior leg compartment Branches to form common fibular nerve which innervates the lateral compartment and anterior compartment of leg Anterior Compartment: Deep Fibular Lateral Compartment: Superficial Fibular |
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Superficial Posterior Compartment Muscles Action and Innervation
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Plantar Flexion (push foot down)
Tibial Nerve (S1 S2) |
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Muscles of Superficial Posterior Compartment
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(1) Gastrocnemius
(2) Soleus (3) Plantaris |
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Deep Posterior Compartment Muscles
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(1) Flexor Digitorum Longus
(2) Tibialis Posterior (3) Flexor Hallicus Longus |
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Lateral Anterior Compartment Muscles, Action, Innervation
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(1) Fibularis Longus
(2) Fibularis Brevis Action: Evertors of foot (turning sole of foot laterally) Innervation: Superficial Fibular Nerve |
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Anterior Compartment Muscles, Action, Innervation
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(1) Extensor Digitorum longus
(2) Extensor Hallucis Longus (3) Fibularis Tertius (4) Tibialis Anterior Action: Dorsiflexion (bring foot up) Innervation: Deep Fibular N. |
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Spinal Cord Roots
Femoral Nerve Obturator Nerve Superior/Inferior Gluteal Nerve Sciatic Nerve Tibial Nerve Superficial Fibular Nerve Deep Fibular Nerve |
(1) Femoral Nerve - L2,L3,L4
(2) Obturator Nerve - L2,L3,L4 (3) Superior Gluteal L4, L5, S1 (4) Inferior Gluteal L5, S1, S2 (5) Sciatic Nerve L4, L5, S1, S2, S3 (6) Tibial Nerve S1,S2 (7) Superficial Fibular L4 L5 S1 (8) Deep Fibular L4 L5 S1 |
