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Systemic Anatomy
Sacral Plexus
| Question | Answer |
|---|---|
| What are the spinal nerve roots for the Sacral Plexus? | L4,5,S1,2,3,4 |
| The Superior Gluteal Nerve is innervated by what spinal nerve root? | L4,5,S1 |
| What muscles are innervated by the Superior Gluteal Nerve? | Gluteus minimus, medius mm. tensor fasciaed latae m. - these are abductors of the thigh |
| Name the nerve(s) that derive from the following Spinal Nerve Root: L5,S1,2 | Inferior Gluteal Nerve |
| Name the nerve(s) that derive from the following Spinal Nerve Root: L4,5, S1,2,3 | Sciatic Nerve |
| Name the nerve(s) that derive from the following Spinal Nerve Root: L4,5,S1,2,3 | Tibial Nerve |
| Name the nerve(s) that derive from the following Spinal Nerve Root: L4,5,S1,2 | Common Peroneal Nerve |
| Name the nerve(s) that derive from the following Spinal Nerve Root: S2,3,4 | Prudendal Nerve |
| The Inferior Gluteal nerve supplies motor innervation to which muscles? | gluteus maximus m. |
| The Sciatic nerve supplies motor innervation to which muscles? | hamstrings and adductor magnus m. |
| The Tibial nerve supplies motor innervation to which muscles? | semitendinsous and semimembranosus mm., long head of biceps femoris m., adductor magnus m., gastrocnemuius m., soleus m., plantaris, popliteus, tibialis posterior, flexor digitorum longus, flexor hallucis longus |
| The Common Peroneal nerve supplies motor innervation to which muscles? | biceps femoris short head |
| The Pudendal nerve supplies motor innervation to which muscles? | perineum, levator ani, external anal sphincter, external urethral sphincter |
| The S. Gluteal nerve supplies sensory innervation to what areas? | no cutaneous sensory branch |
| The I. Gluteal nerve supplies sensory innervation to what areas? | no cutaneous sensory branch |
| The Tibial nerve supplies sensory innervation to what areas? | skin of posterior leg |
| The Superficial Peroneal nerve supplies sensory innervation to what areas? | skin over the distal 1/3 of the anterior aspect of the leg and dorsum of the foot |
| The Deep Peroneal nerve supplies sensory innervation to what areas? | small area of skin on the dorsum of the foot between the first and second toes |
| The Pudendal nerve supplies sensory innervation to what areas? | skin of the penis and scrotum in male; clitoris, labia majora and minora and vagina in female |
| The superficial peroneal nerve supplies motor innervation to which muscles? | peroneus longus, peroneus brevis - evert foot and plantar flex foot |
| The Deep Peroneal nerve supplies motor innervation to which muscles? | tibialis anterior, extensor hallucis longus, extensor digitorum, peroneus tertius |
| What nerve is known as the largest nerve in the body and what spinal nerve does it come from? | Sciatic Nerve - L4,5,S1,2,3 |
| Which nerve has two nerves in one neural sheath? | Sciatic |
| Which nerve descends through the posterior thigh sending branches to the hamstrins and adductor magnus? | Sciatic |
| Which nerves provide motor to the foot and sensory to the skin over the plantar surface of the foot? | medial and lateral plantar nerves |
| Sensory portion of the medial and lateral plantar nerves? | skin of the posterior leg |
| Nerve commonly damaged in motorcycle or bicycle wrecks, due to trauma to lateral aspect of the upper or proximal fibula? | Common Peroneal |
| Can you dorsiflex the foot if you cut the deep peroneal nerve? | no |
| Nerve that is blocked during parturition for episiotomies | Pudendal nerve |
Created by:
kbalduf
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