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PhrenicPhrenic nervenerveSupplies the Supplies the diaphramdiaphram
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18_06b18_06b Brachial PlexusBrachial Plexus MusculocutaneousMusculocutaneous n. n.
Flexors of the forearmFlexors of the forearm Radial n.Radial n.
Muscles of the back of the arm and forearmMuscles of the back of the arm and forearm Median n.Median n.
Flexors of forearm & muscles of lateral palm; skin of Flexors of forearm & muscles of lateral palm; skin of lateral 2/3 of palm & fingerslateral 2/3 of palm & fingers
UlnarUlnar n.n. Flexor Flexor carpicarpi unlnarusunlnarus & flexor dig. & flexor dig. profundusprofundus,; most ,; most
muscles of hand; skin on medial hand; little finger & muscles of hand; skin on medial hand; little finger & medial medial ½½ of ring fingerof ring finger
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Lumbar plexusLumbar plexus
Femoral n.Femoral n. Thigh flexors & extensors; skin over Thigh flexors & extensors; skin over
anterior & medial thigh , medial leg & footanterior & medial thigh , medial leg & foot
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Sacral plexusSacral plexus
Sciatic n.Sciatic n. 2 nerves 2 nerves –– tibialtibial & common & common peronealperoneal in in
one sheathone sheath Largest nerve in the bodyLargest nerve in the body
PudendalPudendal n.n.Muscles of perineumMuscles of perineum Skin of penis and Skin of penis and scotumscotumClitoris, labia Clitoris, labia majoramajora & vagina& vagina
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Dermatomes & Dermatomes & MyotomesMyotomes
DermatomeDermatome An area of the skin that provides An area of the skin that provides
sensory sensory imputimput from a pair of spinal from a pair of spinal nerves.nerves.
MyotomeMyotome All muscles innervated by motor All muscles innervated by motor
neurons from a single spinal segment. neurons from a single spinal segment. These usually underlie the dermatomes.These usually underlie the dermatomes.
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Spinal Nerve MnemonicSpinal Nerve Mnemonic
I ate one dozen live wives one Tuesday.I ate one dozen live wives one Tuesday.