spinal nerve overview cervical plexus brachial plexus anterior branches of thoracic nerve
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Nervous system . Chapter 18 peripheral nerveous system. spinal nerve overview cervical plexus brachial plexus anterior branches of thoracic nerve lumbar plexus sacral plexus the correlate anatomical basement of the spinal nerve injury’s location - PowerPoint PPT PresentationTRANSCRIPT
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spinal nerve• overview• cervical plexus• brachial plexus• anterior branches of thoracic nerve• lumbar plexus• sacral plexus• the correlate anatomical basement of the spinal nerve in
jury’s location • the innervation of main joints all over the bodycranial nervevisceral nervous system
Chapter 18 peripheral nerveous system
Nervous system
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overview
cranial nerve
spinal nerve
visceral nerve
visceral nerve ( automatic nervous system)
sympathetic nerve
parasympathetic nerve
peripheral nerve
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gangliacranial gangliaspinal ganglia( dorsal root ganglion)visceral motor ganglion
nerve In peripheral nervous system, the fibers assemble as nerve.
endoneural membraneEndoneuriumlamellar sheathepineurium
medullary sheath: is composed of Sch’s processes by convoluted neurons of layers.
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the regeneration of peripheral nerve
the degeneration of nerve fiber anterograde degeneration retrogression degeneration
nerve growth factor nerve growth factor (NGF) brain-derived neurotrophic factor (BDNF) ciliary neurotrophic factor (CNTF) fibroblast growth factor (FGF)
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31 对anterior root—motorposterior root—nerve spinal ganglia
C 8 T 12 L 5 S 5 Co 1
Spinal cord overview (一 )the construction, subdivision and fiber ingredients
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Fiber ingredients somatic sensory fibervisceral sensory fibersomatic motor fibervisceral motor fiber
1.Meningeal branch2. communicating branch white communicating branch, gray communicating branch3. posterior branch medial branch, lateral branch, muscular branch , cutaneous branches4. anterior branches cervical plexus ,brachial plexus, lumbar plexus ,sacral plexus
the typical branches of spinal nerve
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anterior branches of C1-4
superficial cutaneous branches —the middle point of sternomastoid’s posterior border
cervical plexus
the composition and position of cervical plexus
branches of cervical plexus
1. lesser occipital nerve(C2)2. great auricular nerve(C2- C3)3. transverse nerve of neck(C2- C3) ( superficial cervical nerve)4. supraclavicular nerves(C3- C4)
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5. diaphragmatic nerve(C3- C5)
muscular branch dominate the muscle of deep layer, levator scapulae and infrahyoid muscles group
ansa cervicalis(loop of hypoglossal nerve)
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C5-8, anterior branches of T1scalene fissure
brachial plexus
the construction and position of brachial plexus
the branches of brachial plexus
1. long thoracic nerve(C5- C7) serratus anterior 2. thoracodorsal nerve(C6- C8) latissimus dorsi muscle3. axillary nerve(C5- C6) 4. musculocutaneous nerve(C5- C7)
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5. median nerve(C6- T1) 6. ulnar nerve(C8,T1 ) 7. radial nerve(C5- T1 )
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M median nerveU ulnar nerveR radial nerve
the innervation of skin of hand
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dorsal nerve of scapula(C4-C5) suprascapular nerve(C5-C6) subscapular nerve(C5-C7)medial pectoral nerve(C8,T1) lateral pectoral nerve(C5-C7) medial brachial cutaneous nerve(C8,T1 ) medial antebrachial cutaneous nerve(C8,T1 )
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T2 sternal angleT4 mammary papillaT6 xiphoid processT8 costal archT10 umbilicusT12 the middle point of the line of umbilicus and pubic symphysis
12 pairs the 1st to 11th intercostal nerve the 12th subcostal nerve
the anterior branch of thoracic nerve
cutaneous branches lateral cutaneous branch anterior cutaneous branch
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The segmental distribution of anterior branch of thoracic nerve
T2 areal is at the level of sternal angleT4 areal is at the level of mammary papillaT6 areal is at the level of xiphisternal synchondrosisT8 areal is at the level of costal arch( between umbilicus and xiphoid process)T10 areal is at the level of umbilicusT12 areal is at the level of middle point of line of umbilicus and pubic symphysis
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T12 L1-3.4
lumbar plexus the constitution and position of lumbar plexus
the branches of lumbar plexus 1. iliohypogastric nerve(T12,L1)2. ilioinguinal nerve(L1) 3. lateral femoral cutaneous nerve(L 2 - 3 ) 4. femoral nerve(L 2 -L4) 5. obturator nerve(L 2 -L4) 6. genitofemoral nerve(L1,L 2 )
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L4.5 S1-5 Co1
sacral plexus the constitution and position of sacral plexus
the branches of sacral plexus 1. superior gluteal nerve(L4,L5,S1 )2. inferior gluteal nerve(L5,S1,S2) 3. posterior femoral cutaneous nerve(S1-S3) 4. pudendal nerve(S2-S4)
superior gluteal nerveinferior gluteal nerve
posterior femoral cutaneous nerve
pudendal nerve
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5. sciatic nerve(L4 L5 S1-S3) (1) tibial nerve(L4,L5,S1-S3) medial plantar nerve lateral plantar nerve
medial plantar nerve
lateral plantar nerve
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(2) common peroneal nerve(L4, L5, S1, S2) superficial peroneal nerve deep peroneal nerve
deep peroneal nerve
superficial peroneal nerve
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the related anatomical basement of the injury location of spinal cord
the segmental regularity of the distribution of spinal cord
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the muscles detected for clinical affection and its innervation
the motor related muscles for level diagnosis of upper limb nerveand its innervation
motor the name of muscles nerve nerve segment
abduction of shoulder deltoid axillary nerve
C5
bending ofelbow biceps brachii musculocutaneous n
erve C5,C6
extending wrist of radialis
extensor carpi radialis muscle radial nerve C6
extending wrist of radialis
extending elbow flexion of finger abduction of thumb
triceps brachiiflexor pollicis longus, flexor digitorum profundusabductor pollicis brevisfirst dorsal interossei
radial nervemedian nervemedian nerveulnar nerve
C7C8T1C8,T1
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The related muscles detected for level diagnosis of lower limb nerve and its innervation
motor name of muscle nerve nerve segment
flexion ofhip bone iliopsoas muscle femoral nerve L1,L2
adduction ofhip bone ator of thigh obturator nerve L2,L3
extention ofknee quadriceps femoris femoral nerve L3,L 4
dorsiflexion anterior tibial deep peroneal L4
of ankle muscle nervecross-foot tibialis posterior tibial nerve L4,L 5
strephexopodia peroneus longus superficial peroneus brevis peroneal nerve L5,S
1genuflex biceps femoris sciatic nerve S1plantar flexion of ankle triceps surae tibial nerve S1,S 2