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29 Cards in this Set
- Front
- Back
lumbar tap (spinal tap)
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removal of cerebrospinal fluid from below the L3 this is done to analyze the fuid without endangering the spinal cord
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saddle block
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caudal anesthesia for childbirth, normally adminstered between L3 and L5
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gray matter
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in a cross section view of the spinal cord this looks like a butterfly or "H"
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white matter
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composed of myelinate fibers
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paraplegia
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paralysis of legs
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quadriplegia
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paralysis of all limbs
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mixed nerves
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contain both afferent and efferent
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dorsal rami
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smaller than their anterior counterparts, contain both motor an sensory fibers
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ventral rami
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larger than its counter part, contains both motor and sensory fibers, form complex network of nerves called plexuses
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intercostal nerves
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the ventral rami of the spinal nerves that pass through T 2 -T12
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nerve plexuses
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area where nerves branch and region. Four major
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cervical plexus- chief peripheral nerves
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lesser occipital, greater auricular, transverse cutaneous, supraclavicular, ansa cervicalis and phrenic
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phrenic nerve
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cervical plexus
C3-C5 diaphragm |
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brachial plexus
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large and complex arising from c5-c8, t1
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axillary nerve
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brachial plexus
posterior cord c5 c6 deltoid teres minor, skin of shoulder |
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radial nerve
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brachila plexus
posterior cord c5-c8, t1 forearm and hand, posterolateral surface of entire limb |
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ulnar nerve
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bracial plexus
medial cord c8 t1 forearm, skin of medial third of hand |
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lumbosacral plexus
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serve the pelvic region of trunk and lower limbs
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lumbar plexus
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arise from ventral rami l1-l4, nerves serve the lower abdominopelvic region and the anterior thigh
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femoral nerve
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lumbar plexus
L2-L4 skin of anterior and medial thigh, anterior muscles of thigh |
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sacral plexus
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supply the buttock and posterior surface of thigh and virtually all sensory and motor fibers of the leg and foot
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sciatic nerve
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sacral plexus
L4 L5 S1-S3 composed of tibia and common fibular nerves |
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tibial nerves
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sacral plexus
L4-S3 skin of posterior surface and sole of foot, muscles back of leg |
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common fibular nerve
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sacral plexus
L4-S2 skin of anterior surface of leg, extensor musclesfibularis muscles |
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sciatica
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characterized by stabbing pain over the course of the sciatic nerve
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foot drop
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when sciatic nerve is severed, leg cannot flex and the foot drops into plantar flexion
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autonomic nervous system
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a subdivision of the PNS that regulates body activities not under conscious control
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somatic nervous system
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this sytem innervates skeletal muscles, the cell bodies resid in the CNS and the axons extend all the way to the muscles they serve, divided into sympathetic and parasympathetic
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orthostatic hypotension
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type of low blood pressure resulting from body position (laying- standing)
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