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34 Cards in this Set
- Front
- Back
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what type of anesthetics are used in peripheral nerve blocks?
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local
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how does local anesthesia work in peripheral nerve blocks
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prevents impulse conduction in the nerve
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can peripheral nerve blocks be both continuous infusion and single injection?
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yes
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How many cranial nerves are there?
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8 pairs
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how many thoracic nerves are there?
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12 pairs
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how many lumbar nerves are there?
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5 pairs
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how many sacral nerves are there?
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5 pairs
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how many coccygeal nerves are there?
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one
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T1 spinal nerve is right below
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the first rib
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T12 spinal nerve is just below
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the 12th rib and T12
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sensory neurons flow (in or out) of (dorsal or ventral horn)
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sensory neurons flow into dorsal horn
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motor neurons flow (in or out) of (dorsal or ventral) horn
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motor neurons flow out of ventral horn
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where is the sensory neuron located?
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dorsal root ganglion
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The cervical plexus is formed by
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the first four cervical nerves
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Anesthesia produced by cervical plexus block includes
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area of inferior surface of mandible to level of second rib
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Brachial plexus arises from anterior rami of
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C5-c8 and T1
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what are the 3 atantomic locations where local anesthetic slns are placed to block the brachial plexus?
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interscalene, supraclavicular, and axillary
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how many intercostal nerves are there?
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12 pairs
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Block of the intercostal nerves provides (sensory or motor) blockade to the
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sensory and motor blockade to the entire abdominal wall.
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do intercost nerve blocks block sympathetic nervous system?
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no
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what block would u give to relieve pain associated with rib fx?
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intercostal block
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principal risks of intercostal nerve blocks?
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pneumothroax and accidental intravascular injection of local anesth
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sacral plexus is located
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L4-L5, S1-S3
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which peripheral nerve block provides adequate anesthesia for the foot and lower leg?
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sciatic nerve block
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Fem,Blocka,obturator, and lateral femoral cutanous is acheived with single injection into the
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lumbar plexus
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The hand's dermatome
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C7, (Thumb) C8
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Back of arm dermatome
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C6, C7, C8
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big toe side of foot is
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L4
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lateral side of the foot dermatome is
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S1
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middle part of foot is
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L5
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ID dermatomes on slide 21
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see slide
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For interscalene block (part of brachial plexus) a line is drawn from the
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cricoid cartilage crosses transverse process of C6
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3 methods of nerve localization
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anatomical landmarks, elctrical stimulation, ultrasound visualization
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two types of electrical stimulation for peripheral nerve blocks
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transdermal,percutaneous
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