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22 Cards in this Set
- Front
- Back
Lateral proximal thigh |
Lateral fem cutaneous L2-3 ASIS |
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Ordr of nerves in spinal |
Sympathetic, B cold, C pinprick (delta), touch (A beta), Proprioception, motor (A alpha) Comes back in that order. |
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Common Peroneal |
Foot eversion, so redirect needle medial biceps femoris laterally, semimembranosus medially, and the two heads of the gastrocnemius inferiorly. This creates a triangle for the posterior approach tibial nerve results in plantarflexion and inversion of the foot |
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Musculocutaneous |
Elbow flexion Gives off the lateral antebrachial cutaneous nerve, lateral forearm sensation. Branches off prior to radial, ulnar and median. So u inject coracobrachialis |
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Stroke |
Thalamic pain syndrome is from latent plasticity Weeks to months after No temp issues just paresthesias and allodybia Denerine roussy |
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Substance p |
First-order neurons secrete substance P in the dorsal horn as a chemical mediator of pain signaling. And then spinothalamic Dorsal horns also use adenosine |
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Pain pathway |
Central inhibition occurs via the descending pathways from the periaqueductal gray matter and alpha-2 receptor agonism. Wind-up" is a phenomenon that describes an exponentially progressive increase in firing of WDR neurons with repeated stimulation. |
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Central sensitization |
central mechanism is referred to as spinal sensitization, which is defined as a heightened sensitivity of spinal neurons that reduces activation threshold and increases input responsiveness. Spinal sensitization is largely mediated by the N-methyl-D-aspartate (NMDA) receptor. |
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Spinal stenosis |
Lateral recess stenosis causes radicular pain in the nerve above the spinal level. The lateral recess is very posterior in the spinal canal and impinges on nerves leaving the canal at the level above the corresponding vertebral level. For example, lateral recess stenosis of L3-4 will cause radicular pain of the L2 nerve. |
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Interscalene |
A diaphragmatic response (e.g., coughing, gasping, hiccupping) during interscalene blockade (ISB) indicates that the needle is stimulating the phrenic nerve. The needle tip is positioned too anteriorly and must be redirected posteriorly (B) toward the cervical nerve roots to achieve the desired blockade. interscalene groove and directed medially, caudally, and slightly posteriorly in the direction of the C6 transverse process. The caudad tilt of the needle is important to avoid high-spinal anesthesia or a spinal cord injury that could result from entering the neural foramen or injecting into the dural nerve root sheath. When using a nerve stimulator, the desired motor response is twitching of the pectoralis, deltoid, arm, forearm, or hand muscles. Diaphragmatic or trapezius twitches indicate cervical plexus stimulation. A diaphragmatic response occurs due to stimulation of the phrenic nerve. The phrenic nerve runs along the anterior surface of the anterior scalene muscle, whereas the C5-7 nerve roots are located posterior to the posterior border of the anterior scalene |
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Fem block |
sartorius twitch is encountered, the recommended maneuver to obtain a patellar twitch (the preferred end-point) would be to advance the needle deeper and slightly more lateral Posterior divisions of l2-4 |
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Obturator |
Bottom Line: The obturator block is performed by injecting local anesthetic between the adductor longus and brevis muscles.TrueLearn Insight : The mnemonic ALABAMa is used to remember the muscles from superficial to deep: Adductor Longus, Adductor Brevis, Adductor Magnus. L2to4 ANTERIOR division |
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anterior cerebral artery |
- parietal lobe=motor, sensory, brocas comes from internal carotid also supplies frontal lobe basal ganglia olfactory |
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basilar stroke |
locked in syndrome. can still wink and have conciousness loss of involuntary face |
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PCA stroke |
macular sparing blindness |
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POsterior cord |
Radial and Axillary nerve |
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Medial cord |
median (medial head) and ulnar |
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lateral cord |
median and musculoskeletal |
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Lateral Femoral Cutaneous |
L2-3 Sill posterior division LIKE FEMORAL |
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Lumbosacral Plexus |
L45, S1-3 Cutaneous Nerve is the other one, and both have branches of anterior rami 4 and 5 |
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Tibial v peroneal |
Tibial is Ventral Peroneal is dorsal. Both have therefore innervation of L4-S3 |
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Anterior Division of FEm nerve |
Sensory WHeras POsterior is MOTOR (quads |