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Tyler Shared "SBM Week 1 Neuroanatomy" - 34 Picmonics

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SBM Week 1 Neuroanatomy

Brachial Plexus Trunks
Superior Trunk
Suprascapular Nerve
Middle Trunk
Inferior Trunk
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1 min
Brachial Plexus Divisions
Anterior (Division)
Posterior (Division)
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27 secs
Brachial Plexus Cords
Lateral Cord
Lateral Pectoral Nerve
Posterior Cord
Upper Subscapular Nerve
Thoracodorsal Nerve
Lower Subscapular Nerve
Medial Cord
Medial Pectoral Nerve
Medial Cutaneous Nerve of Arm and Forearm
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1 min
Brachial Plexus Branches
Musculocutaneous Nerve
Axillary Nerve
Radial Nerve
Median Nerve
Ulnar Nerve
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56 secs
Dermatomes - Cervical
C2 - Posterior Cap Distribution
C3 - High Turtleneck
C4 - Low Collar Shirt
C5 - Anterolateral Shoulder
C6 - Thumb
C7 - Middle Finger
C8 - Pinky Finger
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1 min
Dermatomes - Thoracic
T1 - Medial Arm
T4 - Nipple
T7 - Xiphoid
T10 - Belly Button
T12 - Pubis
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58 secs
Dermatomes - Lumbosacral
L2 - Medial Thigh
L3 - Medial Knee
L4 - Kneecap, Medial Ankle, and Big Toe
L5 - Dorsum of Foot
S1 - Lateral Foot, Posteriolateral Thigh
S 2, 3, 4, 5 - Perianal and Genitals
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2 mins
Anterior Thigh Muscles
Femoral Nerve
Psoas Innervated by L1-3
Quadriceps Femoris
Vastus Lateralis
Vastus Intermedius
Vastus Medialis
Rectus Femoris
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2 mins
Neuron Resting Potential
More Na+ Outside
Sodium-Potassium Pump
K+ Leaks Out
More K+ Inside
About -70mV
Voltage-Gated Sodium Channels are Closed
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2 mins
Neuron Action Potential Initiation
Summation of Signals
-50 mV Threshold Value Reached
Voltage-Gated Sodium Channels Open
Local Depolarization
Na+ Influx
Potassium Channels open
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2 mins
Neuron Action Potential Propagation
Unidirectional Depolarization
Absolute Refractory Period In Preceding Na+ Channels
Neighboring Voltage Gate Channels Open
Nodes of Ranvier
Myelination Increases Propagation Speed
Saltatory Conduction
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3 mins
Central Nervous System (CNS)
Frontal Lobe
Parietal Lobe
Temporal Lobe
Occipital Lobe
Medulla Oblongata
Spinal Cord
Dorsal Root Ganglia
Grey Matter
White Matter
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2 mins
Autonomic Nervous System
Sympathetic Nervous System
Fight or Flight
All Preganglionic Neurons Release Acetylcholine
Sympathetic Postganglionic Neurons Release Norepinephrine
Antagonistic Effects of Sympathetic and Parasympathetic Nervous Systems
Parasympathetic Nervous System
Rest and Digest
Parasympathetic Postganglionic Neurons Release Acetylcholine
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2 mins
Inducing Paralysis
Mechanism of Action
Neuromuscular Blocking Drugs
Motor Nicotinic Receptor
ACh Receptor Agonist
Phases of Action
Phase I (Paralysis Non-reversible)
Phase II (Paralysis Reversible)
Neostigmine (Reversal Agent)
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2 mins
Parkinson's Drugs
Parkinsons Characteristics
Decreased Dopamine
Increased Acetylcholine
Drug Names
BALSA Acronym
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2 mins
Posterior Thigh Muscles
Sciatic Nerve
Biceps Femoris
Long and Short Head
Flex Knee
Extend Hip
Laterally Rotate Hip
Semitendinosus and Semimembranosus
Flex Knee
Extend Thigh
Medially Rotate Thigh and Leg
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1 min
Medial Thigh Muscles
Adduct the Thigh
Obturator Nerve
Adductor Magnus
Tibial Nerve
Adductor Longus
Adductor Brevis
Obturator Externus
Laterally Rotates Thigh
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1 min
Lateral Lower Leg Anatomy
Superficial Peroneal Nerve
Eversion of Foot
Plantarflexion of Foot
Fibularis Brevis
Fibularis Longus
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55 secs
Anterior Lower Leg Anatomy
Deep Peroneal Nerve
General Action
Dorsiflex Foot
Tibialis Anterior
Invert Foot
Extensor Digitorum Longus
Extend 4 Toes
Extensor Hallucis Longus
Extend Great Toe
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1 min
Multiple Sclerosis Symptoms and Diagnosis
Optic Neuritis
Internuclear Ophthalmoplegia
Scanning Speech
Urinary and Fecal Incontinence
Motor Issues (Intention Tremor, Paresis)
Numbness and Pain
Relapsing Symptoms
Gold Standard = Plaques on MRI
Increased CSF Immunoglobulins (IgG)
Oligoclonal Bands
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4 mins

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