Neuro Flashcards
Subthalamus lesions
Sudden flailing of entire limb
Globus Pallidus Lesions
Writhing movements of hands arms neck and face
Putamen Lesions
Flickering movements
Substantial Nigra lesions
Rigidity, akinesia, tremors
The alpha neuron and fibers it innervates
Motor unit
Actions of ACH at NMJ can be blocked by
Curare
Cobra Venom
Excitatory
Depolarization
Na enters cell
Inhibitory
Hyper polarization
Na leaves
Cl enters
Biogenic Amines
NE
Dopa
Serotonin
Inferior cerebellar peduncles
Connect medulla and cerebellum dorsally
Olive
Carries sensory info to cerebellum
Cerebral peduncles
Carry motor info from corticospinal tracts to spinal cord
Superior colliculi
Midbrain, relay for visual reflexes
Inferior colliculi
Auditory info
Red nuclei
Motor coordination
In midbrain
Substantia Nigra
Regulates basal nuclei
Motor coordination
In mid brain
Flocconodular lobe
Cerebellum
Involved in equilibrium
Most common vessel involved in CVA
Middle cerebral artery
If MCA blocked on left side
Aphasia
Deficits on right side
MCA blocked on right side
Difficulty drawing of interpreting spacial relationships
Left side deficits
Spinothalamic tract
Pain and temp relayed to cerebral
Cortex
Medial lemniscal pathway
Sensory info conveying touch/pressure & propireceptiom
Dorsal column of sc
Lateral Corticospinal tract
Fine detailed movements in distal limbs
Corticospinal tract
Voluntary movements
Directly from cerebral cortex
Extrapyramidal pathway
Indirect pathway
Controlled by motor circuit structures
Positive Babinskis reflex
Damage to pyramidal motor system
Ipsilateral hemiplegia caused by GSW
Brown sequard syndrome
Injury to thoracolumnar spine
May interrupt sympathetic outflow
Injury to sacral region
Parasympathetic flow impacted, incontinence
Primary sensory cortex located
Postcentral gyrus
