Nervous System Flashcards
Articular Process Role
Articulate to next vertebrae
Spinous / Transverse Process Role
Attach Muscles
Vertebral Foramen Role
Contains Spinal Cord
Boundaries of Vertebral Foramen
Vertebral Body, Pedicles, Lamina
C L S have proportionally large gray matter (vs T) because
Controlling limbs = more complex = more cell bodies
Dura Mater
Thick and protective
Arachnid Mater
Cerebrospinal Fluid
Pia Mater
Fine inner layer
Denticulate Ligament
Connect Pia Mater to Dura Mater
Filum Terminale
Anchors Spinal Cord to Coccyx
Dorsal Ramus goes to
Back
Ventral Ramus goes to
Limbs / front of body
Gray Ramus is
Post-ganglionic
White Ramus is
Pre-ganglion if
Autonomic Sensory info comes from the white/gray ramus
White
Autonomic Motor info all goes through the ____ ramus on the way to the _______ _______ and then some will return through the _____ ramus if it is going to the ventral/dorsal ramus
White, Sympathtic Ganglion, Grey
Pain and temp
Lateral spinothalamic tract
TOuch and pressure
Dorsal Column
Primary Sensory Neuron
Periphery to Spinal Cord/Brainstem
Secondary Neuron
Spinal Cord/Brainstem to Thalamys
Tertiary Neuron Sensory
Thalamys to Primayr Somatosensory Cortex
Motor Tract
Corticospinal Tract
Lateral Corticospinal Tract Decussate
Pyramids in Brainstem (85%, limb muscles)
Anterior Corticospinal Tract Decussate
Spinal Level (15%, axial muscles)
