ITS SPINAL
What carries motor information down the spinal chord?
Descending Spinal Tracts
What does it mean for nervous impulses to cross from one side of the body to the other?
Decussation
Why is white matter white?
Because of the presence of myelin
How do you sample Cerebrospinal Fluid?
Spinal Tap/Lumbar Puncture
Is grey matter more deep of superficial in a cross section of a spinal chord?
Deep
Do dermatomes overlap?
YES (50%)
What is the name for a “horse tail” in the lumbar region of the spinal chord?
Cauda Equina
What is the space between the dura mater and the vertebral bones?
Epidural Space
What resides in the middle of the spinal chord?
Central Canal
What does EPSP and IPSP mean?
Inhibitory/Excitatory Postsynaptic potential
How many pairs of spinal nerves in total are there?
31 (8,12,5,5)
What are the four major regions of the spinal chord?
Cervical
Thoracic
Lumbar
Sacral
Is the anterior root of a spinal nerve sensory (afferent) or motor (efferent) controll?
Motor
What is destroyed in poliomyelitis?
Motor neurons in brainstem and anterior horn of spinal chord
What is the goal of reciprocal inhibition?
Prevent muscles from working against each other
What are the 3 fibrous layers of the spinal cord from deep to superficial?
Pia Mater
Arachnoid Mater
Dura Mater
What are the number of vertebrae in each of the 4 primary regions?
C=7
T=12
L=5
S=5
What resides in the dorsal root ganglion?
The soma/cell body
What is a bundle of nerves called?
Fascicle
What reflex is involved in the tap of the knee at the doctors office?
Patellar Reflex
What are the three of the four primary functions of the spinal chord?
Conduction
Neural Integration
Locomotion
Reflexes
What is the enlargement on the Afferent (sensory) Part of the spinal nerve?
Dorsal Root Ganglion
Where does a second order neuron terminate?
Thalamus
What are the layers of a nerve from deep to superficial?
Endoneurium
Perineurium
Epineurium
What is a nonvisual sense of position and movement of the body and its parts?
Proprioception