Flashcards in Neuro Anatomy of the Spinal Chord Deck (31):
How many cord segments are there?
The cord tapers to a cone called what?
Cord segments are house by what?
Where are the spinal cord enlargements located?
C5-T1 and L1-S3/S4
What causes the cervical enlargement of C5-T1
Information from the Brachial plexus runs through here
What is the main difference between the cranial meanings and spinal meninges
There is and epidural space in the spinal meanings
The dura mater is innervated by what nerve
Recurrent meningeal nerve
The thecal sac extends to what vertebral body
What are the two derivatives of the pia mater
T/F Synapse happen in the white matter and not in the gray matter
False- only axons are found in the gray matter and synapse happen in the gray matter
Lateral horns can only be in what cord sections
The Central canal a remnant of what embryological structure?
The central Canal is a continuation of what structure?
What the four type of neurons found in the gray matter of the spinal cord?
What type of neuron has axons that leave the spinal cord?
Alpha neurons innervate what kind of tissue?
Extra fusal muscle fibers outside of the neuron muscular spindle
What kind of neuron stays within the cord segments and have short axons?
What kind of neuron has axons that go into the white matter before projecting upward to the brain?
What kind of Neuron is in all cord segments but does project to the brain?
What kind of neuron interconnects cord segments to effect posture?
T/F The ten layers refers to the white matter of the spinal cord?
False- there 10 layers refers to the gray matter
Pseudounipolar neurons synapse at what layers/
Layer I and II are collectively called what?
What kind of information enters the substantia gelatinosa?
Pain and temperature
The substantia gelatinosa gets information what kind of receptors?
Nociceptors and thermoreceptors
Layer III and IV are collectively call what?
What kind of information goes into the Nucleus Proprius?
Everything but pain and temperature
What kind of information enters layer VI?
What forms the complex circuitry in the lamina?
Where is the site of convergence of trigeminal and cord afferents?
C1- C3 in the dorsal horn