Sensory Systems, Spinal Cord & Brainstem Flashcards
What is the length of the spinal cord
42 - 45 cm
What are the three meningeal coverings of the spinal cord?
Pia
Arachnoid
Dura
Where does the spinal cord begin and when does it end with respect to the vertebral column?
Begins at Foramen Magnum, and is 2/3rds of the vertebral column, ending at L1/L2
Where are the two enlargements of the spinal cord located?
At the cervical and lumbosacral regions
What is the end of spinal cord called?
Conus medullaris
The roots of the spinal cord, located below the Conus Medullaris is…?
Cauda Equina
The Filum terminale is a continuation of…?
Pia mater
What is the epidural space?
A physical space between the Dura and bone
What is the subarachnoid space?
A potential space between the pia and arachnoid
As you travel down the spinal cord, which matter decreases.. Grey or white? Why?
White
As you go posteriorly, more axons are leaving the spinal cord
In the spinal cord, there is an anterior median ______ and a posterior median ______?
Anterior median fissure
Posterior median septum
What does ipsilateral and contralateral mean?
Ipsilateral - same side
Contralateral - opposite side
What are commissure fibres?
A collection of fibres which run from one side to the other side. Facilitate decussation
What does DCML stand for?
Dorsal Column Medial Lemniscus
What is Brown Sequard Syndrome?
Damage to one half of the spinal cord, resulting in paralysis and loss of propioception on the same side as the injury, and loss of pain / temperature sensation on the opposite side
