Spinal Cord Flashcards
What opening connects the Cranial Nerves to the Spinal Cord?
-Foramen Magnum (Opening)
What protects the Spinal Cord?
-Vertebral Canal
Name the X4 Segments of the Spinal Cord
- Cervical
- Thoracic
- Lumbar
- Sacral
Could Tina Leave School?
Why are the Cervical and Lumbosacral segments of the Spinal Cord enlarged?
-Assist a greater number of neurons
What is longer the Spinal cord or Canal?
VertebraL Canal
At what vertebrae of the spinal cord does it end?
-L1/L2-Lumbar
What is the -‘Conus Medullaris?’
Part at the end of spinal cord
What is the ‘Cauda Equina?’
- Horse’s tail
- It is a collection Nerve routes inferior part of Spinal Canal
Where is the ONLY place Spinal nerves are found?
-Intervertebral Foramen (spaces between vertebrae)
What X2 Axon Fibres are found in the Spinal Nerves?
-Sensory and Motor Axons
What is the route of the Sensory Axons of the nerve fibres?
Passes from Spinal Nerve> Posterior Route > Posterior Rootlets > Posterior Horn
What is the route of the Motor Axons of the nerve fibres?
Passes from Anterior Horn> Anterior Rootlets> Anterior Root> Spinal Nerve
What do the Spinal Nerves travel to and how?
- Travel to Soma- via Rami
- Travel to Spinal Cord-Via Roots/Rootlets
How many pairs of Spinal Nerves are there?
- X31 Pairs
- Each pair-Supplies X1 Strip of the Soma via Rami
What is the function of the Rami?
-Supplies nerves to ALL Limbs
