Flashcards in Spinal Cord and Nerves Deck (111)
The spinal cord contains what?
What does the spinal cord do?
Controls some of the quickest reactions to environmental changes.
The site for integration of neuronal stimulation is where?
What does the spinal cord relay?
Sensory nerve impulses
What is the outer layer of meninges?
Where is outer layer of the meninges located?
What is the middle layer of the meninges?
Where is the middle layer of the meninges located?
Subarachnoid space with cerebrospinal fluid.
What is the inner layer of meninges?
Where is the inner layer of the meninges located?
Coccygeal and Denticulate ligaments.
What are meninges?
Connective tissue coverings that encircle the spinal cord and brain.
What is outer layer of meninges composed of?
Dense irregular connective tissue.
What is the middle layer of meninges composed of?
It's an avascular covering composed of delicate collagen fibers and some elastic fibers.
What is the layer between the dura mater and the arachnoid mater?
What are denticulate ligaments?
Thickenings of the Pia mater suspend the spinal cord in the middle of the dural sheath.
What shape is the spinal cord?
Where does the spinal cord extend from?
The medulla oblongata to the superior border of the second lumbar vertebra.
What is the length of the adult spinal cord?
What are the two conspicuous enlargements in the spinal cord?
What is the tapering end of the spinal cord inferior to the lumbar enlargement called?
Where does the tapering end of the spinal cord end?
Ends at the level of the intervertebral disc between the first and second lumbar vertebrae.
What is the extension of the Pia mater?
What does the film terminals fuse with?
Arachnoid mater and dura mater, anchors the spinal cord to the coccyx.
What are spinal nerves?
Paths of communication between the spinal cord and specific regions of the body.
What does each pair of spinal nerves have?
How many pairs of cervical nerves are there?
How many pairs of sacral nerves are there?
How many pairs of coccygeal nerves are there?
What connects the spinal nerve to the segment of the cord?