Final: Intro to the Nervous System Flashcards
The two divisions of the Nervous System include:
The Central Nervous System and the Peripheral Nervous System
What structures are included in that of the Central Nervous System?
The Brain and Spinal Cord
Within the brain what are the 4 main components?
The Cerebrum
The Diencephalon
The Cerebellum
The Brainstem
Where does the spinal cord begin and where does it end?
The spinal cord begins at the Medulla oblongata in the brainstem
The spinal cord ends at the 1st and 2nd lumbar vertebrae
Cauda Equina (Horses Tail) describes:
The tapered ends of the Spinal cord
What are the 3 main functions of the Nervous System:
- To carry impulses between the brain, spinal nerves, and the rest of the body
- Release Neurotransmitters
- Control both voluntary and involuntary bodily functions
What root is responsible for carrying motor impulses AWAY from the spinal cord to communicate with muscles and glands?
The Ventral Root
The main responsibility of the Dorsal Root is to:
Carry Sensory impulses TO the spinal cord
How many pairs of spinal nerves are there in total?
31 pairs
What is the difference between Cranial Nerves and Spinal Nerves?
Spinal Nerves will emerge from the spinal cord while Cranial Nerves will emerge from the brain
What is the function of Neuroglia?
They support and protect nervous Tissue
A group of nerve cell bodies on the pathway of a nerve describes:
Ganglion
The 3 membranous coverings of the brain and the spinal cord
The Meninges
Which layer of the meninges attaches directly to the brain and spinal cord?
The Pia mater
The tough, fibrous outermost layer of the Meninges?
The Dura mater
