C:10 TERMS Flashcards
Spinal Nerves
31 pairs of nerves arising from the spinal cord
Pia Mater
Thin; inner membrane of meninges
Peripheral Nervous System
Nerves outside the brain & spinal cord
Parasympathetic Nerves
Nerves that regulate involuntary bodily functions
Neuron
Nerve cell that carried impulses throughout the body
Nerve
Cord like fibers that carry electrical impulses
Myelin sheath
Fatty tissue that surrounds the axon; speeds conduction along axon
Gyri
Sheet of nerve cells that produce a round ridge on the cerebral cortex; brain folds
Cerebellum
Coordinates muscle movement and maintains balance
Cauda Equine
Collection of spinal nerves below the end of the spinal cord
Acetylcholine
Neurotransmitter chemical released at the ends of nerve cells
Cerebral
Thinking area: 4 lobes
- frontal
- parietal
- temporal
- occipital
Parasympathetic
Slows down
Lowers blood pressure
Sympathetic
Speeds up
Stimulates the body under stress
Pons
Brain stem