| Term | Definition |
| Central Nervous System | brain and spinal cord |
| Peripheral Nervous System | peripheral nerves through the body |
| Sensory Function | gathers info about changes occurring within and around the body
Afferent nerve |
| Integrative Function | information is "brought together," interpreted, to create sensations, create thoughts, add to memory, make decisions |
| Motor Function | response to signals (impulse)
maintain stable conditions
Efferent Nerve |
| Somatic Nervous System | skeletal muscles |
| Autonomic Nervous System | smooth muscles and glands |
| Dendrites | form the receptive surfaces of neurons |
| Axons | conducts impulse away from the cell body |
| Neuroglial Cells | supportive tissue of the nervous system |
| Microglial Cells | makes sure no garbage and eats what shouldn't be there
Brain & Spinal Cord |
| Oligodendrites | produces myelin for CNS
Brain & Spinal Cord |
| Astrocytes | blood brain barrier
Brain & Spinal Cord |
| Ependymal Cells | secrete cerebrospinal fluid
Brain & Spinal Cord |
| Schwann Cells | produces myelin
Peripheral |
| Mylinated | white matter |
| Unmyelinated | grey matter |
| Nerve | bundle of nerve fibers |
| Meninges | membrane located between bone and soft tissue of the CNS |
| Dura mater | outer layer, blood vessels, nerves
TOUGH |
| Arachnoid mater | no blood vessels
WEB LIKE |
| Pia mater | contains many nerves and blood vessels to nourish cells of the brain and spinal
CONECTING NEURONS |
| Cerebrospinal Fluid | circulates between arachnoid and Pia mater |
| Cervical Enlargement | supplies nerves to upper limbs (neck) |
| Lumbar Enlargement | supplies nerves to lower limbs (lower back) |
| CNS Function | conducting nerve impulses, serves as a enter for spinal reflexes |
| Ascending Tracts | carries sensory info to the brain |
| Descending Tracts | carry motor impulses from the brain to muscles |
| Cerebrum | Largest, sensory and motor functions, mental function
Memory and reasoning |
| Cerebellum | Coordinate voluntary muscles |
| Brain Stem | Regulates autonomic functions
(Heart rate, blood pressure, and body temp) |
