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neurology
NEUROLOGY
INTRODUCTION:
Nervous System- the body’s communication network - coordinates and organizes
3 Division: 1. CNS- central nervous system - made up of the brain and the spinal cord 2. PNS- peripheral nervous system - includes nerves that connect the CNS to the remote body parts - relays and receives messages 3. ANS- autonomic nervous system - regulates the involuntary function of the internal organs.
Histology: made up of 2 cells

1. neurons –receive impulses and send them on to other cells
2. neuroglia- protect and nourish th neurons
Neuron: made up of 3 parts
1. dendrites – short projections from the cell body that conduct impulses towards the cell body
2. cell body – clustered together in ganglia or nuclie
3. axon – a long projection, conduct impulses away from the cell body

Neurons
Cell body
Axons and dendrites
Sensory neurons
Motor neurons
Synapse- chemical transmission of impulses from one neuron to another

ANATOMY
THA NEURON
GLOSSARY
Agnosia- loss of ability to recognize objects through a particular sensory system.
Ataxia - inability to coordinate muscle movements.
Axon - portion of the neuron that conducts impulses away from the cell body.

Cont….
Babinski reflex (sign) - a reflex action of the toes - abnormalities in the motor control pathways
Clonus - alternating contraction and relaxation of a muscle occurring in rapid succession.
Delirium - transient loss of intellectual functioning.

Flaccid - lack of muscle tone
Myelography (myelogram) - xray study of spinal cord after injection of a contrast.
Photophobia
- inability to tolerate light
Position sense - awareness of position of parts of the body

Rigidity - increase

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