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CENTRAL NERVOUS SYSTEM/CNS
Includes brain & spinal cord as 2 bases of operation
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PERIPHEAL NERVOUS SYSTEM
spinal &cranial nerves
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AUTONOMIC NERVOUS SYSTEM
SYSTEM CONTROLS ACTIVITY CONDUCTED AUTOMATICALLY BY CERTAIN PERIPHEAL NERVES
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CEREBRUM
LARGE PART OF BRAIN/ BALANCE&CONTROL
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CEREBELLUM
2ND LARGEST PART OF BRAIN, "LIL BRAIN"
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MIDBRAIN
UPPER PART OF BRAINSTEM
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DIENCEPHALON
SECTION B/T MIDBRAIN&CEREBRUM
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CEREBRAL CORTEX
OUTER SURFACE OF CEREBRUM RESPONSIBLE FOR GENERATION OF IMPULSES
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LATERAL VENTRICLE
CAVITY OF BRAIN EXTENDING FROM FRONTAL PORTION OF CEREBRAL HEMI. TO POSTERIOR LOBE
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NEURON
BASIC UNIT OF NERVOUS SYSTEM
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CELL BODY
PART OF CELL CONTAINING NUCLEUS & SURROUNDING CYTOPLASM
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NUCLEUS
CENTRAL CONTROLLING STRUCTURE IN A LIVING CELL
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AFFERENT NEURON
SENSORY; CARRY SIGNALS TO BRAIN
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EFFERENT NEURON
STIMULATE CONTRACTIONS OR RELAX MUSCLES & SPURS GLAND ACTIVITY
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SYNAPSE
JUNCTION B/T NEURONS
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MENINGES
MEMBRANE COVERING BRAIN & SPINAL CORD
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DURA MATER
OUTER MEMBRANE OF MENINGES
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ARACHNOID
WEBLIKE MEMBRANE BTWEEN DURA MATER & PIA MATER
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PIA MATER
INNER MEMBRANE OF MENINGES
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CSF
CEREBROSPINAL FLUID/ LUMBAR PUNCTURE-DETECTS ABN SUBSTANCES & VARIATIONS IN CSF
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ELECTROENCEPHALOGY
STUDY OF BRAIN USING ELECTRODES
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ELECTROMYOGRAPHY
STUDY CONTRACTIONS OF MUSCLE FROM ELEC STIM. (EMG)
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MYELOGRAPHY
XRAY STUDY OF SPINAL CANAL & CORD AFTER CONTRAST DYE INJECTED INTO SUBARACHNOID SPACE
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CRANIOTOMY
ANY OPERATION TO OPEN THE CRANIUM
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ANEURYSM
SAC FORMED BY LOCALIZED DILATION OF WALLS OF ARTERY OR VAIN
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HYDROCEPHALUS
ABN. ACCUMULATION OF SPINAL FLUID W/IN BRAIN VENTRICLES
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ENCEPHALITIS
INFLAMMATION OF BRAIN TISSUE
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MENINGITIS
INFLAMM OF MENINGES( MEMBRANES OF SPINAL CORD OR BRAIN)
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CAROTOID ENDARTERECTOMY
REMOVAL OF PLAQUE OR THICKENED LINING OF A CARTOID ARTERY TO UNCLOG IT
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SHINGLES
VIRAL DISEASE AFFETING PERIPHEAL NERVES
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CONTUSION
BRUISE OF BRAIN FROM IMJURY
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CONCUSSION
POST TRAUMATIC SYND-HEADACHE MEMORY LOSS, DIZZINESS
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BELL'S PALSY
DISEASE CAUSING PARALYSIS OF ONE SIDE OF FACE
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VASCULAR DEMENTIA
ATROPHY & DEATH OF BRAIN CELLS
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HUNINGTONS CHOREA
INHERITED DX-MID AGE PROGRESSIVE DEGENERATION OF BRAIN
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TETANUS
ACUTE OFTEN FATAL INFECTION OF NERVE TISSUE BY BACTERIA COLSTRIDIUM TETANI
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MYEL/O
MARROW, SPINAL CORD
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NEUR/O
NERVE/ NERVOUS SYST
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PARTS OF A NEURON
- CELL BODY
- DENDRITES
- AXON
- NUCLEUS
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MYELIN
WHITE FATTY SHEATH COVERING AXON
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3 CLASSES OF NEURONS
- 1.AFFERENT/SENSORY-CARRY SIGNALS TO BRAIN OR SPINAL CORD
- 2.EFFERENT/MOTOR-STIMULATE CONTRACTIONS OR RELAXATION OF MUSCLES & SPUR GLAND ACTIVITY
- 3.INTER NEURONS-SHUTTLE MESSAGES BACK N FORTH THRU CNS PATHWAY
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NERVOUS SYSTEM PROTECTORS
SKULL,SPINAL COLUMN, & CSF WHICH ACTS AS A SHOCK ABSORBER
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BRAIN CONTAINS ABOUT 12 BILLION....
NERVE CELLS
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CEREBRUM IS DIVIDED INTO HALVES CALLED-
HEMISPHERES-CAUSED BY A DEEP VERTICAL FISSURE AKA SULCI
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FRONTAL LOBE
ANTERIOR LOBE OF BRAIN CONTROLS VOLUNTARY MUSCLES
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PARIETAL LOBE
SENSORY AREAS--DISTANCE, SIZE, SHAPE, TASTE & SPEECH
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TEMPORAL LOBE
HEARING, SMELL, MEMORY & LEARNING
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OCCIPITAL LOBE
BACK OF BRAIN-VISION
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LARGEST VENTRICLES OF BRAIN (2 OF 4)
LATERAL VENTRICLES
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BRAINSTEM COMPOSED OF
- MEDULLA OBLONGATA-HEART BEAT,BREATHING, CIRCULATION
- PONS
- MIDBRAIN
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CHIEF FUNCTION OF CEREBELLUM
BRINGS BALANCE HARMONY N COORDINATION
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DIENCEPHALON COMPOSED OF
- THALAMUS
- HYPOTHALAMUS
- EPITHALAMUS
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2 FUNCTIONS OF SPINAL CORD
- REFLEX ACTIVITIES
- PATHWAY FOR CONDUCTING SENSORY IMPULSES
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4 PARTS OF SPINAL CORD
CERVICAL, THORASIC, LUMBAR, SACRAL
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PERIPHEAL NERVOUS SYSTEM IS COMPOSED OF
- SPINAL CRANIAL NERVES/12 CRANIAL NERVES
- 31 PAIRS OF SPINAL NERVES CARRY VOLUNTARY N INVOLUNTARY IMPULSES EMERGE FROM SPINAL CORD N REGULATE ACTIVITIES OF DIFF PARTS OF BODY. NAMED AFTER CORRESPONDING VERTEBRA
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CRANIAL NERVES
- 12 PAIRS-4 IN FRONT OF BRAIN-4 RELATED TO PONS-4 ATTACHED TO MEDULLA
- GENERAL SENSE IMPULSES LIKE PAIN N TOUCH/VOLUNTARY N INVOLUNTARY CONTROL OF MUSCLES
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AUTONOMIC NERVOUS SYSTEM
- AUTO. CONTROLS INVOLUNTARY BODY FUNCTIONS BASED ON FEEDBACK FROM SENSORY NERVES.
- IE: ACTIONS OF GLANDS-SMOOTH MUSCLES OF HOLLOW ORGANS & HEART
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DIVISIONS OF AUTONOMIC NERVOUS SYSTEM
- SYMPATHETIC-INCREASES ACTIONS OF GLANDS & MUSCLES
- PARASYMPATHETIC-DECREASES THOSE ACTIONS
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