Nervous System Chapter 10

Combining Forms for the Nervous System arthr/o articulation dysarthria cerebr/o cerebrum cerebrospinal (largest part of brain) cerebell/o cerebellum cerebellar (little brain)

Combining Forms for the Nervous System crani/o skull cranium encephal/o entire brain encephalography hypn/o sleep hypnosis somn/o polysomnography somn/i somnipathy

Combining Forms for the Nervous System kinesi/o movement kinesiology lex/o word/phrase dyslexia mening/o meninges meningocele meningi/o (membrane) meningitis

Combining Forms for the Nervous System myel/o spinal cord/ myeloma bone marrow narc/o stupor, sleep narcotic neur/o nerve neuralgia

Combining Forms for the Nervous System phas/o speech dysphasia phor/o carry/bear euphoria

Combining Forms for the Nervous System phren/o mind schizophrenia psych/o psychotic thym/o dysthymia schiz/o split schizoid somat/o body psychosomatic

Combining Forms for the Nervous System spin/o spine spinal (thorn) spondyl/o vertebra spondylosyndesis vertebr/o vertebral tax/o order/ ataxic coordination

Combining Forms for the Nervous System top/o place topesthesia ventricul/o ventricle ventriculostomy (belly or pouch) cata- down catatonic

Additional Suffixes for the Nervous System -lepsy seizure narcolepsy -mania condition of necromania abnormal impulse towards -paresis slight paralysis hemiparesis -plegia paralysis paraplegia

Nervous System Overview Intricate communication system DIVIDED INTO THREE SYSTEMS Central nervous system (CNS) brain and spinal Cord Peripheral nervous system (PNS) nerves that branch from the central nervous system Autonomic nervous system (ANS) nerves that carry involuntary impulses to smooth muscle, cardiac muscle and various glands

Nervous System Components

Anatomy of the Brain Cerebrum Cerebellum Brainstem Covered by a cerebral cortex (higher mental fx) Divided into two hemispheres Consists of 4 lobes (know what the 4 lobes do) Cerebellum Controls coordination of skeletal muscles Brainstem Is the brains control center relaying information between the cerebrum, cerebellum, and spinal cord. Is the vitals center (RR, HR, body temp).

Brain

Central Nervous System (CNS) Three layers protect the brain and spinal cord called the meninges. Dura mater Arachnoid Pia mater Within these protection layers is the cerebrospinal fluid (CSF).

Hydrocephalus There can be many causes. Host of sx Meningitis Subarachnoid hemorrhage Tumor Host of sx Vomitting, irratibility, seizures, HA, change in personality, loss of coordination, loss of bladder control

Midsagittal View of the Brain

Peripheral Nervous System (PNS) Consists of the nerves that branch off the CNS Cranial nerves Spinal nerves Sensory nerves Motor nerves

PNS continued

Autonomic Nervous System (ANS) Carry the involuntary impulses to smooth muscle, cardiac muscle, and various glands (i.e. adrenal cortex). Hypothalamus – the control center Divided into two more systems Sympathetic Nervous System – fight or flight Parasympathetic Nervous System – counterbalance after stressful situation.

TIA vs CVA Brief episode with loss of blood to the brain by a partial occlusion resulting in a temporary neurological deficit. Think of what the 12 cranial nerves fx are. Confusion Diff. speaking Loss of coordination, speech, & facial movement Damage to the brain (lack of blood) due to the occlusion of a blood vessel in the brain. Embolus Thrombus hemorrhage

Cerebrovascular Accident (CVA)

Transient Ischemic Attack (TIA)

The Patient with a CVA or TIA Aphasia – the lack or inability to form or understand language Dysarthria – dysfunction in the muscles that control speech Dysphagia – difficulty speaking Words Salad – “I ate the blue car at McDonalds” Flat affect Paralysis (-plegia) Hemiparesis (partial on R or L of body) , flaccid or spastic paralysis Also known as hemiplegia, rarely paraplegic, sometimes quadriplegic Ataxia Catatonic

Nervous System Symptomatology Aphasia, dysphagia, dysarthria Coma Delirium Dementia Neuralgia 3 types of paralysis Syncope Herpes zoster (shingles) Encephalitis vs Myelitis Seizure Tonic-clonic (grand mal) Absence (petit mal) Partial (focal) Hydrocephalus 3 types of -plegia

Nervous System Diseases Alzheimer disease Amyotrophic lateral sclerosis (ALS) AKA Lou Gehrig’s disease Cerebral palsy (CP) Epilepsy Multiple Sclerosis (MS) Meningitis Parkinson’s disease

Nervous System Diagnostics/Tests Operative Procedures Electroencephalogram (EEG) Lumbar Puncture (LP) Positron emission tomography (PET) Myelogram Babinski sign or reflex Indicative of a CNS disorder Craniotomy Diskectomy Laminectomy Neuroendovascular surgery Spondylosyndesis

Psychiatric Terms Disorders Flat affect Catatonia Delusion Hallucination Ideation Mania Psychosis Autism Depression PTSD OCD Schizophrenia This project was funded at $3,000,000 (100% of its total cost) from a grant awarded under the Trade Adjustment Assistance Community College and Career Training Grants, as implemented by the U.S. Department of Labor’s Employment and Training Administration. Rogue Community College is an equal opportunity employer/program. Auxiliary aids and services, alternate form and language services are available to individuals with disabilities and limited English proficiency free of cost upon request.   This work is licensed under a Creative Commons Attribution 4.0 International License.