Nervous System Anatomical Nerves Neuron A stimulus excites

Nervous System

Anatomical Nerves Neuron A stimulus excites the dendrites ---- cell body (nucleus) ----- axon(carries the impulses) away from the cell body --- myelin sheath (a fatty tissue covering the axon) ◦ ◦ ◦ a. b. c. d. e. Schwann cell White matter Grey matter Synapse Ganglion Acetylcholine

Nervous System Divisions Central Nervous System (CNS) § § brain – encephala spinal cord – myel Peripheral Nervous System § Autonomic Nervous System § a. Sympathetic nervous system § b. Parasympathetic nervous system § Efferent (motor) nerves § Afferent (sensory) nerves § Associative nerves

Divisions of the brain � Frontal � Parietal � Occipital � Temporal

Divisions of the brain � Cerebrum a. Cerebral cortex Cerebellum � Brainstem � a. b. c. d. Pons Medulla oblongata Midbrain Interbrain 1. 2. 3. 4. 5. Pituitary gland Hypothalmus Thymus Cerebrospinal Fluid (CSF) Meningies

Vocabulary � Depression � Stupor � Paralysis � Paresis � Ataxia � Tremor � Nystagmus � Plexus � Coma

Pathological Conditions � Epilepsy � Spina Bifida � Middle Ear Infections � Rabies � Roaring � Meningitis

Pathological Conditions � Hydrocephalus � Radial nerve damage � Downer cow � Schiff-Sherrington Syndrome � Vestibular Disease � Horner’s Syndrome