Chapter 13

Nervous System

Central:– Brain and spinal chord

Peripheral:– Cranial, and spinal

nerves, ganglia

Autonomic System

Maintains homeostasis Part of peripheral 2 parts

– Sympathetic Provides energy, and stress response “fight or flight”

– Parasympathetic Returns body to normal after stress, maintains normal

body function

Neuron Types

Sensory: – Carry sensory impulses towards CNS

Associative:– Carry info from one neuron to another

Motor: – Carry impulses away from CNS

Neuron Anatomy

Brain Anatomy

Cranial Nerves

Olfactory, optic, oculomotor, trochlear, trigeminal, abducent, facial, acoustic, glossopharyngeal, vagus, Accessory, hypoglossal

Spinal Chord

Common Ailments

Ataxia: no coordination Concussion: shaking of the brain -> leads to

further injury Hemiplegia: paralysis of one side Macro/Micro-cephlagy: too large, too small

skull Meningitis: inflammation of the meninges

(brain)

Common Procedures

Anesthesia: substance given to prevent pain. Without pain

Neurectomy: removal of nerves Neuroplasty: surgical repair of a nerve “Tap”- removal of fluid for study and culture Pupillary light reflex: response of pupil to

bright light source: shows neuro damage

Activities

Chapter Review Depict a neuron: Label the parts and what

they do Explain how a message is carried to the

brain from a limb What are the levels of consciousness?

Define each. Give one example of a disease or “problem” that would cause each

Copy figure 13-1 for your notes. Explain what is happening/ what it depicts