Nervous System

Structure and functions

Structure

NeuronSoma or BodyAxon

Axon hillockTerminal buttons

DendriteMyelin

Na(+) K(-) Pump

Action potential

Structure

Brain CortexHemispheresCerebellumHypothalamus

Cortex.- Memory and emotions.Frontal.- Control speech, understanding

of spoken and written language.Occipital .- Control vision.Parietal.- Control muscle of the leg, hip,

trunk, arm, hand, face, tongue, and vocal chords.

Temporal.- Hearing, language, verbal memory and musical appreciation.

Structure

Spinal cordNerves

Cranial (12)Vertebral (31)

More information at:

http://serendip.brynmawr.edu/bb/kinser/Structure1.html#cerebellum

Central nervous system (CNS)

Central nervous system (CNS)The part of the nervous system

consisting of the brain and the spinal cord; the CNS is responsible for the integration of all nervous activities. Somatic subdivisionAutonomic subdivision

Structure

Peripheral nervous system (PNS)

Parasympathetic nerves

Sympathetic nerves

Peripheral nervous system The part of the nervous system that lies outside of the

brain and spinal cord, knowm collectively as the central nervou system (CNS). The nerves in the peripheral nervous system (PNS) connect the CNS to sensory organs (such as the eye and ear), other organs of the body, muscles, blood vessels and glands.

The PNS include the 12 cranial nerves, the spinal nerves and roots, and what are called the autonomic nerves. The autonomic nerves are concerned with automatic functions of the body — specifically with the regulation of the heart muscle, the tiny muscles lining the walls of blood vessels, and glands.

Function

PerceptionVisionHearingTasteTouchSmell

Function

ReactionDangerEmotionsFeelingsPainEtc.

ThinkingLearnedTalkAnalyze Create ideasConclude Create action