PowerPoint Presentation

Nervous systemObjectiveDescribe the structure and Functions of Brain and Spinal Cord

Functions of Nervous SystemSensory: gathers info about changes occurring within and around the body; sensory receptors, at ends of peripheral nerves, send signals to CNS examples light, oxygen levels, body temperature

Integrative: information is brought together, interpreted, to create sensations, create thoughts, add to memory, make decisions, etc.

Motor: sending of signals to muscles and/or glands to elicit a response

Parts of Brain

Cerebrum2 cerebral hemispheres separated by median longitudinal fissureconnected to one another with corpus callosumLobes of the cerebral hemispheresFrontalParietalTemporaloccipital

Cortical homunculusA cortical homunculus is a neurological "map" of the anatomical divisions of the body

Ventricular system4 ventricles2 lateral and 3rd and 4th ventriclesFormation Choroid plexus in lateral ventricles and 3rd and 4th ventriclesAbsorptionArachnoid villi

Meninges of the brain

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