September 13, 2011September 13, 2011Warm UpWarm Up

1.1. Take out JournalTake out Journal

2.2. Write / Answer question belowWrite / Answer question below

What controls your body? What What controls your body? What system does it belong to?system does it belong to?

http://www.youtube.com/watch?v=Li5nMsXg1Lk&feature=player_detailpage#t=23s

FoldableFoldableFold one hot dog fold (tall and skinny)Fold one hot dog fold (tall and skinny)Make “Bracelet” or “Burrito” fold (see Make “Bracelet” or “Burrito” fold (see

teacher example)teacher example)Glue on both long sides of paper onlyGlue on both long sides of paper onlyGlue into journalGlue into journalCut up center crease, fold back both Cut up center crease, fold back both

sidessidesCut on creases to create doors / flapsCut on creases to create doors / flapsLabel as seen on next slideLabel as seen on next slide

Main FunctionMain Function:: This communication This communication system controls and system controls and

coordinates functions coordinates functions throughout the body and throughout the body and responds to internal and responds to internal and

external stimuli.external stimuli.

Our nervous system allows us to feel pain.

Consists of:Consists of: brain, spinal cord, nerves and brain, spinal cord, nerves and sense organssense organs

Sense Organs: Eyes, Skin, Ears, Nose & Tongue

brain

Spinal Cord

Cerebellum

Cerebrum

Medulla Oblongata

Consists of: Brain and Spinal Cord

Its function is to interpret, store, and respond to information received from inside and outside.

Cerebrum Voluntary or conscious activities of the body-learning, judgment

Cerebellum Coordinates and balances the actions of the muscles

Medulla Oblongata (Brain Stem)

Controls involuntary actions like blood pressure, heart rate, breathing, and swallowing

Spinal CordThe main communications link between the brain and

the rest of the body

CerebrumCerebrumVoluntary or conscious activities Voluntary or conscious activities

of the body-learning, judgmentof the body-learning, judgment

CerebellumCerebellumCoordinates and balances the actions Coordinates and balances the actions

of the musclesof the muscles

Medulla Oblongata Medulla Oblongata (Brain Stem)(Brain Stem)

Controls involuntary actions like blood Controls involuntary actions like blood pressure, heart rate, breathing, and pressure, heart rate, breathing, and

swallowingswallowing

Brain Stem

Consists of: Sensory division

and Motor division

-includes all sensory neurons, motor neurons,

and sense organs

A nerve is an organ containing a bundle of nerve cells called neurons.

Neurons carry electrical messages called impulses throughout the body. Neurons are able to respond to stimuli (such as touch, sound, light, and so on), conduct impulses, and communicate with each other (and with other types of cells like muscle

cells).

Picture shows hundreds of severed neuron axons

cellbody

muscle tissue

TYPICAL MOTOR NEURON

Axondendrite

synapse

cell body

Parts of a NeuronParts of a Neuron1.1. Cell bodyCell body:: contains nucleus & most of the contains nucleus & most of the

cytoplasmcytoplasm

2.2. DendritesDendrites:: projections that bring impulses into projections that bring impulses into the neuron to the cell body.the neuron to the cell body.

3.3. AxonAxon:: long projection that carries impulses away long projection that carries impulses away from cell bodyfrom cell body

1

32

Label your Diagram of the nervous Label your Diagram of the nervous system in your foldable.system in your foldable.

Finish FoldableFinish Foldable

Draw examples of each Draw examples of each vocabulary word on front cover vocabulary word on front cover of foldableof foldable

This powerpoint was kindly donated to www.worldofteaching.com

http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.

Additions added by: Katherine Pease