The Nervous SystemThe Nervous SystemBy: Lauren RenyBy: Lauren Reny

Grade 5 at FessendenGrade 5 at Fessenden

The major organs in the The major organs in the nervous system.nervous system.

The Spinal CordThe Spinal Cord The BrainThe Brain Hair FolliclesHair Follicles Facial NervesFacial Nerves

The Spinal CordThe Spinal Cord

Structure:Structure: A bundle of nerve fibres (Technically A bundle of nerve fibres (Technically

called axonscalled axons

Function:Function: Sends messages from the brain to the Sends messages from the brain to the

rest of the body.rest of the body.

BrainBrain

Structure:Structure: A pink jelly like organ that is folded A pink jelly like organ that is folded

over on itself to maximize it’s surface over on itself to maximize it’s surface area.area.

Function:Function: Controls everything in your body. Controls everything in your body.

Hair FolliclesHair Follicles

Structure:Structure: A group of epidermal cells at the A group of epidermal cells at the

base of a tube like depression.base of a tube like depression.

Function:Function: They basically make goosebumps.They basically make goosebumps.

Facial NervesFacial Nerves

Function:Function: Performs both motor and sensory Performs both motor and sensory

functions.functions. Controls muscles of the neck and Controls muscles of the neck and

forehead.forehead. Controls facial expressions.Controls facial expressions. Simulates secreations of the lower Simulates secreations of the lower

jaw.jaw.

The nervous systems The nervous systems relationship with the muscular relationship with the muscular

system.system.The nerves send messages to your The nerves send messages to your

muscles to tell them something muscles to tell them something is wrong or hurt in your body.is wrong or hurt in your body.

Healthy effects of the nervous Healthy effects of the nervous systemsystem

Eat healthyEat healthy Practice writing for at least 15 Practice writing for at least 15

minutes a dayminutes a day

Unhealthy effects of the Unhealthy effects of the nervous systemnervous system

Avoid alcohal and drugsAvoid alcohal and drugs Alcohal and drugs mess with Alcohal and drugs mess with

your brainyour brain

Diseases of the nervous Diseases of the nervous systemsystem

Spinal Dysraphism:Spinal Dysraphism: Abnormalibities in the spinal cordAbnormalibities in the spinal cord Mostly due to the development of Mostly due to the development of

spinal cord and/or the vertebralspinal cord and/or the vertebral

Epilepsy:Epilepsy: A condition characterized by A condition characterized by

recurring seizures in an individualrecurring seizures in an individual

Interesting facts about the Interesting facts about the nervous systemnervous system

The number of cells in the human body The number of cells in the human body exceeds the number of stars in the milky exceeds the number of stars in the milky wayway

The right side of the brain controls the left side The right side of the brain controls the left side of the body and the left side of the brain of the body and the left side of the brain controls the right side of the bodycontrols the right side of the body

By the time it’s born a baby’s brain By the time it’s born a baby’s brain consists of about 10 million nerve cellsconsists of about 10 million nerve cells

The human spinal cord consists of 13,500,000 The human spinal cord consists of 13,500,000 neronsnerons

Interesting facts continuedInteresting facts continued The weight of an average male’s The weight of an average male’s

brain is 1375 grams, while a females brain is 1375 grams, while a females would weigh 1275 grams.would weigh 1275 grams.

The nervous system can transmit The nervous system can transmit impulses at a tremendous speed of impulses at a tremendous speed of 100 meters per second100 meters per second

At any given time only 4 percent At any given time only 4 percent of your brain cells are active. The of your brain cells are active. The rest are kept in reserve.rest are kept in reserve.

ReferencesReferences

Nervous system-Nervous Nervous system-Nervous system.comsystem.com

The human body By Stephen The human body By Stephen BrunoBruno

www.Nervous-System-www.Nervous-System-Disease.comDisease.com

Buzzle.comBuzzle.com