The Central Nervous The Central Nervous SystemSystem

By: Chase LewisBy: Chase Lewis

Central Nervous SystemCentral Nervous System

The two main parts of The two main parts of the central nervous the central nervous system are the brain system are the brain and spinal cord. and spinal cord.

The brain is the The brain is the control center. control center.

The spinal cord is the The spinal cord is the main highway. main highway.

The nerves (neurons) The nerves (neurons) are the signal carriers. are the signal carriers.

The BrainThe Brain The brain is the The brain is the

control center of the control center of the body.body.

The average adult The average adult human brain weighs 3 human brain weighs 3 pounds.pounds.

The brain contains The brain contains about 100 billion about 100 billion nerve cells. nerve cells.

Your brain is about 2% Your brain is about 2% of your total body of your total body weight but uses 20% weight but uses 20% of your body's energy.of your body's energy.

The energy used by The energy used by the brain is enough to the brain is enough to light a 25 watt bulb.light a 25 watt bulb.

Parts of The BrainParts of The Brain The frontal lobe –The frontal lobe – This part of the brain is This part of the brain is

the primary command and the primary command and control center of your control center of your brain. It is responsible for brain. It is responsible for reasoning and problem reasoning and problem solving along with solving along with judgment and impulses. It judgment and impulses. It can also be involved in can also be involved in motor control and motor control and memory.memory.

The Parietal Lobe - This The Parietal Lobe - This part of the brain helps to part of the brain helps to process pain and touch process pain and touch sensation. It is also sensation. It is also involved in cognition.involved in cognition.

Parts of The BrainParts of The Brain The Temporal Lobe The Temporal Lobe

helps to process helps to process sound sensation as sound sensation as well as language. It is well as language. It is also involved in also involved in emotion, memory and emotion, memory and speech.speech.

The Occipital Lobe is The Occipital Lobe is involved in visual involved in visual sensation and sensation and processing. The part processing. The part which controls and which controls and interprets vision interprets vision resides thereresides there

The Pons - It is also The Pons - It is also involved controlling involved controlling automatic body automatic body functions.functions.

The Cerebellum - This The Cerebellum - This part deals primarily part deals primarily with controlling with controlling movement. It helps to movement. It helps to control posture and control posture and balance as well as balance as well as helping people to helping people to learn movement.learn movement.

Parts of The BrainParts of The Brain

The cerebrum is the most The cerebrum is the most highly developed part of highly developed part of the human brain. It is here the human brain. It is here that things like perception, that things like perception, imagination, thought, imagination, thought, judgment, and decision judgment, and decision occur.occur.

Brain Stem: Brain Stem: The brainstem is the region The brainstem is the region

of the brain that connects of the brain that connects the cerebrum with the the cerebrum with the spinal cord. Motor and spinal cord. Motor and sensory neurons travel sensory neurons travel through the brainstem through the brainstem allowing for the relay of allowing for the relay of signals between the brain signals between the brain and the spinal cord.and the spinal cord.

Parts of The BrainParts of The Brain

The Spinal CordThe Spinal Cord The spinal cord is the The spinal cord is the

main pathway for main pathway for information information connecting the brain connecting the brain and peripheral and peripheral nervous system.nervous system.

A pair of spinal nerves A pair of spinal nerves leaves each segment leaves each segment of the spinal cord.of the spinal cord.

The length of the The length of the spinal cord is about 45 spinal cord is about 45 cm in men and 43 cm cm in men and 43 cm in women.in women.

Parts of The Spinal CordParts of The Spinal Cord

Cervical Nerve Cervical Nerve branches off from branches off from the nerves in the the nerves in the spinal cord. The spinal cord. The cervical nerves are cervical nerves are responsible for responsible for relaying messages relaying messages and ensuring and ensuring functioning to functioning to different body different body parts. parts.

C1-C8 controls the C1-C8 controls the head, diaphragm, head, diaphragm, upper body upper body muscles, wrist muscles, wrist extensors, triceps, extensors, triceps, andand hand. hand.

Thoracic spine Thoracic spine refers to the refers to the upper- and upper- and middle-back. middle-back.

T1-T12 controls T1-T12 controls the chest and the chest and abdomen abdomen muscles. muscles.

Thoracic spine is Thoracic spine is built for stability. built for stability. This stability This stability plays an plays an important role in important role in holding the body holding the body upright and upright and providing providing protection for protection for the vital organs the vital organs in the chest.in the chest.

Parts of The Spinal CordParts of The Spinal Cord Lumbar spine Lumbar spine

has no spinal has no spinal cord and is cord and is made up of a made up of a large amount large amount of space for of space for the nerve the nerve roots.roots.

L1-L5 controls L1-L5 controls the leg the leg muscles. muscles.

Sacral nerve Sacral nerve is located at is located at the bottom of the bottom of the spine. the spine.

S1-S5 control S1-S5 control the bladder the bladder and bowels. and bowels.

Webliography http://www.spine-health.comhttp://www.spine-health.com http://http://

www.brainhealthandpuzzles.comwww.brainhealthandpuzzles.com http://faculty.washington.edu/http://faculty.washington.edu/

chudler/spinal.htmlchudler/spinal.html http://biology.about.com/od/http://biology.about.com/od/ http://kidshealth.org/kid/htbw/http://kidshealth.org/kid/htbw/

brain.htmlbrain.html http://www.cognifit.com/brain-partshttp://www.cognifit.com/brain-parts