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THE NERVOUS SYSTEM
The Central Nervous System-the brain and spinal cord
1. Cerebrum-memory, thinking, learning, controls movement, senses report info here.
2. Cerebellum- 2nd largest, controls balance and coordination
3. Brain stem- controls breathing, digestion, heart rate, and blood pressure/connects brain to spinal cord
The spinal cord connects various organs of human body to the brain
Sensory neurons take signals from senses and brings messages to the Central Nervous System
Motor neurons carries out brains instructions (pull away from pain)
Interneurons takes info from sensory neuron (pain) sends it to brain
The Eye
The lens bends and focuses light rays
The retina is the screen of the eye, light is changed to electricity
The iris controls amount of light entering the eye
The optic nerve carries electrical impulses to the brain
The pupil light enters the eye through this hole
The cornea thin, transparent protective membrane
The choroid contains blood vessels that nourish the eye
The aqueous humor watery fluid in front of the eye
The vitreous humor jelly like fluid, keeps shape of back of eye
The sclera opaque, tough protective membrane
The Human Ear Table
Hammer amplifies sound first
Anvil amplifies sound second
Semi-circular canals controls sense of balance
Auditory nerve carries electrical impulses to the brain
Cochlea changes sound waves into electricity
Stirrup amplifies sound third and last
Ear drum vibrates with incoming sound waves
Eustachian Tube equalizes air pressure
Auditory canal passageways for vibrations
Pinna catches and funnels vibrations
I hope this helped. Each section has something to do with the brain so take some time to read it all. :)
Edit: AMAZING answer - nicely COPIED & PASTED from a web-site !
What else can I help you with?
When heart stops how long brain will work?
The Brain Will Work For 6-7 Mins. Then The Brain Cells Will Start To Die
Can the spinal cord work separate of the brain?
Yes the spinal cord can work without the brain.
How does video game work?
It work as well as you brain. NOTHING works as well as the normal brain.
Systems that work with the brain?
Systems that work with the brain include brain-computer interfaces (BCIs), neurofeedback systems, and electroencephalography (EEG) systems. These technologies can monitor brain activity, provide feedback to the brain, and interpret signals to control external devices.
How do the arms and legs work?
your arms and legs work by muscle and brain your brain tells your muscles how to work, they can also be controlled by nervs
Why does brain damage due to injuries diseases or birth defects have such serious consequence on our lives?
it causes your brain to not work tht much for example say this kid had brain damage his brain would not work as good as your brain
Why does brain damage due to injuries disease or birth defects have such a serious consequence on our lives?
it causes your brain to not work tht much for example say this kid had brain damage his brain would not work as good as your brain
How do brain teasers work?
brain teasers are really fun...!!!!!!! like work to tease your brain obviously lol.. people make them to get people all stressed out in a good way..
How does brain work?
huyyhuuh7yguygygy
How does the nervios system work?
it works with the brain and gets its energy from the brain
What system of the body does the brain work with?
the brain works with the nervous system
How does thiamine work to keep the brain?
without thiamine you get a brain disease
