A LITTLE OF THIS AND THAT
What is the gap between nerve cells called?
Synapse
How fast in miles per hour, does a message travel along a nerve?
About 266 miles per hour. (Anything close is fine.)
If you eat food that is waaaay toooooo spicy for you, how does the message get to the brain?
Through the taste buds on your tongue.
What is the colored ring in the eye called, and what is it's job?
It is the iris. It's job is to control the amount of light coming through the pupil.
Along what path does sound go from your ear to your brain?
The auditory nerve.
What are the three major part of the brain?
Cerebrum, cerebellum and brain stem.
How does the color "red" cross from one nerve to the next?
Chemical bubbles.
If you are involved in a car accident and afterwards you keep loosing your balance when you walk, and you feel uncoordinated, what part of your brain might be bruised or damaged?
The cerebellum.
What are the four layers of the eye?
Cornea, choroid, sclera and retina.
Noise is one of the major causes of hearing loss. How can you prevent this from happening when you listen to music?
Keep the music at a "speaking" volume or lower, all the time.
What makes up the central and peripheral nervous system?
The central is the brain and spinal cord.
The peripheral is all the nerves that go out to the rest of your body.
The cell body receives messages from what structures?
The dendrites
What type of nerve runs up your spinal cord and what is it's job?
Interneurons transfer messages from the sensory nerves to the motor nerves.
When the cow eye was dissected in class, liquid came out from the center of the eye. What was it?
Vitrious humor (or fluid).
Why do some kids need tubes put in their ears and where are the tubes placed?
If fluid keeps building up in the middle ear, the tubes are put into the ear drum to drain the fluid.
Your skin can send four different types of messages to your brain. What are they?
Temperature, pain, light touch and heavy pressure.
How is a reflex action different from a normal reaction?
A reflex messages only travels to the spinal cord and back, so the reaction is faster. A normal reaction involved the brain.
Why is it serious of someone gets many concussions?
It can cause permanent damage.
What is the back inside wall of the eyeball called, what does it contain, and why is it important?
The retina contains cones and rods and it is important because the sensory nerves allow you to see.
What is the path of sound through the entire ear?
Ear canal to ear drum to hammer to anvil to stirrup to cochlea to auditory nerve to brain.
How many different basic odors can a person identify?
50 basic odors.
You try on a shoe that's way too tight, explain what nerves are involved and how your nerves let you respond?
The sensory nerve sends a message to the interneuron in your spine and brain and the brain sends the message along your motor neuron to remove the shoe.
If someone damaged their medulla, what would you have to do to keep them alive?
You would have to breathe for them and keep their heart beating. CPR.
If your vision is blurry and the doctor says the image seems to be landing in FRONT of the back of the eye, what would that condition be called?
Near-sightedness.
What is the structure in the inner ear that doesn't help with hearing, and how does it work?
The semi-circular canals have water in them that tell the brain what position your head is in.