Thursday, September 20, 2012

Senses Concept Map







Senses

I.       Feel

       The sense of touch can happen all over your body.  Nerve endings in the skin transmit sensations to the brain.   The fingertips and the sexual organs have the greatest concentration of nerve endings.  Cold, heat, contact, and pain are the four kinds of touch sensations.  Hairs magnify the sensitivity and act as an early warning system for the body.  

A.    Everywhere

B.    Dermis

1.           Nerve Endings

2.           Brain

II.             Sight

       The eye is like a camera.  The eyes take in light from what you are looking at and make a tiny picture of it on the back of the eyeball.  Nerves in the eye take a message to the brain of the picture.  The brain tells us what we are looking at. 

A.    Pupil

B.    Retina

1.           Lens

2.          Optic Nerve

III.    Taste

A.    Taste Buds

            Taste buds are sensory organs that are found on your tongue.  They allow you to experience tastes that are sweet, salty, sour, and bitter.  All the small bumps on your tongue are called papillae, and most of the bumps contain taste buds.  The taste buds have microscopic hairs called microvilli that send messages to the brain about how something taste.  Most people have 10,000 taste buds and they are replaced every 2 weeks.  An older person may only have about 5,000 taste buds due to taste cells not replicating. 

1.         Papilla

2.         Microvilli

B.    Nose

IV.    Smell

       The sense of smell works by vaporized odor molecules floating around in the air reaching the nostrils and dissolving in the mucus.  Underneath the mucus, in the olfactory epithelium, specialized receptor cells called olfactory receptor neurons detect the odor.  The olfactory receptor neurons transmit the information to the olfactory bulbs, which are located at the back of the nose.  The olfactory bulbs have sensory receptors that are part of the brain that send messages directly to the most primitive brain centers where they influence emotions and memories, and also to the higher centers where they modify conscious thought.   These brain centers perceive odors and provide memories to remind us about places, people or events associated with these olfactory sensations.

A.    Nostril

B.    Neuron

1.         Cilia

2.         Odor Molecule

V.     Hear

A.    Outer Ear

B.    Middle Ear

1.         Hammer bone

2.         Anvil bone

3.         Stirrup bone

C.    Inner Ear

            In the inner ear the liquid and hairs are in a curled tube called the cochlea.  The liquid and hairs move due to the bones in the middle ear vibrating when the eardrum does.  Messages move along nerves to the brain. Then the brain tells you what the sound is.  The inner ear also helps us keep our balance. The liquid in the inner ear swirls about when you move. Nerves in the inner ear tell your brain which way you are moving, which helps you to keep your balance

 



11 comments:

  1. took something so common and made it very educational and understanding.. nice!

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  2. I think that this is a good topic because its general and everyone uses them. You did a really good job of explaining each sense. You seem to really know what your talking about. The map is very organized. The only thing that I would change would be the sight part of the map. It has black links and I can't read it or see it from the back. Overall good job!

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  3. I love the 5 senses
    It is very interesting to a child as well
    You were very informational for older people
    I don't think children would know as much as you told.
    Would be helpful if you just teach them their senses first and then become more informational on down the line

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  4. I loved how you did your concept map on the senses. I feel this is a very important topic for students to learn. The pictures do a good job showing what each sense is. This topic can be taught to many different grades depending on how in detail you go.

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  5. I would choose a different color for hearing its really bright and hard to see but other than it is a good idea!!

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  6. I like how all your topics/subtopics are different colors. keeps them separated. Some words you can't really see so I would maybe change the colors. Need to make words more understandable for younger kids.

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  7. I thought Katherine knew a lot about the subject but she used a lot of big words that kids may not know. The map was organized very well though and she did a good job describing it.

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  8. I like this topic, because this is something that you will get a chance to teach in future. I think that this would be a great topic to teach middle school students! The babydoll example would be a good tool to use! Good job! :)

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  9. The hearing and seeing are very hard to see. I would suggest using a different color font or boxes in the concept map. I also think that the background color is a bit dark. I might want to lighten it up a bit for the classroom.

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  10. Good topic! From experience with younger children a lot of them aren't entirely sure what the 5 senses are..mostly because the 5 senses are seen as "common sense" knowledge and aren't focused on as they should be.

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  11. This is a good lesson to teach to kids. The concept map is very visual and you seem to know a lot about what you are talking about. I would say maybe make it more visually appealing to kids by brighter colors.

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