Sensations and Perception Worksheet - DOC

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Sensations and Perception Worksheet - DOC Powered By Docstoc
					                                                   BRAIN LAB!
Purpose: In this activity, you will learn the location of some of the different brain structures. You will also
learn about the functions of each of these structures.

Directions: On your brain chart, locate each of the numbered areas and color it in with the appropriate color
as indicated below. After you color a particular area, read the description of that areas function in the brain.
Once your entire brain chart has been color coded, you will answer the questions on the “Brain Lab
Worksheet” handout. This handout will check for your understanding on the different areas of the brain. You
will be responsible for the information contained in this lab.

                                             Cerebrum of the Brain
     Provides us with the ability to read, write and speak; to make calculations and compose music; to
                         remember the past and plan for the future; and to create

1. lt. red      frontal lobe            One of the four visible lobes of the cerebrum

2. dk. red      motor area              Area of the frontal lobe that activates muscles of the body; initiates

3. yellow       Broca’s area            Important motor area in the left frontal lobe involved in articulating
                                        words when speaking

4. lt. blue     parietal lobe           One of the four visible lobes of the cerebrum

5. dk. blue     sensory area            Area of the parietal lobe that produces sensations such as pain, touch
                                        and pressure; involved in perception- temperature, itch, tickle; the
                                        conscious awareness of sensation
6. lt. green    occipital lobe          One of the four visible lobes of the cerebrum

7. dk. green    visual area             Area in the occipital lobe that receives and interprets sensory
                                        information from the eyes.

8. lt. brown    temporal lobe           One of the four visible lobes of the cerebrum

9. dk. brown    auditory area           Area of the temporal lobe that receives and interprets sensory
                                        information from the ears.

10. black       fissure of Sylvius      A landmark of the cerebrum that separates the frontal lobe (above)
                                        from the temporal lobe (below)

11. black       fissure of Rolando      A landmark of the cerebrum that separates the frontal lobe (front)
                                        from the parietal lobe (back)

**              Wernicke’s area         A broad region in the left temporal and parietal lobes; interprets the
                                        meaning of speech by recognizing spoken words; it is active as you
                                        translate words into thoughts
                             Brain Structures Other Than the Cerebrum

12. orange    cerebellum            Working with the cerebrum it coordinates muscles to produce
                                    movement; compares intended movements with what is actually
                                    happening; regulates posture and balance; coordinates complex
                                    sequences of skeletal muscle contractions

13. purple    pons                  Plays a role in synchronizing sight, sound, and muscle movement; bridge
                                    that connects parts of the brain with one another

14. gray      medulla oblongata     considered the most vital part of the entire brain for keeping us alive!
                                    It controls heart action, respiration, and blood vessel diameter; and
                                    contains reflex centers for swallowing, vomiting, coughing, sneezing,
                                    and hiccupping

15. yellow    spinal cord           An extension of the brain giving rise to 31 pairs of spinal nerves.

**behind #8   diencephalon          one of the four major parts of the brain (others= cerebrum,
(internal)                          cerebellum, brain stem); diencephalon consists of hypothalamus,
                                    thalamus, and pineal gland

                                    hypothalamus- controls many important brain activities, most involved
                                    with homeostasis; ex: control ANS, body temperature, pituitary gland
                                    and production of hormones, regulates emotional (such as feelings of
                                    rage, aggression, pain, and pleasure) and behavioral patterns such as
                                    those related to sexual arousal; regulates eating and drinking;
                                    regulates circadian rhythms

                                    thalamus- contributes to motor functions by acting as a relay station
                                    for sensory impulses

                                    pineal gland- size of small pea; secretes melatonin which promotes
                                    sleepiness and contributes to setting the body’s biological clock
Name ________________________________                         Period _______         Date ___________
                                       Brain Lab Worksheet

  1.   Identify and label the four main structural parts of the brain on the following brain.
          a. Brainstem
              1. Medulla oblongata
              2. Pons
              3. Midbrain
          b. Diencephalon
              1. Thalamus
              2. Hypothalamus

          c. Cerebrum
          d. Cerebellum

  2. Which particular part of the brainstem would you miss if you were in a dust storm if you couldn’t

       What other reflexes would you also miss if this part of the brainstem sustains damage?

  3. List some of the emotional and mood relationships for which the hypothalamus is important.

       Why do you think the hypothalamus is sometimes called the “autonomic nervous center”?

  4. Which part is the largest portion of the brain?

  5. Name the 4 lobes of the cerebrum and describe the main functions of each lobe.

       What are the left and right hemispheres of the Cerebrum divided into?

  6. Locate the speech areas of the brain. Which area is important for understanding speech?

       Which area is necessary for actually speaking?

       Which area is an ape lacking? (To answer this one, think about Koko the gorilla. If you don’t know
       who Koko is, ask the teacher!)
7. Why might a hard blow to the back of the head or upper neck be fatal?

8. a) Describe the function of the cerebellum.

   b) List 3 things you would have a difficult time doing if your cerebellum was damaged.

   c) Damage to a particular part of the brain where muscle coordination is disrupted is called ataxia.
   People with ataxia cannot touch the tip of their nose with a finger if they are blindfolded. What area
   of the brain has been damaged?

   d) Why can’t they touch their nose with their finger?

   e) Alcohol is an inhibitory drug; why do people who are intoxicated show signs of ataxia?

9. After suffering a stroke, a patient finds that his speech is seriously affected and the right side of
   the mouth is partially paralyzed. Where would the injury be located if it is in the cerebral cortex of
   the brain?

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