Prep Biology
Name _______________
NERVOUS SYSTEM WEBQUEST
http://yucky.discovery.com/flash/body/pg000136.html
1. Identify nine activities your Nervous System is responsible for:
a. ____________________ b. ___________________ c. ____________________
d. ___________________ e. ____________________ f. ____________________
g. ___________________ h. ____________________ i. ____________________
2. What are the THREE MAIN PARTS OF THE NERVOUS SYSTEM?
a. ____________________ b. ____________________ c. _________________
3. What is a neuron?_______________________________________
4. What is the difference between a SENSORY NEURON and a MOTOR NEURON?
SENSORY NEURON:
MOTOR NEURON:
5. How do electrical messages get from one neuron to the next? ________________
http://www.pbs.org/wnet/brain/3d/index.html
USE THIS 3-D VIDEO TO LEARN ABOUT PARTS OF THE BRAIN:
SECTION OF THE BRAIN
IDENTIFY ONE FUNCTION
FRONTAL LOBE
TEMPORAL LOBE
OCCIPITAL LOBE
CEREBELLUM
BRAIN STEM
http://www.pbs.org/wnet/brain/illusions/movement.html
6. Click on “ACTIVATE ILLUSION” – Does the rotating spiral appear to be expanding or
contracting?
__________________________________
7. STARE AT THIS BLACK AND WHITE SWIRL FOR AT LEAST ONE MINUTE (while its
spinning), THEN LOOK AT AN OBJECT THAT IS STANDING STILL...WHAT HAPPENS?
8. Why does this happen?
9. Look at the other 2 movement illusions – describe what you see:
NOW CLICK ON “COLOR”
10. What do you see at the intersections of the white lines? _____________________
11. Go to Illusion 2: What happens when you change from black lines to white lines?
NOW CLICK ON “ANGLES”
12. Do these 2 lines appear to be the same length? __________
13. Click on “ACTIVATE ILLUSION”: What do you see? _________________________
14. Go to Illusion 2: Which line appears to be longer? ____________________
15. Click on “ACTIVATE ILLUSION”: What do you see? _________________________
16. Go to Illusion 3: Do the lines appear to be crooked or straight? ________________
17. Click on “ACTIVATE ILLUSION” and turn background off: What do you see?
_________________________________________________________________
18. Go to Illusion 5: Is this a perfect circle? __________
19. Click on “ACTIVATE ILLUSION” and turn background off. What do you see?
________________________________________________________
NOW CLICK ON “FORM”
20. Is there anything wrong with Lincoln’s face?
21. Click on “FLIP THE PICTURE” and describes what happens:
22. Go to “ILLUSION 2”: Stare at the cube for at least one minute – what happens?
http://faculty.washington.edu/chudler/nsdivide.html#cns
23. What are the two parts of the CENTRAL NERVOUS SYSTEM?
a. ___________________________ b. _____________________________
CLICK ON “BRAIN FACTS AND FIGURES”
24. Who has the heaviest brain? __________________ The lightest? _____________
25. What % of a stegosaurus dinosaur’s total body weight was the brain? _________%
26. How does this compare to humans?
http://faculty.washington.edu/chudler/vessel.html
27. Although the brain is only about ________% of the total body weight in humans, it
receives ________- ________% of the body's blood supply. Because __________cells
will __________ if the supply of blood which carries ______________ is stopped, the
brain has_________________ for the blood. Even if other organs need blood, the body
attempts to supply the _________________ with a constant flow of
________________.
28. What materials does the blood bring TO the brain?
29. What materials does the blood take AWAY from the brain?
30. What is a stroke?
31. What conditions are linked to strokes?
32. How often do strokes occur in the United States? ______________________
33. The brain uses _______ % of the body’s oxygen supply.
http://faculty.washington.edu/chudler/compare2.html
34. WHO’S BRAIN BELONGS TO WHO?
1. ____________________________
6. _________________________
2. ____________________________
7. _________________________
3. ___________________________
8. _________________________
4. ____________________________
9. _________________________
5. ___________________________
http://faculty.washington.edu/chudler/words.html
Take the STROOP EFFECT TEST....
READ the DIRECTIONS and Write a SUMMARY OF THE DIRECTIONS BELOW:
NOW CLICK ON “RUN EXPERIMENT”
35. What was your time on the FIRST TEST? _____________
36. What was your time on the SECOND TEST? __________
37. Which test took you LONGER? _______________
38. EXPLAIN what the STROOP EFFECT is:
http://faculty.washington.edu/chudler/ffacts.html
Facts
39. The adult human brain weighs about ________ pounds (1,300-1,400 g).
40. The adult human brain is about _________ of the total body weight.
41. The elephant brain weighs about ____________ g.
42. The cat brain weighs about ____________ g.
43. The human brain has about 100,000,000,000 (100 _______________) neurons.
44. The _______________ brain has about 300 million neurons.
45. The world record for time without sleep is ___________ hours (_____ days) by
Randy Gardner in 1965. The record for time awake is attributed to Mrs. Maureen Weston.
She apparently spent ____________ hours (______ days, 17 hours) awake in a rocking
chair.
46. Unconsciousness will occur after ______________seconds after loss of blood supply
to the brain.
47. There are about ____________________neurons in the human spinal cord.
48. The human spinal cord is ______________cm long in men and ___________ cm long
in women.
49. ______________________ can occur if people are exposed to sounds above 90 db
for an extended period of time.
50. The total number of human taste buds (tongue, palate, cheeks) is about
____________________.
Now for some selected facts about amazing animal senses:
51. Bats can find food (insects) up to _______________away and get information about
the type of insect using _____________________.
52. The eyes of the chameleon can move independently. Therefore, it can see
_____________________________________________________________.
53. ______________________ have hair on claws and other parts of the body to
detect water current and vibration.
54. Like bats, _________________________ use echolocation for movement and
locating objects.
55. Each eye of the dragonfly contains _______________________ lenses.
56. ___________________ can have as many as 12 eyes.
http://faculty.washington.edu/chudler/java/brconc.html
PLAY BRAIN CONCENTRATION:
ONCE YOU ARE FINISHED, HAVE A TEACHER INITIAL HERE____________.