Drug Unit Study Guide by mikesanye

VIEWS: 3 PAGES: 5

									                                                                               Name ________________________


                 Brain Anatomy and Physiology                                                     Period _____


Please use this website to complete the following questions about the brain:

                                http://faculty.washington.edu/chudler/introb.html

Find the table titled Brain Basics towards the bottom of page
   1. What are the functions of the cerebral cortex?


   2. The name cortex comes from the name for bark. How does this relate to the structure of the cerebral
      cortex?


   3. What are the functions of the cerebellum?


   4. What are the functions of the brain stem?


   5. What are the functions of the hypothalamus?


   6. Where does the thalamus relay information to?


Lobes of Brain
   7. How much does the average brain weigh? ____


   8. What part of the brain is divided up into 4 lobes? _______________


   9. What is the function of the frontal lobe?


   10. What is the function of the parietal lobe?


   11. What is the function of the temporal lobe?


   12. What is the function of the occipital lobe?


Functional Divisions
   13. List the function of these critical areas of the cerebral cortex:
                  a. prefrontal cortex -

                   b. primary motor cortex -

                   c. Wernicke’s area -

                   d. Broca’s area -
Brain Size
   14. An elephant’s brain is ~4 times bigger than ours. Why is it necessary for their brain to be larger?


   15. What are some differences between higher evolved animals and the lower animals?


   16. What part of the body takes up a major portion of the primary somatosensory cortex?


Male vs. Female Brain
   17. What are the 3 things that studies have looked at for differences in male and female brains?


   18. Who has the bigger brain at birth, and how much larger is it?


   19. What is the difference in weight of adult brains of men and women?


   20. What is the difference in the corpus callosum?


   21. What are the differences in the hypothalamus?


Brain development
   22. How many of your neurons are present at birth?


   23. After birth, what cells of the brain are responsible for growth?



Blood-Brain-Barrier
   24. How was the BBB discovered?


   25. What are the 3 functions of the BBB?
                   1) ______________________________
                    2) ______________________________
                    3) ______________________________

   26. What types of molecules do not pass easily through BBB? What molecules CAN pass through?



   27. What are the 5 things on the box (cartoon on the right) that can open the BBB?



Ventricles
   28. What produces CSF?
   29. What are the 4 functions of CSF?
                   1) ______________________________
                    2) ______________________________
                    3) ______________________________
                    4) ______________________________



Blood Supply of the Brain
   30. The brain is 2% of your total body weight, but receives ______% of the blood supply.


   31. What are the two arteries that supply blood to the brain?



   32. What are the two major causes of a stroke?



   33. What is the differences between and embolism and a thrombosis?



                                                DRUGS
Please use the following website to answer the following questions about drugs:

                           http://www.drugabuse.gov/scienceofaddiction/brain.html

1. What is "drug tolerance?"



2. How do drugs like marijuana and heroin work in the brain?



3. How do drugs like amphetamine and cocaine work in the brain?



4. How do drugs use dopamine to produce pleasure?



5. How do people become addicted to drugs? Why are drugs more addictive than natural rewards?



6. What happens to your brain if you keep taking drugs?
7. What are some of the medical side effects of drug addiction?



8. What are three of the harmful consequences to others that are associated with addiction?



9. Please take notes on each of the following abused substances.

       Nicotine -



       Alcohol -



       Marijuana -



       Inhalants -



       Cocaine -



       Amphetamines -



       Ecstasy (MDMA) -



       LSD -



       Heroin -



       Prescription medications -



       Steroids -
You are working in an emergency room dedicated to victims of drug abuse. Use the following clues to try to
determine which drug they were using. There may be more than one answer for a victim - save your evidence
in case you need to argue for your choices later. If you are not sure, please use the following website or any
other websites that have been approved by Mrs. Smutz to guide your decision about which drug was
abused.

                                   http://www.drugabuse.gov/drugpages.html


                      Victims' Symptoms                                          Drug Abused

increased heart rate and blood pressure, impaired motor               10.
function/memory loss; numbness; nausea/vomiting;—at high
doses, delirium, depression, respiratory depression and arrest
altered states of perception and feeling; nausea/chronic mental       11.
disorders, persisting perception disorder (flashbacks); increased
body temperature, heart rate, blood pressure; loss of appetite,
sleeplessness, numbness, weakness, tremors
increased heart rate, blood pressure, metabolism; feelings of         12.
exhilaration, energy, increased mental alertness/rapid or irregular
heart beat; reduced appetite, weight loss, heart failure; mild
hallucinogenic effects, increased tactile sensitivity, empathic
feelings, hyperthermia/impaired memory and learning
stimulation, loss of inhibition; headache; nausea or vomiting;        13.
slurred speech, loss of motor coordination;
wheezing/unconsciousness, cramps, weight loss, muscle
weakness, depression, memory impairment, damage to
cardiovascular and nervous systems, sudden death
no intoxication effects/hypertension, blood clotting and              14.
cholesterol changes, liver cysts and cancer, kidney cancer,
hostility and aggression, acne; adolescents, premature stoppage
of growth; in males, prostate cancer, reduced sperm production,
shrunken testicles, breast enlargement; in females, menstrual
irregularities, development of beard and other masculine
characteristics
euphoria, slowed thinking and reaction time, confusion, impaired      15.
balance and coordination/cough, frequent respiratory infections;
impaired memory and learning; increased heart rate, anxiety;
panic attacks; tolerance, addiction
tolerance, addiction; additional effects attributable to tobacco      16.
exposure -adverse pregnancy outcomes, chronic lung disease,
cardiovascular disease, stroke, cancer

								
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