exam 4 - caffeine

Question 1

does caffeine pass through blood brain barrier?

Answer 1

yes

Question 2

caffeine is easily absorbed via digestive system due to ____ solubility

Answer 2

lipid

Question 3

most caffeine metabolites are ____active

Answer 3

psycho

Question 4

the psychoactive metabolites of caffeine are called ______

Answer 4

xanthines

Question 5

xanthines, the psychoactive metabolities of caffeine, are _______ (found in chocolate, 50x more than caffeine) and ____ (useful for asthma treatment)

Answer 5

theobromine, theophylline

Question 6

for most people who aren’t sensitive, caffeine produces ____ capacity for muscular work and ____ intellectual task performance.

Answer 6

increased

Question 7

Caffeineism: (in high doses), caffeine negatively affects _____

Answer 7

non users

Question 8

a difference between caffeine and other
psychostimulants is that for usual/moderate doses, caffeine’s effects on blood pressure and heart rate are
_______

(1) this is a physical/psychological effect!

Answer 8

inconsistent

Question 9

(2) more physical/psychological effects of caffeine (usual/mod doses) include:

acting INDIRECTLY on ANS (vasoconstrictor) to _____ HR and BP

Answer 9

increase

Question 10

(3) more physical/psychological effects of caffeine (usual/mod doses) include:

Direct actions on the heart to _____ HR and
vasodilation (_______ BP)

Answer 10

both decrease

Question 11

(4) more physical/psychological effects of caffeine (usual/mod doses) include:

______bronchial tubes (theophylline is used to treat asthma)

Answer 11

dilates

Question 12

(5) more physical/psychological effects of caffeine (usual/mod doses) include:

_______(effective in the treatment of
headaches)

Answer 12

vasoconstrictor