cellular basis of neural function

Question 1

3 major ideas (1700s)

Answer 1

1. spirits ran through (fluid theory)
2. mini explosions via fermentation
3. vibrations

Question 2

why were the 3 major ideas wrong?

Answer 2

1. limbs did not increase in vol when activated
2. nerves cut underwater didn’t bubble up
3. ligation of nerves didn’t make them accumulate fluid

Question 3

18th century was the rise of what theory? and why?

Answer 3

electricity
b/c: certain fish deliver external electricity

Question 4

galvani: what did he believe & experiment

Answer 4

electricity
stimulated frog leg via electrivity

Question 5

aldini: what did he experiment?

Answer 5

activated facial muscles of decapitated executed criminals via stimulating brain

Question 6

conductance

Answer 6

measures current

Question 7

purkinje

Answer 7

describes layers of neural tissue via silver stain
first to suggest: network of discrete cells

Question 8

golgi’s silver stain

Answer 8

could see structure of neurons with branching

Question 9

cajal: improved silver stain

Answer 9

told us about structure of neurons more