Neurons

Question 1

What are the three properties of neurons?

Answer 1

excitable, conductive, secretory

Question 2

Who developed the ‘reticular theory’ and the Golgi stain?

Answer 2

Camillo Golgi

Question 3

Who formed the ‘Neuron Doctrine’ and refined the Golgi stain?

Answer 3

Santiago Ramon y Cajal

Question 4

What two processes can microtubules undergo? What do they look like?

Answer 4

polymerization and depolymerisation

tubulin, longitudinal down axon length

Question 5

What are neurofilaments for?

Answer 5

strength

Question 6

What are microfilaments for?

Answer 6

shape

anchor to membrane

Question 7

What is axoplasmic transport, what chemicals are involved and how much distance is covered each day?

Answer 7

chemical from soma to axon terminal
kinesin = anterograde (walks it down)
dynein = retrograde (walks it back)
1000 mm a day

Question 8

What are two types of multipolar neurons and what do they look like?

Answer 8

purkinje cell - flask-like soma, many thread-like dendrites, single axon

pyramidal cell - pyramid shaped soma, large apical dendrite with multiple basal dendrites, single axon