day 4: organelles, neurons + glia

Question 1

what purpose do spines on the dendrites serve

Answer 1

add surface area for synaptic connections

Question 2

what is several axons bundled together called (inside and outside CNS)

Answer 2

inside: tract
outside: nerve

Question 3

what are the gaps between myelin sheaths called

Answer 3

nodes of ranvier

Question 4

what are the nodes of ranvier and what is their funciton

Answer 4

gaps between myelinated sheaths, ‘regenerate’ action potential as it travels down axon

Question 5

what is the movement of molecules within an axon called

Answer 5

axoplasmic transport

Question 6

what type of axoplasmic transport is moving from cell body to terminal

Answer 6

anterograde transport

Question 7

what type of axoplasmic transport is moving from the terminal to the cell body

Answer 7

retrograde transport

Question 8

what are the protiens that move vesicles etc in an anterograde direction

Answer 8

Dyenin

Question 9

What are the proteins that move vesicles etc in a retrograde direction

Answer 9

Kinesin