module 2

Question 1

at the beginning of an axon what ion gate is present more then anywhere in the neuron

Answer 1

sodium gated ion channel

Question 2

does the soma and dendrite have the same material as the dendrite initial part ? yes or no

Answer 2

yes , hence unlike the axon beggining the begginning of a dendrite has similar features as the soma body with rer, golgi etc. overall this is called polarisation

Question 3

what forms the cytoskeleton ?

Answer 3

fibers and asssociated proteins

Question 4

what is the function of the cytoskeleton in a neuron ?

Answer 4

it provides internal framework, shape, distribution/localisation/anchoring of organelles and membrane protein scaffolding

Question 5

what is the meaning of dynamic structure in a neuron cytoskeleton context ?

Answer 5

its a dynamic structure eg microtubules and actin change during growth and development and plasticity.

Question 6

what is the neuronal cytoskeleton made of ?

Answer 6

microtubule, neurofilament and microfilaments

Question 7

give an example of a microtubule

Answer 7

tubulin filaments

Question 8

give an example of neurofilaments

Answer 8

intermediate filament

Question 9

give an example of microfilament

Answer 9

f-actin filamentous and g actin - monomeric.