intro video

Question 1

describe the embryological development of the nervous system.

Answer 1

neural tube forms as dorsal indentation/groove in ectoderm of embryo
notocord induces formation of neural tube
neural crest cells form adjacent to where neural tube will close

Question 2

what does a neuronal nucleus look like (histologically)?

Answer 2

very euchromatic with prominent nucleolus
cytoplasm has lots of rER and ribosomes = Nissel bodies in neurons - make it basophilic
many mitochondria
no ribosomes in axons

Question 3

how are things transported to the end of the axon?

Answer 3

along microtubules
kinesin moves things out
dynein moves things in