lab 3 and lab 4 neuron and glial histology

Question 1

nissl bodies

Answer 1

aka nissl substance is a large granular body found in neurons, its essentially RER with rosettes of free ribosomes–> site of protein synthesis

Can be seen in the soma and dendrites of neurons, but NOT in the axon or axon hillock (connects cell body to the axon

astrocytes are larger and paler than oligo

Question 2

unmyelinated axon

Answer 2

is an axon embedded in schwann cell cytoplasm but not wrapped in concentic circles

Question 3

osmotic acid

Answer 3

a heavy metal that stains lipids stains the epi, peri and endo neurium