3A Nervous Tissue

Question 1

rough ER that are basophilic granular masses

Answer 1

nissl bodies

Question 2

cytoplasmic organelle that distributes protein throughout the cell

Answer 2

smooth ER

Question 3

prevent degradation of the neuron

Answer 3

peroxisomes

Question 4

inclusio. that are energy reserves for neurons

Answer 4

fat droplets

Question 5

end result of lysosomal activity

Answer 5

lipofuscin granules/lipochrome

Question 6

melanin granules are found in the cells of?

Answer 6

substantia nigra
locus coeruleus
spinal and sympathetic ganglia

Question 7

pigment granule that is characteristic of neurons in the globus pallidus

Answer 7

iron

Question 8

cytoskeleton

Answer 8

neurofibrils

Question 9

abundant in axon and provide internal support for the cell; 10nm in diameter

Answer 9

intermediate filament/ neurofilament

Question 10

intracellular transport of organelles and vesicles, provides internal support for the neurons, and strengthens synapses

Answer 10

microtubules/neurotubules

Question 11

transmit impulses away from the cell body

Answer 11

axon

Question 12

longest nerve in the human body

Answer 12

sciatic nerve

Question 13

no nissl granules but has smooth ER, mitochondria and neurofibrils

Answer 13

axon

Question 14

acts as the site for synapses or neuron communication

Answer 14

terminal bouton

Question 15

swelling at the end

Answer 15

bouton terminaux

Question 16

swelling along the course

Answer 16

bouton en passant

Question 17

perikaryon to axon terminal

Answer 17

anterograde; involves kinesin

Question 18

axon terminal to perikaryon

Answer 18

retrograde; involves dynein

Question 19

form thin sleeves around the axon

Answer 19

neurilemmal sheath/ sheaths of schwann

Question 20

sheath that is highly refractile in fresh specimen and present in larger axons

Answer 20

myelin sheath

Question 21

myelin sheath is color black when stained using:

Answer 21

osmium tetroxide

Question 22

gaps between myelinated axons

Answer 22

nodes of ranvier

Question 23

envelops schwann cells

Answer 23

basal lamina

Question 24

forms myelin in the PNS

Answer 24

schwann cells

Question 25

forms myelin in the CNS

Answer 25

oligodendrocytes

Question 26

transmits impulses towards the cell body

Answer 26

dendrites

Question 27

acts as the most receptive surface in the neuron

Answer 27

dendrites

Question 28

has nissl granules, mitochondria, and neurofibrils but no golgi complex

Answer 28

dendrites

Question 29

type of neuron that exists only during early embryonic development

Answer 29

unipolar