L5 NS cells and basic cell org

Question 1

what are the two cells that make up the nervous system?

Answer 1

neurons and glia
N: larger, communicate and have long processes
G: support neuron shape “scaffolding, maintain ionic environment, make myelin

Question 2

T or F, if the plasma membrane dies, the cell dies?

Answer 2

T

Question 3

are the mitochondria responsible for aerobic or anerobic metabolism?

Answer 3

aerobic

Question 4

cytoskeleton and its 3 major components

Answer 4

protein network for structural support, transport, and cellular movement
-microtubules
-microfilaments
-intermediate filaments

Question 5

what are the “sensors” on neurons?

Answer 5

dendrites

Question 6

where is neuron output?

Answer 6

axon

Question 7

microtubules

Answer 7

maintain cell shape and control axonal transport, movement of cilia, flagella, and chromosomes
-long hollow tubes formed by slightly different variants of small, globular TUBULIN molecules

Question 8

what direction is axonal transport and what is transported?

Answer 8

-bidirectional
-large molecules and vesicles along axons

Question 9

anterograde

Answer 9

away from body

Question 10

retrograde

Answer 10

toward body

Question 11

which is faster retrograde or anterograde?

Answer 11

retrograde