Lab Q01

Question 1

what is the function of neuroglia and what types are there and where?

Answer 1

supporting cells

CNS:
astrocytes
microglia
ependymal cells
oligodendrocytes

PNS:
schwann cells
satellite cells

Question 2

function and characteristic of sensory neuron

Answer 2

unipolar

afferent

receives sensory information

Question 3

function and characteristic of interneuron

Answer 3

multipolar

association neuron

processes and relays info between two other neurons

Question 4

function and characteristic of motor neuron

Answer 4

multipolar

efferent

sends out command to muscle

Question 5

direction of impulse transmission for sensory nerves

Answer 5

afferent

towards CNS

Question 6

direction of impulse transmission for motor nerves

Answer 6

efferent

away from CNS, towards PNS

Question 7

direction of impulse transmission for mixed nerves

Answer 7

afferent & efferent

most nerves in body

Question 8

function and location of endoneurium

Answer 8

surrounds axon / myelin sheath

inner most layer

Question 9

function and location of perineurium

Answer 9

surrounds fascicles

Question 10

function and location of epineurium

Answer 10

forms nerves

binds fascicles together

Question 11

function of astrocytes

Answer 11

maintain blood-brain barrier by stimulating endothelial cells

Question 12

function of microglia

Answer 12

microphages – clear cellular debris and dead neurons. Defenders

Question 13

function of ependymal

Answer 13

forms epithelial lining of ventricles

lining for the CSF

Question 14

function of oligodendrocytes

Answer 14

support and insulate axons

myelin sheath for the CNS