part 2

Question 1

concept of neuroglial cells

Answer 1

a,k,a, glial cells. Specialized cells found in the brain and spinal cord supporting the neurons

Question 2

glial cell: astrocyte

Answer 2

found in CNS. they provide mechanical support and repair of damaged areas

Question 3

glial cell: microglial cell

Answer 3

found in CNS. engulf and destroy microbes and cell debris

Question 4

how is microglial cell different from other cells

Answer 4

all the nervous system is made of ectoderm, except the microglial cells, they are mesodermal in origin

Question 5

glial cells: oligodendrocytes

Answer 5

found in CNS. form myelin sheath around the axon

Question 6

glial cells: Schwann cells

Answer 6

found in PNS. forms myelin sheath around the axon

Question 7

myelinated neurons

Answer 7

enveloped with Schwann cells which form a myelin sheath around the axon . gaps between two adjacent myelin sheaths are called nodes of Ranvier

Question 8

unmyelinated neurons

Answer 8

enveloped with Schwann cells that does not form a myelin sheath around the axon. the Schwann cell sheath is called Neurilemma