HISTOLOGY (Nervous Tissue)

Question 1

Nerve Cells

Answer 1

Neurons

Question 2

Supporting Cells

Answer 2

Neuroglial or Glial Cells

Question 3

Functional units of nervous tissue

Answer 3

neurons

Question 4

Cell body

Answer 4

soma

Question 5

draw out from the SOMA

Answer 5

PROCESSES

Question 6

BASOPHILIC

Answer 6

Neuroplasm

Question 7

structurally the same as the cell
membrane of the other cell

Answer 7

Neurolemma

Question 8

large, spherical or ovoid, centrally located

Answer 8

nucleus

Question 9

Deeply basophilic, granular masses that are very
prominent in the neuroplasm

Answer 9

nissl bodies

Question 10

fibrillar stuctures in NEURON

Answer 10

NEUROFIBRILS

Question 11

finest (F-actin)

Answer 11

Microfilaments

Question 12

abundant in axon w/c provides internal support
for the cell and fix the diameter of DENDRITES &
AXONS

Answer 12

Intermediate Filaments

Question 13

THICKEST, strengthen SYNAPSES, intracellular
transport of organelles and secretory vesicles

Answer 13

Microtubules

Question 14

Conducts impulses AWAY from the cell body

Answer 14

axon

Question 15

Carries impulses TOWARDS the cell body

Answer 15

dendrite

Question 16

records stimuli and transmit impulse to CNS

Answer 16

SENSORY NEURONS

Question 17

transmit impulse from the CNS to the effector cells

Answer 17

• MOTOR NEURONS

Question 18

convey impulse from one neuron to
another

Answer 18

INTERNEURONS

Question 19

more than one is present in a neuron

Answer 19

dendrites

Question 20

from Perikaryon to Axon term

Answer 20

Anterograde

Question 21

from Axon term to Perikaryon

Answer 21

Retrograde

Question 22

sheath of cells enveloping the axon

Answer 22

NEURILEMMAL SHEATH

Question 23

nervous tissue outside the brain and the spinal cord, enveloped
by some amount of Connective Tissue

Answer 23

PNS (Peripheral Nervous System)

Question 24

formed by flattened cells w/flattened nuclei

Answer 24

SCHWANN CELLS

Question 25

highly refractile in fresh specimen, black

Answer 25

myelin sheath

Question 26

separates layers of Myelin Sheath

Answer 26

INCISURES/CLEFT OF SCHMIDTLANTERMANN

Question 27

form segments of myelin sheaths of numerous neurons, not surrounded by basal lamina

Answer 27

Oligodendrocytes

Question 28

occur rarely, consist of GAP JUNCTION

Answer 28

electrical

Question 29

more common, neurotransmitter

Answer 29

CHEMICAL

Question 30

communicate the impulse

Answer 30

Presynaptic Neuron

Question 31

receives the impulse

Answer 31

Postsynaptic Neuron

Question 32

supporting cells of the Nervous Tissue

Answer 32

glial cells

Question 33

LARGEST and most NUMEROUS, star-shaped

Answer 33

ASTROCYTES

Question 34

smaller, fewer than Astrocytes

Answer 34

OLIGODENDROCYTES

Question 35

smaller than Ast. & oligo.

Answer 35

MICROGLIA

Question 36

cuboidal cells that possess short cilia and microvilli

Answer 36

EPENDYMAL CELLS

Question 37

form the neurilemmal and myelin sheaths of peripheral nerves

Answer 37

SCHWANN CELLS

Question 38

small, flattened cells that surround the cell bodies of neurons that are in GANGLIA

Answer 38

SATELLITE CELLS

Question 39

contains neuron cell bodies, dendrites, unmyelinated axons, glial cells and synapses

Answer 39

gray matter

Question 40

contains myelinated axons and oligodendrocytes

Answer 40

white matter

Question 41

gray matter outside (and way deep inside), white matter inside

Answer 41

brain

Question 42

white matter outside, gray matter inside

Answer 42

spinal cord

Question 43

are the most abundant neurons in the cerebral cortex.

Answer 43

PYRAMIDAL NEURONS

Question 44

has 6 poorly defined layers

Answer 44

CEREBRAL CORTEX

Question 45

Outermost layer. Dense connective tissue.

Answer 45

Dura mater

Question 46

Middle layer

Answer 46

Arachnoid

Question 47

Innermost layer. Loose connective tissue tightly adherent to surface of brain/spinal cord.

Answer 47

Pia mater

Question 48

At night, space around arteries opens, allowing CSF to flow in

Answer 48

GLYMPHATIC SYSTEM