Nervous System

Question 1

Central Nervous System

Answer 1

Brain, spinal cord

Question 2

Peripheral Nervous System

Answer 2

Nerves ( Cranial, peripheral)

Question 3

main functional unit of CNS

Answer 3

Neurons

Question 4

supporting cells/ support the neurons

Answer 4

Neuroglial cells

Question 5

perikaryon/soma

Answer 5

Cell body

Question 6

another term for cell membrane of neuron

Answer 6

Neurolemma

Question 7

specialized to receive stimuli from other neurons at unique sites

Answer 7

Dendrites

Question 8

the one receiving signals towards the body

Answer 8

Dendrites

Question 9

receive electrical signals

Answer 9

synapses

Question 10

What are the electrolytes

Answer 10

sodium, potassium, chloride, magnesium.

Question 11

part of the neuron that transmits electrical impulses, be received by other neurons

Answer 11

Axons

Question 12

same function as ribosomes

Answer 12

Nissl bodies

Question 13

To demonstrate yung affected nissl bodies sa brain we have to use two fixatives:

Answer 13

Carnoy’s fixative, Acetone

Question 14

cells covering the axons and they have nucleus

Answer 14

myelin sheath

Question 15

with one axon and two or more dendrites

Answer 15

Multipolar Neurons

Question 16

with one dendrite and one axon

Answer 16

Bipolar Neurons

Question 17

comprise the sensory organs

Answer 17

Bipolar Neurons

Question 18

what are the example of sensory organs in bipolar neurons?

Answer 18

retina, olfactory epithelium, inner ear

Question 19

have a single process that bifurcates close to the perikaryon

Answer 19

Unipolar

Question 20

with many dendrites but no true axon; do not produce action potentials; regulate electrical changes of adjacent CNS neurons

Answer 20

anaxonic

Question 21

predominant glial cells in the CNS

Answer 21

Oligodendrites

Question 22

with long delicate processes; abundant in white matter

Answer 22

Fibrous

Question 23

with shorter processes; predominant in the grey matter

Answer 23

Protoplasmic

Question 24

with shorter processes; predominant in the grey matter

Answer 24

Protoplasmic

Question 25

similar to epithelial cells

Answer 25

Ependymal

Question 26

they came from bone marrow (macrophages), Macrophages --> monocyte: bone marrow Macrophages - specialized that stay in CNS

Answer 26

Microglial cells

Question 27

Myelinates and insulates CNS axons

Answer 27

Oligodendrites

Question 28

Allows faster action potential propagation along axons in the CNS

Answer 28

Oligodendrites

Question 29

is composed of sphingolipids and myelin.

Answer 29

Myelin sheath (sphingomyelin)

Question 30

They act as covering sa neurons.

Answer 30

Myelin sheath

Question 31

___ is a protein and____ is a type of fat.

Answer 31

myelin, sphingolipid

Question 32

Forms part of the Blood Brain Barrier

Answer 32

Astrocytes

Question 33

Regulates interstitial fluid composition

Answer 33

Astrocytes

Question 34

Provides structural support and organization to the CNS

Answer 34

Astrocytes

Question 35

* Assists with neuronal development * Replicates to occupy space of dying neurons

Answer 35

Astrocytes

Question 36

is the wall preventing the flow of blood sa brain

Answer 36

Blood brain barrier

Question 37

Ependymal Cells

Answer 37

* Columnar or cuboidal cells that line the fluid-filled ventricles of the brain and the central canal of the spinal cord * Lines ventricles of brain and central canal of spinal cord * Assists in production and circulation of CSF

Question 38

Microglial Cells

Answer 38

* Phagocytic cells that move through the CNS * Protects the CNS by engulfing infectious agents and other potentially harmful substances

Question 39

Schwann Cells

Answer 39

* Neurolemmocytes * Surround and insulate PNS axons and myelinate those having large diameters * Allows for faster action potential propagation along an axon in the PNS

Question 40

Satellite cells

Answer 40

* Electrically insulates PNS cell bodies * Regulates nutrient and waste exchange for cell bodies in ganglia

Question 41

Myelin production, electrical insulation

Answer 41

Oligodendrocyte

Question 42

Structural and metabolic support of neurons, especially at synapses; repair processes.

Answer 42

Astrocyte

Question 43

Aid production and movement of CSF

Answer 43

Ependymal cell

Question 44

Defense and immune-related activities

Answer 44

Microglia

Question 45

Myelin production, electrical defense

Answer 45

Schwann cell

Question 46

Structural and metabolic support for neuronal cell bodies.

Answer 46

Satellite cells

Question 47

You can able to see cell bodies/ perikaryon, glial cells of neurons

Answer 47

Grey matter

Question 48

you can usually see axons, diff. myelin sheath of neurons

Answer 48

White matter

Question 49

inner-most layer of the cerebellum

Answer 49

medulla

Question 50

largest part of the brain

Answer 50

cerebrum

Question 51

called as little brain

Answer 51

cerebellum

Question 52

send motor commands from brain to body

Answer 52

spinal cord

Question 53

specialize to generate and conduct nerve impulses from other cells

Answer 53

axons