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02 Cells of NS > 02 Cells of NS > Flashcards

02 Cells of NS Flashcards

1
Q

005-At what magnification are the cell bodies (ie.layers) of the retina first visible?

A

X100

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2
Q

006-What magnification is required to view a single photoreceptor?

A

x1000. This is where we typically view structures of the retina

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3
Q

010-In order to view on the molecular level, what magnification should be used?

A

x10,000,000

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4
Q

012- Which two chemicals are used to preserve tissues for histology?

A

Formaldehyde and Paraffin

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5
Q

012-Which type of wax do you need to hold the structure of “jello” like tissue together?

A

Paraffin wax

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6
Q

013-Who showed that neurons were all in one network?

A

Golgi

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7
Q

014-What structures do the Nissl Stain and Weil Stain show?

A

Nissl - individual structures, only in the cell bodies, primarily the ER Weil - Myelinated tracts

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8
Q

016-Which neuronal structure is responsible for outputting signals?

A

Axon

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9
Q

016-Which neuronal structure is responsible for inputting signals?

A

Dendrites

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10
Q

017-Which neuronal structure has the nucleus, mitochondria, golgi apparatus, ribosomes, and other organelles?

A

Soma

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11
Q

017-Which ion is high in concentration in the cytosol?

A

Salty Potassium

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12
Q

016-True or False. Purkinje cell only have 2 branches for retrieving a signal?

A

False, there are many branches

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13
Q

020-What type of organelle has a function of packaging and transporting ?

A

Golgi Apparatus

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14
Q

018-Where are DNA, RNA and mRNA located inside the cell?

A

Within the Nucleus

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15
Q

016-Neurons are capable of reproducing. True of False?

A

True in the olfactory system & the hippocampus. However, neurons are sensitive if there is a lack of oxygen, they will be non-functional.

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16
Q

021-T/F. An antibody can stain certain parts of the brain.

A

True; and you can also attach something to Ab to see where it is going in the brain

17
Q

022-The neuronal membrane has numerous ___________ inside the cell that help transport things from inside the cell to the outside.

A

channels

18
Q

023,025,026-Place the following in order of size. (largest to smallest) Microfilaments, Neurofilaments, and microtubules.

A

Microtubles (20nm); Neurofilaments (10nm); Microfilaments(5nm)

19
Q

023-Name two functions of the microtubules.

A

helps hold the axon process together and helps transport materials from the soma to other parts of the cell

20
Q

024-During Alzhimer’s, which cytoskeleton structure is damaged?

A

microtubules (slide 24) (Added slide presented in lecture)

21
Q

025-Name one function of microfilaments.

A

Microfilaments are a meshwork of proteins that helps hold the wall of the membrane in place

22
Q

026-T/F. Neurofilaments are a helpful part of the transport system.

A

True. Are not as helpful as microtubules but are a part of transport system

23
Q

027-The speed of something moving down the axon varies with the __________.

A

diameter; think of this like a hose - larger pushes more water (faster).

24
Q

028-What is the area that separates the axon from the cell body?

A

axon hillock

25
Q

029-What are terminal boutons? (hint: they contain neurotransmitters in vesicles?

A

synaptic endings

26
Q

030- What is retrograde & anterograde motor?

A

anterograde: transporting from soma to neurite; retrograde: left over products go from the axon back to the cell body

27
Q

032-How do dendrites change structure to reinforce the ability to accept neurotransmitters?

A

forming dendritic spines

28
Q

033- What is the classification of a long axon length?

A

Golgi Type I

29
Q

033-Golgi type II is a classification of what axon length? Short or long?

A

Short

30
Q

034-Which neurite is used for sensory systems?

A

Bipolar

31
Q

035-Which of these is the glial cell that is most abundant along with being the myelin sheath in the Peripheral Nervous system?

A

Schwann Cell

32
Q

039-What is the myelin sheath cell in the spinal cord?

A

Oligodendrocyte

33
Q

037-What type of glial cell regulates the chemical compound of the intracellular space?

A

Astrocyte

34
Q

038-The gaps between myelin sheath cells are known as?

A

Node of Ranvier

35
Q

041-What is ependymal cells?

A

a type of cell that wraps around ventricles of the brain.

36
Q

041-What is a type of cell that gathers up and processes neuronal dead tissue?

A

microglia cell

02 Cells of NS (1 decks)

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