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Histology > Introduction To Histology > Flashcards

Introduction To Histology Flashcards

1
Q

What is the most commonly used dye combination

A

Haematoxylin and Eosin (H&E)

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2
Q

What colour does haematoxylin and eosin stain cytoplasm and nuclei

A

Nuclei stain blue and cytoplasm stains pink

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3
Q

What also stains pink when using a H&E stain

A

Most extra-cellular fibres such as collagen and elastic stain pink with H&E stain

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4
Q

What is PAS used to stain

A

Sugars

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5
Q

What is van Gieson used to stain

A

Elastic

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6
Q

What is Alcian blue used to stain

A

Mucins

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7
Q

What is trichromatic stain used for

A

It is used to stain 3 types of cells to visualise the difference between them

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8
Q

What is an example of a small cell

A

A lymphocyte which is about 10 micrometers in diameter

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9
Q

What is an example of a large cell

A

A motor neuron which is about 100 micrometers wide with axons up to 1 meter in length

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10
Q

What shape are these cells

A

Rounded

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11
Q

What shape are these cells

A

Polygonal

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12
Q

What shape are these cells

A

Fusiform

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13
Q

What shape are these cells

A

Columnar

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14
Q

What shape are these cells

A

Cuboidal

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15
Q

What shape are these cells

A

Squamous

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16
Q

In general what is the difference between metabolically active and inactive cells

A

Metabolically active cells are larger than metabolically inactive cells

Metabolically active cells often have nucleoli

17
Q

What is the life span of tissues lining the gut

A

Days

18
Q

What is the life span of tissues such as blood, skin and connective tissues

A

Months

19
Q

What is the lifespan of bones and tendons

A

Years

20
Q

What is the life span of skeletal muscle

A

Nearly your whole life

21
Q

What is the life span of nerves, brain, cardiac muscle and germ cells

A

They last your whole life

22
Q

What are the arrows pointing at

A

Nucleolus

23
Q

What is this showing

A

Mitochondria

24
Q

What is this showing

A

Rough endoplasmic reticulum

25
Q

What is this showing

A

Smooth endoplasmic reticulum

26
Q

What is this showing

A

Golgi apparatus

27
Q

What is this showing

A

Lysosomes

28
Q

How big are microfilaments and what is an example

A

Microfilaments are about 5 micrometers
Actin is an example of a Microfilament

29
Q

How big are microtubules and what is an example

A

Microtubules are 25 micrometers
Tubulin is an example

30
Q

What calls don’t have any microtubules in

A

Erythrocytes

31
Q

How big are intermediate filaments

A

10 diameters

32
Q

Where are the intermediate filaments cytokeratins found

A

Epithelial cells

33
Q

Where are the intermediate filament desmin found

A

Myocytes

34
Q

Where are the intermediate filaments glial fibrillary acidic proteins found

A

Astrocytic glial cells

35
Q

Where are the intermediate filaments neurofilament proteins found

A

Neurons

36
Q

Where are the intermediate filaments nuclear laminin found

A

Nuclei of all cells

37
Q

Where are the vimentin intermediate filaments found

A

Mesodermal cells

38
Q

What are the different types of tissues

A

Epithelial tissue
Muscle tissue
Supporting tissue
Nerve tissue
Germ cell tissue

Histology (18 decks)

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