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21 fall: histology > lab 3 connective tissue continued > Flashcards

lab 3 connective tissue continued Flashcards

1
Q

Elastic Tissue can be found:

A 
ligaments of the vertebral column 
the suspensory ligament of the penis
walls of arteries
pulmonary alveolar septa
vocal cords
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2
Q

Weigert’s stains elastic fibers ____

while orcein colors elastic fibers ___

A

purple or dark blue

red

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3
Q

Reticular tissue is characterized by an abundance of ____

A

reticular fibers

These fibers cannot be distinguished from other collagenous fibers in H&E preparations.

However, reticular fibers are PAS positive (PAS = Periodic Acid-Schiff, a staining method used to detect structures with a high proportion of glycogen or carbohydrate macromolecules).

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4
Q

Reticular fibers ____ (PAS = Periodic Acid-Schiff, a staining method used to detect structures with a high proportion of glycogen or carbohydrate macromolecules).

Reticular fibers are also ____ (i.e., contain cells that reduce silver solution to metallic silver, a staining method that is used to identify proteins, like collagen III, i.e. reticular fibers)

A

PAS positive

argyrophilic

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5
Q

reticular fibers can be identified using ___

A

PAS

silver

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6
Q

What organs are supported by a framework of reticular tissue?

A

kidney

spleen?

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7
Q

Adipose Tissue consists of collections of adipocytes in ___ CT.

A

loose

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8
Q

why do adipose tissue look empty?

A

Adipocytes accumulate large deposits of lipids that are dissolved and extracted during the preparation of the slide, leaving behind a large empty vacuole surrounded by a thin rim of cytoplasm.

Sometimes the flattened nucleus of the adipocyte may be seen

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9
Q

he CT of the umbilical cord is an example of ___

A

mucous tissue

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10
Q

the mucous tissue of the umbilical cord, has a ___ consistency and consists of an amorphous matrix containing ____ as well as a few elastic and reticular fibers.

A

jellly-like

collagenous fibers

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11
Q

jejunum

A
  1. Mucosa (containing loose areolar connective tissue)
  2. Submucosa
  3. Muscularis externa
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12
Q
A

loose areolar connective tissue- jejunum

Mucosa

  1. Luminal epithelium
  2. Lamina propria
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13
Q

jejunum

A

Mucosa

  1. Luminal epithelium
  2. Submucosa Composed of dense irregular connective tissue
  3. Muscularis externa
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14
Q

jejunum

A

Mucosa

  1. Luminal epithelium
  2. Lamina propria comprised of loose connective tissue
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15
Q

jejunum

A

Mucosa

  1. Luminal epithelium
  2. Lamina propria comprised of loose connective tissue
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16
Q
A

Loose areolar connective tissue: mesentery

  1. Elastic fibers
  2. Mast cell
  3. Collagen fibers
  4. Fibroblast nuclei
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17
Q
A

Feline lip

  1. Epidermis
  2. Dermis containing loose areolar connective tissue
  3. Mast cells (stained blue)
18
Q
A
  1. Mucosa
  2. Submucosa formed of dense irregular connective tissue
  3. Muscularis externa
19
Q
A

Planum Nasolabiale

  1. Dense irregular connective tissue of the dermis
  2. Papillary layer of dermis formed by loose connective tissue
20
Q
A

Boar Epididymis

1. Dense irregular connective tissue capsule

21
Q

lymph node

A
  1. Dense irregular connective tissue capsule
22
Q
A

Tendon

  1. Collagen fibers
    Dense REGULAR connective tissue
23
Q
A

Dense REGULAR connective tissue
Tendon

  1. Fibroblast nucleus
24
Q
A
  1. Arterial lumen
  2. Elastic fibers (stained dark blue/black)
  3. Arterial wall
25
Q
A

Pulmonary alveolar septae

  1. Elastic fiber (stained black)
  2. Alveoli
26
Q
A

Kidney

  1. Reticular fibers (stained black)
27
Q
A

Mucous Tissue: Umbilical Cord

  1. Amorphous ground substance
  2. Collagenous fiber
  3. Fibroblast nucleus
28
Q
A
  1. Adipocyte

2. Adipocyte nucleus

29
Q
A

loose areolar connective tissue
mesentary

mast cell

30
Q
A

papillary layer (superficial layer of the dermis)
areolar CT
cat Lip
Mast cell

31
Q

what is on the inside

A

jejunum
lamina propria
areolar connective tissue

simple columnar cells on outside

32
Q
A

jejunum

lamina propria
muscularis mucosae
submucosa
muscularis externa

33
Q
A
34
Q
A

boar epididymis

dense irregular connective tissue

35
Q

on outside of lymph node

A

dense irregular connective tissue

36
Q
A

alveolus

37
Q
A

artery

elastic fibers

38
Q

dark lines?

A

reticular fibers

39
Q

what other organs are supported by a framework of reticular tissue?

A

lymph node,
liver
spleen
kidney

40
Q

purple things at edge?

A

adipose tissue

nucleus

21 fall: histology (36 decks)

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