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Microbiology > Connective Tissue > Flashcards

Connective Tissue Flashcards

1
Q

List all the types of connective tissues.

A
  • Embryonic
    • mesencymal tissue
  • Adult
    • Proper connective tissue
      • loose
      • dense
      • adipose
      • reticular
  • Special
    • cartilege
    • bone
    • blood
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2
Q

Give some functions of connective tissue.

A

connect

suspend/give form/divide

insulation

storage

defend

provide nutrition

repair and regenration

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3
Q

Name the pluripotent cell giving rise to all connective tissues

A

Mesenchyme cells

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4
Q

***State the tissue subunits of the following forms of connective tissue: adipose, proper.

A

adipose= adipocytes

proper=

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5
Q

ground substance

A

ground substance= a component of the matrix

made of proteoglycans, Glucosaminoglycans, and glycoproteins

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6
Q

**List the cells associated with each of the CT’s we have studied in this section.

A

Embryonic CT- Mesenchymal cells

Adipose CT- Adipocytes

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7
Q

List resident in connective tissue.

A

(Only focus on resident cells)

Types of resident cells:

  • Fibroblasts, reticular cells, adipocytes, mesnechymal cells, microphages, mast cells.
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8
Q

List forms of matrix fiber seen in connective tissue.

A

Collagen-Thicker and paler in slide (white)

  • strong but do not stretch
  • most numerous fibers in CT and bone
  • arranged in bundles
  • reason for white color of tendons and sclera

Elastic-Thin and dark staining in slide

  • weak and elastic
  • Pink in HE (naturally yellow)
  • stretches 2 1/2 times its legnth
  • aorta, elastic arteries, lungs, vocal cords, dermis, pinna of ear, epiglottis

Reticular- form fine network of reticulum

  • can only be stained with silver stain (arfentaffin)
    • means they are “argyrophilic”
  • form reticular CT, which is the scaffolding for cells in lymph node, spleen and bone marrow
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9
Q

Differentiate in section collagen and elastic fibers.

A
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10
Q

Define parenchyma and stroma. List some organs where these terms apply.

A

parenchyma: the tissue of an organ that conducts the specific function of the organ. (functional tissue)

stroma: everything else in organ (blood vessels, nerves, ducts…) (structural tissue)

ex. neurons are parenchyma of brain

hepatocytes are parenchyma of liver

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11
Q

List some organs having reticular CT stroma.

A

EXPANDABLE ORGANS

spleen

lymph node

liver

lymphatics

CV

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12
Q

Give locations where elastic tissue can be found.

A

elastic tissue- Aorta and elastic arteries, lungs, vocal cords, dermis, pinna of ear, epiglottis

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13
Q

Describe the production and drainage of tissue fluid at the capillary level.

A

k

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14
Q

Identify

A

unilocular adpiose tissue= type of proper connective tissue

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15
Q

Identify

A

fibroblasts

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16
Q

Identify

A

mesenchymal cells

17
Q

Identify

A

multiocular adipocytes

18
Q

Identify

A

dense irregular connective tissue (dermis)

**Dense Connective Tissue

  • Irregular or regularly arranged
  • Densely packed fibers
  • Strong tissue
19
Q

Identify

A

dense regular connective tissue

20
Q

Identify

A

loose connective tissue

Loose Connective Tissue (Areolar CT)

  • Ubiquitous tissue
  • Loosely arranged fibers
  • Cellular constituents vary with location
21
Q

Identify

A

mast cells

22
Q

Fibroblasts

A

Type of resident cell

Form collagenous, elastic and reticular fibers of the matrix.

23
Q

Macrophages

A

Type of resident cell.

• Resident phagocytic cell of CT (fixed or motile)

24
Q

Mast Cell

A

Resident cell of connective tissue

• Release granules and powerful chemical mediators, such as histamine, cytokines, granulocyte macrophage colony-stimulating factor (GM-CSF), leukotrienes, heparin, and many proteases into the environment.

• These chemical mediators cause the symptoms of allergy.

• Involved in wound healing and defense also

25
Q

Types of Collagen

A

Type 1- bone and fibrocartilage

Type 2- cartilage

Type 3- reticular fibers

Type 4- basement membrane

26
Q

List the Glycosaminoglycans

A

Glycosaminoglycans

  • Hyaluronic acid
  • Chondroitin sulfate
  • Keratan sulfate
  • Dermatan sulfate
  • Heparan sulfate
27
Q

Connective Tissue Fluid

A

important component of connective tissue

  • Solution of nutrients, dissolved gases derived from plasma
  • Bathes matrix and cells with nutrients, aids in removing waste
  • Fluid dynamics maintain proper balance
  • Lymphatics important in fluid movement and prevention of edema
28
Q

Matrix

A

component of connective tissue

  1. fibers
  2. ground substance
  3. tissue fluid
29
Q

Lable these tissues

A

*** the deep purple is stratified epithelium

30
Q

Adpiose Tissue

A

Adipose tissue= composed of adipocytes (fat cells).

  • energy storage
  • endocrine function- has regulatory effect on body fat
  • unilocular fat cells
    • white fat
    • energy storage
    • insulation
    • endocrine (leptin)
  • multilocular fat cells
    • brown fat
    • heat generation

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