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Meiosis To Man > Connective Tissue > Flashcards

Connective Tissue Flashcards

1
Q

Collagen fibres

A

Are thick , tough, fibrous proteins that do not branch .

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2
Q

What are the most abundant fibers?

A

Collagen fibres

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3
Q

What is the role of fibroblast?

A

To synthesis all of the collagen, elastic and reticular fibers.

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4
Q

Describe type 1 collagen fibers

A

Type 1 fibers are found in the dermis of skin, tendons, ligament and bone. They are strong and offer great resistance to tensile stresses

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5
Q

Describe type 2 collagen fibres

A

Present in hyaline cartilage and elastic cartilage. The fibres provide great resistance.

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6
Q

Describe type 3 collagen fibres

A

They are him, branching reticular fibres that form the delicate supporting mesh work in such organs such as lymph nodes, spleen and bone marrow

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7
Q

Describe type 4 collagen fibres

A

Present in the basal lamina of the base membrane which the basal regions of the cells are attached.

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8
Q

Reticular fibres

A

Consist of main type 3 collagen fibres are thin and form a delicate netlike framework in the liver, lymph nodes, spleen , hemopiotic tissue.

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9
Q

Loose connective tissue

A

Loose irregular arrangement of connective tissue fibres and ground substances. Matrix contains numerous connective tissue cells and collagen fibres.

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10
Q

Dense connective tissue

A

Consist of densely packed collagen fibres and fibroblast. The collagen fibres are arranged randomly.

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11
Q

Where does collective tissue develop from?

A

Mesenchyme

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12
Q

What is mesenchyme?

A

Embryonic tissue

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13
Q

What does the extra cellular matrix contain?

A

Connective tissue fibres, ground substances within which are embedded the different protein fibres .

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14
Q

Function of connective tissue

A

Binds, anchors, and supports various cells, tissues and organs

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15
Q

Name the components that connective tissue consist of

A

Cells, extra cellular material, fibres

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16
Q

Fibroblast shape and importance

A

Are fusiform shaped, synthesizes all the components of the connective tissue including collagen, reticular and elastic fibres. Also synthesises carbohydrates such as glycoaminoglycans, proteoglycans and glycoproteins of the extra cellular matrix.

17
Q

Fibrocytes

A

Are smaller than fibroblast, are spindles shaped and are mature and less active cells.

18
Q

Adipose tissues

A

Singly or in groups
Cells store fat cells
In permanent slides cells look empty.

19
Q

Function of the adipose tissue

A

To provide packing material in organs

20
Q

Mast cells

A

Associated with blood vessels.

Synthesis and release histamine and heparin.

21
Q

Histamine

A

A potent mediator of inflammation . It dilates blood vessels , increases permeability to fluid thereby causing edema and induces signs and symptoms of immediate hypersensitive reactions.

22
Q

Structure of mast cells

A

Spherical cell, filled with fine regular basophillic granules.

23
Q

Plasma cells

A

Arise from the lymphocytes and give rise to antibodies

24
Q

Leukocyte a

A 
Defend the body against diseases. 
Neutrophils
Basophils
Monocytes
Lymphocytes
Macrophages
Eosinophils
25
Q

Macrophage

A

Phagocytic in nature, sometimes the cytoplasm show ingested material.

26
Q

Elastic fibres

A

Thin, small, branching, allow steching, contains protein.

27
Q

Where are elastric fibres found?

A

Bladder, lungs, and skin. Walls of the aorta and pulmonary trunk,

28
Q

Which cells synthesis elastic fibres in the large vessels?

A

Smooth muscle

29
Q

Reticular fibres

A

Are thin, form a delicate net, in liver, spleen and lymph node.

30
Q

Which type of reticular fibres are in reticular fibres?

A

Type III

31
Q

Function of reticular fibres

A

They support capillaries, nerves and muscle cells.

32
Q

What are the two types of connective tissues?

A

Loose connective tissue and dense connective tissue

33
Q

Loose connective tissue is dived into two group . What are they?

A

Irregular and regular

34
Q

Extracellular matrix

A

Is amorphous ( having no shape), gel like, contains glycoaminoglycans, proteoglycans and glycoproteins. Extra cellular matrix contains type 1 collagen.

35
Q

Loose connective is also known as?

A

Areolar

36
Q

Dense irregular tissue is found in?

A

Mammary gland

37
Q

Dense regular tissue in found in ?

A

Tendon

38
Q

Functions of connective tissue

A 
Provides supportive matrix
Repairs injuries
It forms planes which contains neuro vascular bundles
Form major part of superficial fascia
Modified as deep fascia.

Meiosis To Man (11 decks)

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