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Body Locomotion And Control > What Is The Fucntion Of Connective Tissue > Flashcards

What Is The Fucntion Of Connective Tissue Flashcards

1
Q

What forms the ECM of ordinary connective tissue and cartilage?

A

Fibroblasts and chondroblasts

ECM = fibres + ground substance

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2
Q

What is the structure of the extracellular matrix?

A 
Ground substance
Reticular fibres
Collagen fibre 
Elastic fibre
Adipocytes
Mast cells 
Fibroblasts
WBCs
 BVs
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3
Q

What does the ECM consist of?

A

Fibres (fibrous proteins) + ground substances (gel)

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4
Q

What are reticular fibres and their function?

A

Made of collagen and glycoproteins

Provide support in blood vessel walls and form branching networks

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5
Q

What are collagen fibres and their function?

A

Strong, flexible bundles of protein collagen (most abundant protein in your body)

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6
Q

What is the ground substance and its function?

A

Material between cells and fibres
Made of water and organic molecules (hyaluronic acid, chondriotin sulphate and glucosamine)
Supports cells and fibres
Provides a medium for exchanges substances

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7
Q

What are elastic fibres and their function?

A

Stretchable but strong fibres, made of proteins, elastin and fibrillin

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8
Q

What are fibrocytes?

A

Long and thin cells and produce the majority of the ECM

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9
Q

What are the constituents of the ECM?

A

Collagen fibres

GAGs

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10
Q

What are some examples and function of ordinary connective tissue?

A

Areolar: skin
Supports epithelial lining of the GI, resp and urinary tracts
Loose packing between cells of other organs
Adipose: fats
Brown adipose (thermoreg)
Reticular: lymph nodes
Reticulin protein

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11
Q

What are some examples of dense connective tissues?

A

Irregular: skin
Collagen positively charged attracting acid stains
Regular: skeletal muscle
Elastic: aorta

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12
Q

What are some examples of liquid connective tissue?

A

Blood and lymph
Cells: blood cells
ECM: plasma or lymph

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13
Q

What is the function of the basement membrane?

A

For cell adhesion, diffusion barrier and reg of cell growth

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14
Q

Describe cell adhesion of the basement membrane?

A

Fibrils link cell with ECM

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15
Q

What are examples of specialised connective tissue?

A

Hyaline: cartilage (chondrocytes, chondroblasts immature cells which secrete matrix, lie on cartilage surface called perichondrium)
Fibrocartilage (tendon)
Elastic (ear)

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16
Q

What are the function of ordinary connective tissues?

A

Mechanical support: binding cells together and binding tissue layer so to form a structure
Metabolic: BVs (oxygen and waste)
Defence: WBCs patrol surrounding tissues

17
Q

What is the function of adipocytes?

A

White fat:
Storage and thermal insulation (shock absorber in spinal cord)
Brown fat:
Heat producer

Body Locomotion And Control (7 decks)

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