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Body Logistics > Connective And Adipose Tissues > Flashcards

Connective And Adipose Tissues Flashcards

1
Q

What are the functions of connective tissue?

A 
Connects cells to form tissues
Transports
Protection
Storage
Defence
Wound healing
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2
Q

What are the general connective tissues?

A

Cells, fibres and ground substance

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3
Q

What fibres are present in connective tissue?

A

Collagen, Reticular and Elastin

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4
Q

What is ground substance?

A

Viscous, clear substance with a slippery feel

Made of proteoglycans

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5
Q

What are Glycosaminoglycans? (GAGs)

A

Long chained polysaccharides that attracts water to from hydrated gel that permits rapid diffusion- in ground substance

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6
Q

What is a proteoglycan?

A

Core protein molecule and many GAGs attached

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7
Q

What is the extracellular matrix?

A

Complex extracellular structural network that consists of ground substance and fibres

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8
Q

What is loose connective tissue?

A

Many cells, sparse collagen fibres, abundant ground substance, viscous and gel like consistent, used for transport

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9
Q

What is dense connective tissue?

A

Few cells, many collagen fibres, little ground substance

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10
Q

Where is loose connective tissue?

A

located beneath epithelia, epithelium of glands, small blood vessels
- where pathogens can be challenged - swells

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11
Q

What is regular dense connective tissue?

A

Collagen fibres are arranged in parallel bundles and are densely packed between bundles and fibroblasts, withstand stress in a single direction

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12
Q

Where is dense regular connective tissue found?

A

Tendons, ligamens and aponeuroses

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13
Q

What is irregular dense connective tissue?

A

Collagen fibres are arranged in bundles orientated in various directions between bindles and fibroblasts, withstand stress in multiple directions

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14
Q

Where is irregular dense connective

A

Submucosa of intestine and deep layers of dermis

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15
Q

What do ligaments do?

A

Connect bone to bone

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16
Q

How are ligaments arranged?

A

collagen bundles are densely packed in parallel arrangement in fascicles, separated by loose connective tissue

17
Q

What is the dermis?

A

Dense irregular connective tissue

18
Q

What cells are present in connective tissue? (fixed)

A

Fibroblasts, Melanocytes, mast cells, macrophages, adipocytes, Mesenchymal stem cells

19
Q

What cells are wandering immune cells?

A

Leucocytes, plasma cells, monocytes, eosinophils and basophils

20
Q

What do Fibroblasts do?

A

Synthesise and secrete ground substance and fibres that lie in the ground substance

21
Q

Why are fibroblasts important?

A

wound healing and scar tissue

22
Q

What are macrophages?

A

Phagocytes which degrade foreign organisms and cell debris

23
Q

What are Mast cells?

A

Contain histamine to increase blood vessel wall permeability, Heparin which is an anticoagulant and substances that attract eosinophils and neutrophils

24
Q

What fibres are present in connective tissue?

A

Collagen, Reticular and Elastin

25
Q

What is Reticulin?

A

Type III collagen, fibrils form fibres around muscle and nerve cells and within lymphatic tissues and organs

26
Q

What is Collagen?

A

The most common protein in the body

27
Q

What produces collagen?

A

Fibroblasts

28
Q

Where are elastin fibres needed?

A

Dermis, artery wall, lungs and elastic cartilage sites

29
Q

What is more common, white or brown adipose tissues?

A

White

30
Q

Why are brown adipose tissue brown?

A

rich vascular supply and abundant mitochondria

31
Q

What is Ghrelin?

A

appetite stimulator

32
Q

What is leptin?

A

appetite suppressor

Body Logistics (20 decks)

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