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Anatomy - Histology > Connective tissue > Flashcards

Connective tissue Flashcards

1
Q

What is the cell spacing like in connective tissue?

A

Separated by a non-living extracellular matrix

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2
Q

What does the matrix allow connective tissues to do?

A

Bear weight
Withstand tension
Tolerate abuses

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3
Q

What are the functions of connective tissues?

A

Bind and support
Protect
Insulate
Transport substances
(BPIT)

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4
Q

What is ground substance?

A

Material between cells that contains fibers and holds fluid for nutrient diffusion

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5
Q

What are the 3 types of fibers?

A

Collagen
Elastic
Reticular

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6
Q

What do collagen fibers look like

A

Wide and wavey
Stain pink

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7
Q

What do elastic fibers look like?

A

Thin and flexible
Stain black

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8
Q

What do reticular fibers look like?

A

Spiderwebs
Stain black

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9
Q

What cells are found in the matrix of areolar CT?

A

Mast cells, macrophages and fibroblasts

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10
Q

What do mast cells do?

A

Produce heparin and histamine

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11
Q

What do macrophages do

A

eat bacteria and dead or dying cells

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12
Q

What do fibroblasts do?

A

build fibers

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13
Q

Where is areolar tissue found?

A

Between skin and muscles
Packaging organs
surrounding capillaries

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14
Q

What is the function of areolar CT?

A

Wrap and cushion organs
Phagocytize bacteria
Hold and convey tissue fluid

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15
Q

What is adipose tissue composed of?

A

Adipocytes: ring shaped cells filled with triglycerides
(chicken wire appearance)

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16
Q

Where is adipose tissue found?

A

Around organs and joints
surround the eye
Abdomen

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17
Q

What does adipose tissue do?

A

Absorbs shock
Stores energy
Protects
Insulates

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18
Q

What does reticular tissue look like?

A

A network of reticular fibers with macrophages interspersed

19
Q

Where is reticular tissue found?

A

Spleen
Lymph nodes
Liver

20
Q

What does reticular tissue do in the spleen?

A

Macrophages break down dying RBCs

21
Q

What does reticular tissue do in the lymph nodes?

A

Macrophages devour bacteria, viruses and cancer cells

22
Q

What does reticular tissue do in the liver?

A

Macrophages devour bacteria

23
Q

What does dense regular CT look like?

A

White/pink parallel collagen fibers with dark coloured fibroblasts

24
Q

Where is dense regular CT found?

A

Tendons and ligaments
scar tissue
aponeuroses

25
Q

What does dense regular CT do?

A

High tensile strength in one direction
Attach muscle to bone
Attach bone to bone

26
Q

What does hyaline cartilage look like?

A

Chondrocytes in lacunae with a glassy extracellular matrix and bordered by the perichondrium

27
Q

What does hyaline mean?

A

glassy

28
Q

What does perichondrium mean?

A

Around cartilage

29
Q

Where is hyaline cartilage found?

A

Embryonic skeleton
Ends of long bones
Costal cartilage
Nose
Larynx
Trachea

30
Q

What does hyaline cartilage do?

A

Smooth surface for joints
Resist compression
Flexible support

31
Q

What does elastic cartilage look like?

A

Elastic fibers in the matrix

32
Q

Where is elastic cartilage found

A

Ears
Epiglottis

33
Q

What does elastic cartilage do?

A

Flexible but maintains structure

34
Q

What does fibrocartilage look like?

A

Thick collagen fibers in the matrix with chondrocytes interspersed

35
Q

Where is fibrocartilage found?

A

Intervertebral discs
Pubic symphysis
Knee menisci

36
Q

What does fibrocartilage do?

A

Absorb shock
Smooth tough support

37
Q

What does compact bone look like?

A

Hard calcified matrix with Haversian canals containing an artery vein and nerve, canaliculi branching from the Haversian canal and osteocytes in the lacunae of the matrix

38
Q

Where is the Haversian system located?

A

Compact bone

39
Q

Where are osteocytes and osteoblasts found?

A

Spongy bone

40
Q

What does compact bone do?

A

Provide stability
Allow for body movement
Allow for muscle attachment

41
Q

What is blood composed of

A

Erythotrocytes (RBC)
Leukocytes (WBC)
Thromocytes (Platelets)
Plasma (matrix)

42
Q

Where is blood found?

A

In blood vessels
Heart

43
Q

What does blood do?

A

Transport gases, nutrients and waste
Transport hormones and chemical messengers

Anatomy - Histology (6 decks)

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