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Cellular Science > Epithelial Tissue & Connective Tissue > Flashcards

Epithelial Tissue & Connective Tissue Flashcards

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Biology 101 flashcards
1
Q

4 main types of tissue

A

Epithelial
Connective
Muscle
Nervous

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2
Q

Name some examples of epithelial tumours

A

Adenoma

Carcinoma

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3
Q

Characteristics of epithelial tissue

A
  • Layers of closely adhering cells
  • Little ECM
  • upper surface exposed to environment or new phase
  • quick division in cells - rapid healing
  • Avascular
  • thin layer or collagen
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4
Q

What are the functions of epithelial tissue

A 
Covering (lining) and protection
Absorption
Transport
Sensory: nose, ears, taste buds
Secretion - glands
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5
Q

How are epithelial tissues classified

A 
Number of cell layers
Shape of cells
Surface specialisations (ciliated)
Glass
Plane of sectioning
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6
Q

What are the 2 types of epithelia

A

Stratified and simple

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7
Q

What are the 3 types of simple epithelia

A

Simple squamous
Simple cuboidal
Simple columnar

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8
Q

Characteristics of simple squamous tissue

A

Thinnest
Passive transport of gas and fluid
- in alveoli, capillaries and glomeruli

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9
Q

Characteristics of simple cuboidal epithelial cells

A

Excretory, secretory or absorptive

- salivary glands, pancreas

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10
Q

Characteristics of Simple Columnar epithelial tissue

A 
Highly absorptive or secretory surfaces
- gall bladder, SI, Fallopian tubes
Have cilia and Goblet cells
- cilia increase SA for absorption and transport
- Goblet cells produce mucus
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11
Q

What is the difference in function of Simple epithelia as opposed to Stratified Epithelia

A

Simple is a singable layer of cells for absorption and stratified is two or more layers for protection

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12
Q

Characteristics of Stratified epithelial cells

A

Dead cells at apical surface
Moderate abrasion
-wet surfaces

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13
Q

What are the 3 types of Stratified Epithelia

A

Stratified Squamous
Stratified Squamous Keratinised
Transitional Squamous Epithelia

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14
Q

Characteristics of Stratified squamous keratinised

A

Dead cells at surface filled with keratin. No nucleus or organelles, makes our skin waterproof

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15
Q

Name some malignancies of connective tissue

A

Osteosarcoma
Lipoma
Osteoma
Osteosarcoma

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16
Q

What are the cellular constituents of connective tissue

A

Fibroblasts
Adipocytes
Mast cells
Macrophages

17
Q

What are the 3 classes of connective tissue

A

Proper
Support (scaffold)
Fluid

18
Q

Name the fluid types of connective tissue

A

Blood and Lymph

19
Q

Name the support (scaffold) connective tissue

A

Cartilage and bone

20
Q

Name the 2 types of Proper connective tissue

A

Loose and dense

21
Q

Name the 3 types of loose proper connective tissue

A

Areolar
Adipose
Reticular (reticulum allows for extensibility)

22
Q

Name the 3 types of dense proper connective tissue

A

Regular
Irregular
Elastic

23
Q

What is the function of connective tissue

A

Metabolic and physical support
Supporting framework
Mediate exchange of metabolites and nutrients
Storage

24
Q

What are the two types of (adipose) fat

A

White and brown (mainly in newborns)

25
Q

Characteristics of Areolar (loose connective) tissue

A

Vascularised
Function: binding web, physical and metabolic support
Umbilical coed
- Wharton’s jelly matrix - soft support

26
Q

Characteristics of Adipose (loose connective) tissue

A

White and brown

Function: energy, insulation, cushioning

27
Q

Characteristics of Reticular (loose connective) tissue

A

Function: soft skeleton
Reticular fibres: Col III
Liver, kidney, spleen

28
Q

Characteristics of irregular (dense connective) tissue

A

Skin, leather

29
Q

Characteristics of regular (dense connective tissue)

A

Ligament: bone - bone
Tendon: muscle - bone

30
Q

Where can you find elastic (dense connective) tissue

A

Ear, aorta

31
Q

True or false: all connective tissue is derived from mesenchymal stem cells

A

True

Cellular Science (19 decks)

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