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Science for Medicine > Tissues > Flashcards

Tissues Flashcards

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Biology 101 flashcards
1
Q

What does epithelial tissue do

A

Covers surfaces and separates compartments

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2
Q

What kind of junctions fill gaps in between cells

A

Cell-Cell junctions

Cell-ECM junctions

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3
Q

What kind of cell-cell junctions are there

A

Gap junctions
Desmosomes
Tight/occluding junctions

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4
Q

What function do Gap junctions have?

A

Allow cell-cell communication

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5
Q

What function do Desmosomes have?

A

provide firm anchorage

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6
Q

What function do Tight junctions have?

A

Seal intracellular spaces

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7
Q

What is the main kind of Cell-ECM junction?

A

Hemidesmosomes

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8
Q

What is the function of simple squamous epithelia?

A

They line alveoli and capillaries. Thin for easy diffusion

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9
Q

What is the function of simple cuboidal epithelia?

A

Line nephrons, secretion and absorption

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10
Q

What is the function of simple Columnar epithelia?

A

Line GI tract. Ciliated ones move mucus

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11
Q

What is the function of stratified Squamous epithelia?

A

Epidermis

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12
Q

What is the function of stratified cuboidal epithelia?

A

Ducts of sweat glands, protection

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13
Q

What is the function of stratified columnar epithelia?

A

Pharynx. Protection and secretion.

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14
Q

What is the arrangement/function of epithelia in the liver?

A

Hepatocytes. Arranged in rows between blood vessels. Secretion.

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15
Q

What is the arrangement/function of epithelia in the kidney?

A

Nephrons. Filter blood.

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16
Q

What are the consequences of abnormal function of covering and lining epithelia?

A

Over/under proliferation
Over/under secretion
Loss of ciliary beat

17
Q

What are glands?

A

Collections of multi or single cellular secretory epithelial cells

18
Q

Where do endocrine glands secrete into?

A

Blood

19
Q

What is an example of an endocrine gland

A

Adrenal Cortex

20
Q

Where do exocrine glands secrete into?

A

Surface, e.g sweat glands

21
Q

What are the 3 main kinds of gland

A

Tubular (tube shaped)
Acinar (berry shaped)
Tubuloacinar (both)

22
Q

What are the consequences of abnormal gland function?

A

Over production

Under production

23
Q

What is connective tissue?

A

Tissue that binds, supports, seperates and connects organs.

24
Q

What 4 main kinds of connective tissue are there?

A

Fibres, Ground substance, tissue fluid and loose connective tissue.

25
Q

What 2 kind of Connective tissue fibre is there

A

Collagen (inelastic)and Elastin (elastic)

26
Q

What is Ground Substance connective tissue made up of

A

Proteoglycans, Glycoproteins and Hyaluronic acid

27
Q

What is loose connective tissue made up of

A

Macrophages, White Blood Cells, Fibroblasts, Adipocytes and Mast cells

Science for Medicine (24 decks)

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