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EVERYTHING ELMHURST > Anatomy: Epithelial Tissue > Flashcards

Anatomy: Epithelial Tissue Flashcards

1
Q

What is Histology?

A

Study of tissues

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2
Q

4 Main Tissues: Epithelial

A

Tightly packed sheets that covers surfaces

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3
Q

4 Main Tissues: Connective

A

Binds and connects all tissues together.

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4
Q

4 Main Tissues: Muscular

A

Generates Force

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5
Q

4 Main Tissues: Nervous

A

Generates, receives, and sends messages.

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6
Q

What is the Extracellular Matrix?

A

Gel-like substance that surrounds cells of tissue – provides strength and cohesiveness.

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7
Q

Cell Junctions: Tight Junctions

A

Seals Junctions, allows for close connection between cells.

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8
Q

Cell Junctions: Gap Junctions

A

Allows for material to pass from one cell to the next.

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9
Q

Cell Junctions: Desmosomes

A

Gives strength and anchor to tissues.

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10
Q

What are the different strengths of Epithelial Tissues?

A

Protection, immune defense, secretion, transportation into other tissues, sensation

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11
Q

Simple vs Stratified Epithelia

A

Simple has a single cell layer, while Stratified has more than one cell layer.

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11
Q

What are the components of an Epithelial Cell?

A

Tightly packed cells connected by tight junctions and desmosomes; Resistant to physical stress; They are avascular (lack blood cells, obtains oxygen & nutrients from deeper tissues that diffuse).

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12
Q

Epithelial Tissue: Squamous Cells

A

Flat, tile-like cells.

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13
Q

Epithelial Tissue: Cuboidal Cells

A

Short (As Tall as they are Wide)

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14
Q

Epithelial Tissue: Columnar Cells

A

Tall & Elongated (Much Taller compared to how wide they are)

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15
Q

What is Glandular Epithelia?

A

Involved in glands, releases secretory products such as sweat, saliva, hormones, etc.

16
Q

Paracellular vs Transcellular Transportation?

A

Paracellular is substances moving in BETWEEN cells, and Transcellular is substances moving through the individual cells.

17
Q

What is Transitional Epithelia?

A

ONLY in the Urinary system, allows for the change of shape and flexibility when the cell expands.

18
Q

STUDY FAVORITED PICS

A

STUDY FAVORITED PICS

EVERYTHING ELMHURST (21 decks)

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