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A&P: Lecture > Epithelial Tissue: Chapter 4, Section 1 > Flashcards

Epithelial Tissue: Chapter 4, Section 1 Flashcards

1
Q

What are the 4 types of tissues?

A

Connective
Epithelial
Muscle
Nervous

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2
Q

What are the two most common stains for histology?

A

Wright
H&E

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3
Q

What is the function of connective tissues?

A

Fills internal spaces providing structural support, stores energy

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4
Q

What is the function of epithelial tissue?

A

Convers exposed surfaces, lines passageways and chambers, forms secretory glands

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5
Q

What is the function of muscle tissue?

A

Contracts to produce movement

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6
Q

What is the function of nervous tissue?

A

conducts electrical impulses, carries information

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7
Q

What are the characteristics of epithelial tissue?

A

Polarity
Specialized contacts
Supported by connective tissue
Avascular (innervated)
Regenerative

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8
Q

What are tight junctions?

A

Helps with cells acting as barriers, diffusion/pumps/specialized proteins
Prevents water and solutes from passing between cells

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9
Q

Where is the adhesion belt located?

A

Runs along epithelial plasma membrane
Locks together terminal webs of neighboring cells

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10
Q

What are gap junctions connected by?

A

Chemical connections

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11
Q

What are desmosomes?

A

Tight anchors interlocked to adjacent cells

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12
Q

What are CAM’s?

A

Cell adhesion molecules
Anchor cells to extracellular matrix
Assists in movement

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13
Q

How are epithelial cells classified?

A

Cell number and shape

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14
Q

Describe types of cuboidal epithelium

A

Simple - limited protection, located where secretion and absorption takes place
Stratified - sweat glands

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15
Q

Describe transitional epithelium

A

Built to stretch and recoil
Appearance changes when stretching
Uterus, urinary bladder

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16
Q

Describe simple squamous epithelium

A

Delicate, low friction areas
Diffuses in short distances
Pericardial and peritoneal cavity

17
Q

Describe stratified squamous epithelium

A

High stress areas
Cells for layers
Exposed surfaces

18
Q

Describe simple columnar epithelium

A

Long and narrow, closer to basement (DNA)
Absorption and secretion locations
Microvilli/Cilia

19
Q

Describe stratified columnar epithelium

A

Line large ducts
Salivary glands

20
Q

Describe pseudostratified columnar epithelium

A

Nasal cavities, trachea, direct sperm
Motile cilia

21
Q

Describe goblet cells

A

Doesn’t form gland structure
Secretory cells are not present in galnds

A&P: Lecture (7 decks)

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