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Histology MARINE > Histology Lecture 3 > Flashcards

Histology Lecture 3 Flashcards

1
Q

What is the smallest unit in life?

A

A cell

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2
Q

What type of tissue is this?

A

Epithelial

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3
Q

How many different cell types are found in the human body?

A

200 different cell types

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4
Q

What is the definition of an organ

A

Cells that are grouped together based on similar structure and function

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5
Q

What are the four basic tissue types?

A
  • Epithelial tissue
  • Connective tissue
  • Muscular tissue
  • Nervous tissue
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6
Q

What is the function of epithelial tissue?

A

Lines and covers surfaces

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7
Q

What is the function of connective tissue?

A

Protects, supports and binds together

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8
Q

What is the function of muscular tissue?

A

Produces movement

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9
Q

What is the function of nervous tissue

A

Control, receives stimuli and conducts impulses

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10
Q

Where can epithelial tissue be found in the body?

A

-Covers body surfaces
-Lines body cavities
-Lines blood and lymph vessels
Protects these places

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11
Q

What does secretory (glandular) epithelia do?

A
  • Produces fluid secretions

- Two types, exocrine and endocrine

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12
Q

What other functions does epithelial tissue have?

A
  • Absorption- brings small molecules into cells
  • Filtration- passage of small molecules through a sieve-like membrane
  • Sensory reception
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13
Q

What are tissue types are these?

A

Epithelial tissue

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14
Q

What type of epithelial tissue is this?

A

Simple squamous epithelium

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15
Q

What type of epithelial tissue is this

A

Simple cuboidal epithelium

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16
Q

What type of tissue is this?

A

Simple columnar epithelial

17
Q

How is epithelial tissue classified?

A

Classified by number of cell layers

  • Simple: allow substances to pass through
  • Stratified: protection
  • Cell shape
  • Squamous
  • Cuboidal
  • Columnar
18
Q

Where can simple squamous epithelium tissue be found in the body?

A

Air sacs of lungs
Lining of heart
Lymphatic vessels

19
Q

Where can simple cuboidal epithelium be found in the body?

A

Kidney tubules, ovary surface

20
Q

Where can simple columnar epithelium be found in the body?

A

Digestive tract, gallbladder

21
Q

Where can stratified squamous epithelium be found in the body?

A

Vagina, moist linings of the esophagus and mouth

Histology MARINE (4 decks)

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