Epithelial glands (exam 1) Flashcards

(35 cards)

1
Q

What is meant by unicellular glands

A

Secretory cells may remain incorporated within the epithelial layer

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2
Q

What is meant by multicellular glands

A

May grow into the underlying connective tissue

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3
Q

if the epithelial down growth degenerates then what type of secretory gland is developed

A

Endocrine gland

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4
Q

Pituitary, thyroid, pineal, parathyroid, adrenal, gonads are examples of what kind of gland

A

Endocrine glands

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5
Q

What do endocrine glands secrete there product into

A

surrounding blood vessels

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6
Q

what do all exocrine glands have in common

A

They have a duct connecting it to the surface

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7
Q

What do all endocrine glands have in common

A

They do not have ducts

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8
Q

what is usually secreted in an endocrine duct

A

hormones

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9
Q

Paracrine

A

secretion affects neighboring cells example: growth factors

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10
Q

Autocrine

A

Secretion affects the cell that released the secretory product. example: IL-2 secreted by T-cells

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11
Q

examples of unicellular glands

A

goblet cells of the intestine and trachea (exocrine) mucous cells of the stomach (exocrine) enteroendocrine cells (endocrine)

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12
Q

A duct is a sign of what

A

it is exocrine and multicellular

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13
Q

what kind of glands do not exhibit ductal branching

A

simple multicellular glands

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14
Q

What kind of glands do have ductal branching

A

Compound multicellular glands

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15
Q

example of straight tubular gland

A

crypts of Lieberkuhn in large intestine

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16
Q

example of coiled tubular gland

A

sweat glands of skin

17
Q

Example of branched tubular gland

A

Fundic, pyloric, and cardiac glands of stomach

18
Q

Example of Alveolar (Acinar)

A

Meibomian glands of eyelid Sebaceous glands of skin

19
Q

Tubuloalveolar (-acinar)

A

Salivary glands, brunner’s glands of duodenum, and mucous glands of esophagus

20
Q

Glands of the oral cavity are an example of what kind of excretory

A

Branched tubular glands

21
Q

Exocrine glands of the pancreas are an example of what kind of excretory duct

A

branched acinar/alveolar gland

22
Q

The mammary gland is an example of what kind of secretory duct

A

branched tubuloacinar gland

23
Q

what is a serous demilune

A

commonly found in Acinus mostly mucous capped by a half-moon shaped group of serous cells

24
Q

where can mixed glands be found

A

Submandibular and sublingual

25
List the mechanisms of secretion from thinnest product to thickest
merocrine (eccrine), Apocrine, holocrine
26
Merocrine (eccrine)
secretory product is typically stored in membrane-bound vesicles, and cytoplasm/cell membrane is retrieved in an exocytosis/endocytosis cycle Cell is not damaged in this type of secretion
27
Apocrine
apical cytoplasm is released along with secretory product example: axillary sweat glands Part of the cell is damaged
28
Holocrine
Entire cell is released as part of secretory product example: sebaceous gland Entire cell is lost
29
Submandibular gland
Both serous and mucous cells serous cells form serous delimit capping mucous acini myoepithelial cells surround acini
30
Sublingual gland
Mucous acini (pale in appearance) (PAS+) flattened nuclei at basal poles of cells myoepithelial cells surround acini
31
Parotid gland
Serous Acini Apical regions contain zymogen granules RER predominates in basal regions of secretory cells - this makes sense because zymogen granules are protein containing granules
32
What is this slide
33
What is this slide
Parotid Gland
34
What is this slide
Sublingual Gland 100x
35
What is this slide
Sebaceous gland