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Cell Bio and Histology - Heckert > Lecture 6 - Epithelial Glands > Flashcards

Lecture 6 - Epithelial Glands Flashcards

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1
Q

What is the major diagnostic characteristic of compound glands?

A. Serous secretion

B. Alveolar secretory units

C. Branched excretory duct

D. More than one excretory duct

A

C. Branched excretory duct

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2
Q

Sebaceous glands are typically classified as which of the following types?

A. Serous

B. Holocrine

C. Mucous

D. Merocrine

A

B. Holocrine

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3
Q

Exocrine or Endocrine:

Epithelial outgrowths into underlying connective tissue
that retain their connection to the overlying epithelium in
the form of one or more ducts.

A

Exocrine

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4
Q

Exocrine or Endocrine:

• Epithelial outgrowths into underlying connective tissue
that lose their connection to the overlying epithelium.
• These glands lack ducts and must secrete their product
(hormone) directly into surrounding blood vessels.

A

Endocrine

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5
Q

Paracrine refers to..

A

Secretion affects neighboring cells

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6
Q

Autocrine refers to:

A

Secretion affects cell that released the secretory product

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7
Q

Example of a unicellular gland?

A

goblet cell

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8
Q

Which classification has ductal branching?

Simple or Compound?

A

Compound

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9
Q

Which form ducts, Exocrine or Endocrine glands?

A

Exocrine.

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10
Q

Endocrine products are typically called what?

A

Hormones

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11
Q

Which of the following splits into two or more branches and has no excretory ducts?

A. Simple Tubular gland

B. Simple Coiled Tubular gland

C. Simple tubular branched gland

D. Simple acinar or alveolar gland

A

C. Simple tubular branched gland

A. no excretory ducts or with short duct. Opens directly onto surface

B. Long excretory duct, coiled secretory portion (very long, like sweat glands)

C. short excretory duct is present in glands of the tongue and esophagus

SIMPLE STILL BECAUSE ONLY gland portion branches

COMPOUND - duct has to branch

D. Terminal secretory portion is divited by partitions into sacs

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12
Q

An example of an autocrine cell would be?

A

osteoblasts (bone forming cells)

1:09:15 lecture

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13
Q

which of the following IS NOT a shape of secretory portion:
A. Tubular
B. Acinar
C. Tubulo-alveolar (-acinar)

D. Compound-alveolar (-acinar)

A

D. Compound-alveolar (-acinar)

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14
Q

Which is smaller, lobule or lobe?

A

lobule

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15
Q

What are the branches off a capsule called?

A

Septa or trabeculae

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16
Q

What is the name of the duct that drains a lobule?

A

Intralobular duct

17
Q

What are the 3 types of secretion?

A

Serous (merocrine or eccrine)

Mucous

Mixed (serous-mucous)

18
Q

During this mechanism of secretion, No part of the secretory cell is lost (MOST COMMON)

A

Merocrine (eccrine)

19
Q

During this mechanism of secretion, Apical cytoplasm is lost

A

Apocrine (axillary sweat glands, mammary glands - lipid component of milk)

20
Q

During this mechanism of secretion, the entire cell is lost

A

Holocrine (ex. sebaceous glands [found with hair follacles])

21
Q

A columnar -> stratified columnar epithelium transition would most likely be associated with which of the following duct levels?

A. Intercalated

B. Striated

C. Intralobular

D. Intralobar

A

D. Intralobar

22
Q

Bicarbonate/chloride exchange is associated with which of the following levels of ducts?

A. Intercalated

B. Striated

C. Interlobar

D. Intralobar

A

A. Intercalated

23
Q

What type of cells:

  • Lie inside basement membrane
  • Cap secretory sinus
  • Are of epithelial origin with extensive actin bundles (contractility)
A

Myoepithelial cells

24
Q

T/F: The Acinus is the secretory part of the gland, enclosed within the basement membrane

A

True

25
Q

Order from biggest to smallest:

Lobes, Capsule, Lobules

A

Capsule, Lobes, Lobules

26
Q

Intralobular is associated with:

A. cuboidal to columnar epithelium with basal striations

B. Squamous to low cuboidal epithelium

C. Pseudostratified columnar epithelium

D. A and B

E. All of the Above

A

D. A and B

A - Intercalated duct (squamous to low cuboidal epithelium)

(bicarb secreted)where bicarb/cl exchange takes place, SIMPLEST

B - Striated duct (cuboidal → columnar epithelium w/ basal striatons

striated b/c basal domains have striations which accumulate mitochondria for active transport

27
Q

Order from biggest to smallest and state the type of tissue associated with each:

Lobar duct

Interlobular duct

Intralobar duct

A

Main duct THEN ->

Lobar duct- Stratified columnar epithelium

Intralobar - Columnar to stratified columnar epithelium

Interlobular- Pseudostratified columnar epithelium

28
Q

What type of tissue is associated with each?

Intercalated duct

Striated duct

Intralobular duct

Interlobular duct

Interlobar duct

Lobar duct

A

Intercalated duct - low cuboidal epithelium (THINK BICARB EXCHANGE)

Striated duct - cuboidal to columnar epithelium (THINK MITOCHONDRIA)

Intralobular duct - cuboidal to columnar epithelium

Interlobular duct - pseudostratified columnar epithelium

Intralobar duct - Columnar to stratified columnar epithelium

Lobar duct - stratified columnar epithelium

29
Q
A

A. Interlobular duct

B. Intralobular duct

30
Q
A

A. Lobar duct

31
Q
A

A. Lobar duct

32
Q
A

A. Interlobular duct

33
Q
A

A. Nucleus of myoepithelial cell

B. Mucous acinus

C. Lumen of acinus

Cell Bio and Histology - Heckert (7 decks)

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