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foundations of medicine > Glands > Flashcards

Flashcards in Glands Deck (26)
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1
Q

Definition of gland

A

Organ
composed of cells specialized
for secretion

2
Q

Glandular products

A

proteins
lipids
protein/carb complexes

3
Q

Stroma

A

connective tissue

supports parenchyma

4
Q

Parenchyma

A

epithelial tissue component of gland

5
Q

Derivation of glands

A

invagination of epithelial surfaces

6
Q

exocrine glands

A

ducts

secrete onto epithelial surfaces

7
Q

endocrine glands

A

NO ducts

secrete into blood or lymphatic stream

8
Q

mixed glands

A

both exocrine and endocrine components

eg. pancreas; testes

9
Q

merocrine (eccrine) gland

A

cells remain intact

product released through membrane

10
Q

apocrine gland

A

portion of cell is lost during secretary process

11
Q

holocrine gland

A

entire cell leaves as product

12
Q

serous gland

A
thin, watery secretion
rounded nuclei near base of cell
strongly basophilic
free ribosomes and RER
some granular material
13
Q

mucus gland

A

viscous, slippery secretion
flattened nuclei near base of secretory unit
not basophilic
bubbly or foamy apical cytoplams

14
Q

mixed gland

A

mucous and serous secretory portions

demilunes

15
Q

demilunes

A

crescent-shaped groups of serous cells capping mucous secreting units

16
Q

goblet cell

A

unicellular gland

17
Q

guidelines for classifying multicellular glands

A
  1. extent of branching

2. shape of secretory unit

18
Q

simple glands

A

no branching of ducts

19
Q

compound glands

A

duct branches

20
Q

tubular shape secretory unit

A

tubular

21
Q

alveolar, acinar, saccular shape

A

shape of sac or alveolus

22
Q

tubuloalveolar shape

A

portions of both tubular and alveolar secretory shapes

23
Q

myoepithelial cells: occurrence

A

sweat glands
mammary glands
salivary glands

24
Q

myoepithelial cells: structure

A

star-shaped

  • central nucleus
  • long cytoplasmic processes
25
Q

myoepithelial cells: location

A

between basal lamina and base of secretory cells

26
Q

myoepithelial cells: function

A

help secretory process by pressing on secretory cells