Exocrine Glands

Question 1

Outline of the Exocrine Gland

Answer 1

Possesses exocrine portion and secretory portion

Question 2

Exocrine portion of the gland is also called the

Answer 2

duct

Question 3

Glands are classified by

Answer 3

whether they are simple (unbranched) or compound branched

Question 4

Organization of the Exocrine Gland

Answer 4

Capsule

Septa or trabeculae, which organized interior into lobes or lobules

Question 5

Lobule

Answer 5

Contains the following

Acinus (the secretory portion+excretory portion)–> intercalated duct —>
striated duct—>
intralobular duct

the above constitute the interior of the lobe

Question 6

Acinus secretory glands have three types of secretions

Answer 6

mucous (glycoproteins), serous (water + proteins), and serous-mucous.

Question 7

Serous glands include

Answer 7

merocrine (eccrine)

Question 8

Mercocrine (eccrine)

Answer 8

no part of the secretory gland is lost during secretion
include most glands
(pancrease, salivary, and mammary glands)

Question 9

Apocrine

Answer 9

Some of the cell is lost during secretion, parts of the apical domain form the vesicle around the lipid/protein product

examples are axillary sweat glands
mammary glands

Question 10

Holocrine

Answer 10

entire cell is lost during secretion, sebaceous glands (yuck)

Question 11

Classification of exocrine glands include

Answer 11

1) what is released (glycoproteins or water + proteins) and 2) how they are released (merocrine, apocrine, and holocrine)

Question 12

Acinus refers to the

Answer 12

secretory part of the gland

Question 13

Acinus is contained within the

Answer 13

basement membrane

Question 14

Acinus cells are composed of

Answer 14

myoepithelial cells

Question 15

Acinus is the

Answer 15

epithelial origin with extensive actin bundles (contractility)

Question 16

Sequence of cell types within the gland beginning with the acinus

Answer 16

myoepithelial cells (acinus)—>intercalated duct (squamous to low cuboidal)—>striated duct (cuboidal—>columnar epithelium w/basal striations)—-> interlobular duct (pseudostratified columnar epithelium)—-> Intralobar duct (columnar to stratified columnar)—> lobar duct (stratified columnar epithelium)

Question 17

Duct pattern (example is salivary glands)

Answer 17

acinus–>intercalated—>strat—>intralobar—>interlobar—>lobar

Question 18

Intercalated ducts

Answer 18

intralobular duct

squamous to low cuboidal

exchange Cl- for HCO3

Question 19

Striated ducts

Answer 19

an intralobular duct

low cuboidal to columnar w/basal striations

basal domains are accumulations of mitochondria
critical in active transport
converts saliva to a hypotonic state
Secretes lots of potassium, absorbs lots of sodium

Question 20

Interlobular

Answer 20

ducts BETWEEN lobes in a capsule

pseudostratified columnar

Question 21

Intralobar

Answer 21

columnar –> stratified columnar epithelium

Question 22

lobar duct

Answer 22

stratified columnar epithelium

Question 23

Main duct

Answer 23

is the main duct

Question 24

Submandibular glands possess what features

Answer 24

1) Serousmucous secreting cells containing the demilune

Question 25

demilune

Answer 25

the “crescent moon” shapped cap on serous mucous secreting cells in the submandibular gland

Question 26

What type of cells will we find in the submandibular gland?

Answer 26

both mucous secreting and serous secreting acinus cells

Question 27

parotid gland: what kind of cells do we expect to find

Answer 27

entirely serous secreting cells

Question 28

the sublingual gland consists of what kinds of cells

Answer 28

largely mucous secreting acinus