Glands

Question 1

Definition of gland

Answer 1

Organ
composed of cells specialized
for secretion

Question 2

Glandular products

Answer 2

proteins
lipids
protein/carb complexes

Question 3

Stroma

Answer 3

connective tissue

supports parenchyma

Question 4

Parenchyma

Answer 4

epithelial tissue component of gland

Question 5

Derivation of glands

Answer 5

invagination of epithelial surfaces

Question 6

exocrine glands

Answer 6

ducts

secrete onto epithelial surfaces

Question 7

endocrine glands

Answer 7

NO ducts

secrete into blood or lymphatic stream

Question 8

mixed glands

Answer 8

both exocrine and endocrine components

eg. pancreas; testes

Question 9

merocrine (eccrine) gland

Answer 9

cells remain intact

product released through membrane

Question 10

apocrine gland

Answer 10

portion of cell is lost during secretary process

Question 11

holocrine gland

Answer 11

entire cell leaves as product

Question 12

serous gland

Answer 12

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

Question 13

mucus gland

Answer 13

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

Question 14

mixed gland

Answer 14

mucous and serous secretory portions

demilunes

Question 15

demilunes

Answer 15

crescent-shaped groups of serous cells capping mucous secreting units

Question 16

goblet cell

Answer 16

unicellular gland

Question 17

guidelines for classifying multicellular glands

Answer 17

1. extent of branching

2. shape of secretory unit

Question 18

simple glands

Answer 18

no branching of ducts

Question 19

compound glands

Answer 19

duct branches

Question 20

tubular shape secretory unit

Answer 20

tubular

Question 21

alveolar, acinar, saccular shape

Answer 21

shape of sac or alveolus

Question 22

tubuloalveolar shape

Answer 22

portions of both tubular and alveolar secretory shapes

Question 23

myoepithelial cells: occurrence

Answer 23

sweat glands
mammary glands
salivary glands

Question 24

myoepithelial cells: structure

Answer 24

star-shaped

• central nucleus
• long cytoplasmic processes

Question 25

myoepithelial cells: location

Answer 25

between basal lamina and base of secretory cells

Question 26

myoepithelial cells: function

Answer 26

help secretory process by pressing on secretory cells