Objectives 1-4 related

Question 1

Development of Exocrine glands

Answer 1

epithelial outgrowths into underlying connective tissues that retain their connection to the overlying epithelium in the form of one or more ducts

Question 2

Development of Endocrine glands

Answer 2

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

Question 3

Exocrine glands possess what in relation to endocrine glands

Answer 3

1) Exocrine glands possess ducts and secrete products onto the surface of the epithelium, they retain their connection to the epithelium in the form of those ducts
2) Endocrine glands do not have ducts, so they lose their connectivity to the overlying epithelium, and they secrete their products into the blood (vessels)

Question 4

Distinguish exocrine, endocrine, paracrine, and autocrine from one another

Answer 4

1) exocrine glands secrete products onto the epithelium
2) endocrine glands secrete into the blood
3) paracrine release effects the neighbor
a) cells are not necessarily of epithelial origin

4) autocrine “secretion affects cell that released the secretory product”
b) osteoblasts for instance

Question 5

All glandular tissues are of

Answer 5

epithelial origin

Question 6

Classification of glands

Answer 6

Unicellular (goblet cells for example)
multicellular
Presence/absence of ductal branching

Simple: absence of ductal branching
Compound: presence of ductal branching

Question 7

simple glands (examples)

Answer 7

Intestinal glands, sweat glands, stomach and uterus, sebaceous glands of the skin

Question 8

Secretory portion of glands: describe them

Answer 8

1) tubular, acinar, tubulo-alveolar, tubulo-acinar

Question 9

Simple gland’s secretion types

Answer 9

1) tubular, tubular branched, acinar, alveolar

Question 10

Compound gland secretory types

Answer 10

Branched tubular, branched alveolar, branched acinar, branched tubulo-acinar

Question 11

Duct types for exocrine glands

Answer 11

branched tubulure, branched alveolar or acinar, branched tubulo-acinar (has both tubules and acinars)

Question 12

Compound excretory duct’s organization

Answer 12

capsule —> septa or trabeculae (a divided gland separated into lobules and lobes —-> lobe or lobule (a small lobe)

Question 13

Intralobular duct

Answer 13

drains duct

Question 14

striated/intercalated duct

Answer 14

draining intralobular

Question 15

acinus

Answer 15

drains the striated/intercalated

3 types:

1) mucous
2) serous
3) serous-mucous (mixed)

Question 16

Types of Secretion

Answer 16

Serous (merocrine and eccrine)
Mucous
Mixed (serous-mucous)