Epithelial Glands and Secretions Flashcards Preview

a&p chapter 4 > Epithelial Glands and Secretions > Flashcards

Flashcards in Epithelial Glands and Secretions Deck (36):
1

Release hormones

Endocrine gland

2

No ducts

Hormones released by endocrine glands go into the _______ _______ and directly into the __________ by __________ glands

interstitial fluid
Bloodstream
Endocrine

3

Produce secretions onto epithelial surfaces

Secretions go through ducts

Exocrine glands

4

Examples of secretions released by exocrine glands

Mucus, sweat, oil, earwax, saliva, digestive enzymes

5

Modes of secretion for glandular epithelia

Merocrine secretion
Apocrine secretion
Holocrine secretion

6

Produced in Golgi Apparatus

Merocrine secretion
Apocrine Secretion

7

Released by vesicles (exocytosis)

Merocrine secretion

8

Sweat glands are an example of this secretion

Merocrine secretion

9

Released by shedding cytoplasm

Apocrine secretion

10

Sebaceous glands are an example of this secretion

Holocrine secretion

11

Mammary glands are an example of this secretion

Apocrine secretion

12

Gland cells are replaced by stem cells in what secretion?

holocrine secretion

13

Watery secretions are released by _______ glands

serous

14

________ glands release mucins

Mucous glands

15

______ ________ glands secrete both serous and mucous

Mixed exocrine

16

Glandular epithelia's types of secretions:

Serous glands-watery secretions
Mucous glands-secrete mucins
Mixed exocrine glands-both serous and mucous

17

In this type of secretion, the product is released from secretory vesicles at the apical surface of the gland cell by exocytosis

Merocrine secretion

18

This type of secretion involves the loss of the apical cytoplasm, inclusions, secretory vesicles, and other cytoplasmic components. These are all shed in the process.

Apocrine secretion

19


The gland cell then grows and repairs itself before it releases additional secretions

Apocrine secretion

20

Occurs as superficial gland cells burts

Holocrine secretion

21

Continuedsecretion involving the replacement of these cells through the mitotic divisions of underlying stem cells

Holocrine secretion

22

These are the only unicellular exocrine glands

Mucous (aka goblet) cells

23

Scattered among epithelia and can be found in intestinal lining

Mucous (aka goblet) cells

24

Unicellular glands

Mucous (aka goblet) cells

25

Glandular epithelia's structure is comprised of _________ __________________ which are made of __________ _________

Unicellular glands
Mucous/goblet cells

26

Multicellular glands Structure of the duct can be:

• Simple (undivided)
• Compound (divided)

27

Multicellular glands Shape of secretory portion of the gland can be:

• Tubular (tube shaped)
• Alveolar or acinar (blind pockets)

28

Multicellular glands Relationship between ducts and glandular areas are:

• Branched (several secretory areas sharing one duct)

29

SIMPLE
TUBULAR example

•Intestinal glands

30

SIMPLE COILED
TUBULAR example

•Merocrine sweat
glands

31

SIMPLE BRANCHED
TUBULAR examples

•Gastric glands
•Mucous glands
of esophagus,
tongue, duodenum

32

SIMPLE ALVEOLAR
(ACINAR) examples

•Not found in adult; a
stage in development
of simple branched
glands

33

SIMPLE BRANCHED
ALVEOLAR examples

•Sebaceous (oil)
glands

34

COMPOUND
TUBULAR examples

•Mucous glands (in mouth)
•Bulbourethral glands (in
male reproductive system)
•Testes (seminiferous
tubules)

35

COMPOUND ALVEOLAR
(ACINAR) examples

•Mammary glands

36

COMPOUND
TUBULOALVEOLAR

•Salivary glands
•Glands of respiratory
passages
•Pancreas