Isf A Lecture 24 Glands

Front 1

Parenchyma

Back 1

large masses of secretory epithelia - what most glands consist of

the componenets that do the job of making and releasing the products fo the gland - for the most part these are epithelia

Front 2

stroma

Back 2

a capsule and/or partitions (septae) of connective tissue that surround and support masses of secretory epithelia (parenchyma)

the components that hold teh parenchyma together and provide structural and functional support; for the most part these are connective tissues, muscle and nerve

Front 3

organ

Back 3

two or more of the basic tissues working together to perform a common function. Glands ingeneral tend to be organs

Front 4

Exocrine

Back 4

describes a gland or its cells who secretions are released into a duct system - product crosses apical surface of the secreting cells

Front 5

Endocrine

Back 5

these glands are ductless and the products are relased into interstitital fluid, and form tehre usually into bloodstream. Product crosses basal surface of the cell adn the basement membrane of the epithelium.

Front 6

Merocrine

Back 6

exocytosis where there is little is any loss of membrane or cytoplasm

Front 7

apocrine

Back 7

exocytosis where adjacent portions of the apical cytoplasm are relased during teh secretory process

Front 8

holocrine

Back 8

the entire cell - usually dead or dying is the secretory product.

Front 9

serous

Back 9

the product relased is carbohydrate-poor and, often, protein-rich; fluid is watery

Front 10

mucous

Back 10

secretory product is rich in carbohydrates; fluid is viscous

Front 11

Serosa

Back 11

serous membrane - an organ. Consists of mesothilium over a thin layer of connective tissue. line cavities not open to outside world. Epithelial cells release serous fluid. Also highly absorptive for transfer of solutes

Front 12

Mucosa

Back 12

line the cavities of most organs fo the body - one in continuity with outside world (repiratory, digestive, reproductive). There are four layers: moist surface, thin basement, layer of loose connective tissue (lamina propria), thin layer of smooth muscle (muscularis mucosa)

Front 13

duct

Back 13

lines by stratified cuboidal epithelium

Front 14

Sebaceous gland

Back 14

-branched acinar glands
-outgrowths of hair follicle external root sheath
- produce sebum, oily product
-HOLOCRINE secretion

Front 15

submandibular salivary gland

Back 15

gland is defined by connective tissue capsule that are partitioned. Secretory cells cluster into rounded flask shaped mass (acinus/aveolus).

Parenchyma has numerous ducts that join to form a larger duct

stroma - loose connective tissue

Front 16

Mammary gland

Back 16

15-25 irregular lobes
- lobes are divided by dense CT and embedded in adipose tissue
-myoepithelial cells are around ducts and alveoli, tubulo-aveolar gland

Front 17

Nipples, areola

Back 17

SEBACEOUS glands and some modified sweat glands. Smooth muscle and sensory nerve endings