ANATOMY TISSUES OF DOOOOMMMMM

What are the types of primary tissue?

epithelial, connective, muscle, nervous

what is epithelial tissue (epithelium)

sheet of cells that covers body surfaces or cavities

main functions of epithelial tissue?

protection, absorption, filtration, excretion, secretion, and sensory reception

what is the apical surface of epithelial tissue?

upper free side that is exposed to surface or cavity

Most apical surfaces are ____, but some have ___

smooth; microvilli

What is the basal surface of epithelial tissue?

lower attached side, faces inward toward body

Many Epithelial tissues form….

continuous sheets

All epithelial sheets are supported by_____

connective tissue

What is the basement membrane of an epithelium made up of?

basal and reticular lamina

innervated

has nerve supply

avascular causes..

no direct blood supply

epithelial tissue is avascular meaning….

it has no blood vessels

How is epithelial tissue nourished?

by diffusion from underlying CT

Epithelia tissue is avascular, but they are innervated, meaning they are directly supplied by

nerve fibers

simple epithelia

a single thick layer of epithelium

what are two or more thick layers of epithelium called and what are they mainly involved in?

stratified epithelia; protection

stratified squamous epithelium looks

flattened and scale-like

cuboidal epithelium

box-like, cube

columnar epithelium

tall, column-like

what is simple epithelia involved in?

absorption, secretion, or filtration processes

where is simple squamous epithelium found

kidney, lungs

endothelium and mesothelium are examples of…

simple squamous epithelium

which epithelium tissue is this

simple squamous

main function of simple squamous epithelium

diffusion and filtration

which epithelium tissue is this?

simple squamous

What should you look for in simple squamous epithelium tissue?

strings

function of simple cuboidal epithelium

secretion and absorption

where is simple cuboidal epithelium found in?

glands, kidney

what is this

simple cuboidal epithelium

What should you look for in simple cuboidal epithelium tissue?

squished donuts

where is simple columnar epithelium found in?

digestive tract, gallbladder, glands, bronchi

function of simple columnar epithelium

absorption and secretion of mucus, enzymes, etc.

What should you look for in simple columnar epithelium tissue?

free space from nucleus to edge, neat rows

what is this

simple columnar

function of pseudostratified columnar epithelium

secretion and movement of mucus

where can pseudostratified columnar epithelium be found?

respiratory tract, glands, testes

what is this

pseudostratified columnar epithelium

What should you look for in pseudostratified columnar epithelium tissue?

goblet cell, cilia

the yellow line is pointing to what strucutre?

goblet cell

stratified epithelial tissue

2 or more layers of cells

what is the major role of stratified epithelial tissue?

protection

what is keratinized stratified squamous epithelium?

type of tissue found in epidermis of the skin

what is nonkeratinized stratified squamous epithelium?

the type of tissue found in moist linings

what is this?

stratified squamous epithelium

What should you look for in stratified squamous epithelium tissue?

scale like, flat nuclei

function of stratified squamous epithelium

protection

location of stratified cuboidal epithelium 

sweat and mammary glands

what is this

stratified cuboidal epithelium

what are the two rare types of epithelium

stratified columnar and stratified cuboidal

How do you name stratified epithelium?

named according to the shape in apical layer

where do you find mesothelium?

 serous membranes in the ventral body cavity

where do you find endothelium?

lining of lymphatic vessels, blood vessels, and heart

function of cilia

move mucus

function of microvilli

increases surface area for absorption

location of transitional epithelium

lining of urinary organs

is transitional epithelium simple or stratified?

stratified

the basal layer cells of transitional epithelium are…..

cuboidal or columnar

What is special about transitional epithelium?

What does it allow?

it can change shape when stretched which allows for increased flow of urine and more storage in bladder

what is this?

transitional epithelium

What should you look for in transitional epithelium tissue?

rounded edges

gland

One or more cells that makes and secretes secretion

endocrine gland

internally secretes hormones

exocrine

externally secrete sweat into ducts

how are glands classified?

by their number of cells(multi/uni) and site of secretion

examples of exocrine glands

mucous, sweat, oil, salivary glands

mucous cells and goblet cells are examples of what kind of glands?

unicellular exocrine glands

Multicellular exocrine glands are composed of a ___ and a ______________

duct; secretory unit

what does the supportive connective tissue do for the gland

supplies blood and nerve fibers

what supplies blood and nerve fibers to gland

supportive CT

Multicellular exocrine glands are classified by what?

mode of secretion and structure (which includes duct and shape of secretory)

endocrine glands do not have

ducts

the 2 categories under duct structure are

simple and compound

A multicellular exocrine gland with an unbranched duct is called a…

simple gland

A multicellular exocrine gland with a branched duct is called a…

compound gland

what are the three categories under shape of the secretory unit in a multicellular gland?

tubular, alveolar, tubuloalveolar

in a tubular gland…

secretory cells form a duct

in alveolar glands…

secretory cells form sacs

tubuloalveolar glands…

have both tubular and alveolar secretory units

what is this

simple tubular

what is this

simple branched tubular

what is this

compound tubular

What type of epithelia are goblet cells found

pseudostratified columnar epithelium

The 3 modes of secretion in multicellular exocrine glands are

merocrine, holocrine, apocrine

merocrine

secretion product is released by exocytosis

holocrine

product is accumulated within, then entire secretory cell ruptures

examples of merocrine secretion

sweat, pancreas

apocrine

products accumulate within, but only the apex (top) of cell ruptures

example of apocrine secretion

mammary cells (maybe)

simple columnar epithelium is associated with….

microvilli

what is this?

compound tubular

what dis

simple alveolar

what dis

simple branched alveolar

what dis

compound alveolar

what dis

compound tubuloalveolar