Tissues Flashcards
what are the 4 types of tissues
connective, epitheliual, nervous and musle
what is the role of epithela tissue
protection
absorbtion
diffusion
forms glads for secrtion
lie on a basement membrane
what is ct made up off
spaces filled with fibers, ground subsatn and fluid to make ecm
few cells far apart
what structre can extra cellualr matrix be
solid or liquid
what is musle tissue made up of
elongated thin cells, cytoplasm pack with contractile apparatus,
what is nervous tissue made up off
anngualr shaped neurtosn with prominet neucl adn communion process, satellite cells, , they recie , genrates and transmit electrical signal, integrates inforation
what are teh classes of simple epithelium tissues and their examples
squamous - blood vessles , cuboidial - kindeys and lungs or colomnatr- gut / ovary
what is types of unusal epitheilum and its examples
pseutodstarticed - tracheae
transitional - urinary tract
what is the ytypes of stratifed epthul and examples
squamous, - skin, cuboidal - salaviry and mammary glands, columnoar- glands/ dutuctws
what is the general role of simple epithilium
absorption, secretion, filtration
what is the general role of stratifed epithelium
protective and seectretion
what is the enalr role of transitionl epitthelim
permeabitly barrier and strechable
what is the genral role of pseudostratifed columnar epithlium
section and movement
what is the role of tight junctions
act as seal betwwen creating a barrier, this is water tight, they do not attach inside the cytoskleaton, found in uranry tract
what is the function of adherens juction
intial cell to cell contact
what is the fuction of desmodes
, hold cell thorg but things such as ions can flow between cells found in instesines
what is the function of gap jucntions
let water and ions flow through them, used for ion transport
hemidesmodaes
connect cell to basment membrane
what is the role of cilia
respirtaty system, used in the movement of particles
what is teh role of micorvil
for increase aera of absotion in the gut
what are the 3 types of connective tysis
loose - ct
dense ct
speciaed ct
what are examples of loose ct
areolar and adipose
what are examples of dense ct
dense irregular, dense regualr
what are exmapels of spicaled ct
cartilge, bone , blood
what is the cells in adiopse tisue
white and bron fat cells - adipocytes
which is mroe common in children white or born fat
brown
what is the role of adipose tissue
instuation adn protectoin around organs
what cell makes up regualr ct
collagen fibers
what is the fucntio fo irrecgar ct
to withrsnat tension form many direction
what is the function of dense regular ct
attaches musl to bone and bones to bones, can withant great tesnile stress when pulling force is applied in one directon
where is dense irregular ct found
dermis of the skin, submuocas of digestive tract, fibrous capsuesl of organs and joints
what is example of dense reguarl ct
tendons and ligametns
what fibers make up the ecm
collagen, elsetin and reticular
what gorund substnaces make up the ecm
carbohyrts linked to proitnes
what cells make up conenctive tissue
fibroblast , macorphaegs, adiocytes, mast cells, undifferentiaed cells
transient cells - wbc
what are special caritestic of smooth musle
straied, highly oreed, several perihal nucli
what are speical characterist of cardiac musle
straited, braced, less highly ordered arragemt of contractiel proteins
has intercolaed disc
one nucle per strand
what are special characteristic of smooth musles
non stiraed, randonw, one nucle per stand
what are the collecting part of the neurron
dendrites
what are teh part of a neuro that pas it to the next neruon
axon
what is the body of a neurom called
soma
what is the part of hte neuo which passes on the signal
terminals
exocrine glands
secreet in tubes , cremin in costa with epitlu
endocrea,
lose contact with endothil
secreete into blood vessles
cassifatoin of shape of endocrien glad
tubular, acinar, tubuloacinar
calssifiction of cell of exocine gland
goblets cell
funcion of goblet cells
watery enzyme sectionr - mucus
what are mucus secreting glands secrete
proteoglycan with water
where are mucous section gland found
trachea
what are sereous secion gland
secre water and ezyme with lots of prtien
what do sergous glands look like hsitolgy
dark stain, rouned central ncule
what do muclous gland lok like histolgy
periphal flattedn nucli, exocine part of pancrease
what is the mechaso of exocrine sectrion
merocrine
apocrine
holocine
what is holocrine secton and exlampels
sebaceous gland - mature cell dies and becomes secretory product
what is merocrien secretion adn examples
sweat glan, part of enzyem relased
wht is apocien secton and exampesl
pnced off portionof cel l, exmapels, mamnor gland, axillary sweat gland
what is the role of myoepithal celsl
contractile fucniton, help in section from the lumen
