Flashcards in Chapter 5 Deck (95):
Collection of cells and cell products that perform specialized functions
study of tissues
what are the 4 types of tissue?
connective, epithelial, muscular, neural
What are the functions of epithelial tissue?
Physical protection, secretion, absorb nutrients, control permeability, provide sensation, specialized secretions
lacks blood cells
extensions of the cell membrane used to increase surface area for absorption and secretion
where is microvilli found?
portions of digestive, reproductive, and urinary tracts
extensions of the cell membrane for the movement of ECF or secretions
where is cilia found?
portions of respiratory and reproductive tract
attaches cell to underlying epithelial cells or deeper tissues
attaches deepest layer of epithelia with basal lamina
attaches cell to neighbor
tight junction where membrane proteins of adjacent cells interlock
what is the function of occlusion junctions?
prevent water and solute passage
lock together terminal web of neighboring cells
layer of microfilaments inside plasma membrane of apical surface
cells are held together with connexons
channel proteins forming narrow passageways between adjacent cells
what is the function of gap junctions?
firm attachment where cytoskeleton of neighboring cells interlock
one cell layer covering the basal lamina
more than one cell layer covering the basal lamina
thin, flat squished
what is the function of simple squamous epithelium?
rapid diffusion, filtration, secrete fluid to reduce friction
where are simple squamous epithelium found?
alveoli, lining ventral body cavities, heart, lungs, serous membrane
what is the function of stratified squamous epithelium?
protect underlying tissue from abrasion
where are stratified squamous epithelium found?
epidermis, lining mouth, throat, anus, vagina
occurs in areas where mechanical stress and dehydration can occur, make things waterproof
what is an example of a keratinized area?
what is the function of simple cuboidal epithelium?
absorption and secretion
where is simple cuboidal epithelium found?
kidney tubules, thyroid gland, ovary, secretory region and ducts of glands
what is the function of stratified cuboidal epithelium?
where are stratified cuboidal epithelium found?
lining ducts of sweat glands
what is the function of transitional epithelium?
stretching and recoiling without out damaging
where is transitional epithelium found?
bladder, ureters, urethra
what is the function of simple columnar epithelium?
absorption, secretion of mucus, move material
where is simple columnar epithelium found?
stomach, intestine, uterine tubes
appears to be stratified, but all cells touch the basement membrane
pseudostratified columnar epithelium
what is the function of pseudo stratified columnar epithelium?
protection, uses cilia to move material
where are pseudo stratified columnar epithelium found?
nasal cavities, trachea
what are the 2 functions of stratified columnar epithelium?
protection and secretion
where are stratified columnar epithelium found?
secretes to blood
secretes to epithelial surfaces
Secretions release through exocytosis
apical portion of glandular cell fills with secretory vesicle and is shed
entire gland cell fills with secretory products then bursts to release contents
what are the functions for connective tissue?
structural framework, transport fluids, protection, support, energy source, defense
phagocytizes debris/ pathogens
build extracellular fibers
repairs damaged cells
produce and secretes antibodies
phagocytize foreign cells and attach certain pathogens
what makes up a matrix
ground substance and extracellular protein fibers
form strong branched network
very strong and thick fibers
slender stretchy fibers
what is the function of areola connective tissue?
protection bind epithelial to deeper tissues
where are areolar connective tissue found?
between muscles, beneath skin, beneath epithelial tissue
what is the function of adipose connective tissue?
stores energy, insulate, protect, cushion
where are adipose connective tissue found?
hypodermis, padding orbit, surrounds kidneys
what is the function of reticular connective tissue?
form tough flexible network providing support and resisting distortion
where are reticular connective tissues found?
liver, spleen lymph nodes.
bind body parts, resist stress in one direction
dense regular connective tissue
what does dense regular connective tissue contain?
where are dense regular connective tissues found?
muscle to bone
bone to bone and stabilizes organs
sustains tissue tension and withstands stresses in all directions
dense irregular connective tissue
where are dense irregular connective tissues found?
what is the function of elastic connective tissue?
stretching and recoiling
where are elastic connective tissues found?
between vertebrae and walls of large blood vessels
contain specific specialized cells and dissolved proteins in a watery matrix
fluid connective tissue
what are some examples of fluid connective tissue?
blood and lymph
what are the functions of supporting connective tissue?
protect soft tissue and support body weight
provides stiff, slightly flexible support and reduces friction between boney surfaces
where is hyaline cartilage found?
capping bones, nasal septum walls of respiratory passageway
contains elastic fibers which allow tolerate distortion without damage
where is elastic cartilage found?
contains many collagen fibers aiding in its ability to resist compression, prevent bone to bone contact and limiting movement
where is fibrocartilage found?
knee joint, between pubic bones, intervertebral discs
contracts to produce movement
what are the 3 types of muscle tissue
smooth, cardiac, skeletal
moves body by pulling on skeleton
pumps blood through vessels
moves materials through digestive tract, regulates diameter of muscles
where are neural tissues found?
brain, spinal cord, nerves
conducts electrical impulses to transmit information
cells that send signals