Epithelium Tissue Description Function Location Image
examples
Simple squamous Single layer of Allows material to Air sacs of lungs,
flattened cells w/ pass by diffusion, blood vessels,
central disc shaped filtration lymphatic
nuclei vessels
Simple Single layer of Secretion and Kidney tubules,
cuboidal cubelike cells w/ absorption ovary surface
large nuclei
Simple columnar Single layer of tall Absorption, mucus Uterus, digestive
cells w/ oval nuclei secretion & tract
enzymes
Pseudostratified Single layer of cells of secretion Trachea & upper
columnar different heights respiratory
Stratified Thick membrane of protection Esophagus and
squamous many squamous mouth
cells, then more
cuboidal
Stratified Two layers of protection Sweat gland
cuboidal cubelike cells ducts
Stratified Several cuboidal and Protection and Urethra
columnar columnar cells secretion
Transition Represents stratified stretches Urethra and
epithelium squamous and bladder
cuboidal
, Connective Description Function Location Image
Tissue
Embryonic Gel like substance w/ Gives rise to other embryo
(mesenchyme) fibers connective tissues
Proper: loose – Gel matrix w/ Wraps/cushions Under epithelia
areolar fibroblasts, organs,
macrophages, and mast inflammation, hold
cells fluid
Proper: loose – Closely packed matrix Reserve fuel, Under skin, around
adipose insulation, protection kidneys
Proper: loose – Network of fibers Support other cell Lymphoid organs
reticular types
Proper: dense Parallel collagen fibers, Attaches muscle to Tendons, most
regular some elastic, mainly bone or other ligaments
fibroblasts muscles
Proper: Dense regular w/ a lot Allows tissue recoil Walls of large
elastic of elastic fibers after stretching arteries
Proper: dense Irregularly arranged Ability to withstand Fibrous capsules of
irregular collagen fibers and tension, structural joints/organs
fibroblasts strength
Cartilage: Firm matrix, Support and Covers end of long
hyaline chondroblasts reinforcement bones
Cartilage: Similar to hyaline but Maintains structure The ear
elastic more elastic fibers while allowing great
flexibility
Cartilage: Similar to but less thick Strength and ability Intervertebral discs
fibrocartilage than hyaline, thick to absorb shock
collagen
examples
Simple squamous Single layer of Allows material to Air sacs of lungs,
flattened cells w/ pass by diffusion, blood vessels,
central disc shaped filtration lymphatic
nuclei vessels
Simple Single layer of Secretion and Kidney tubules,
cuboidal cubelike cells w/ absorption ovary surface
large nuclei
Simple columnar Single layer of tall Absorption, mucus Uterus, digestive
cells w/ oval nuclei secretion & tract
enzymes
Pseudostratified Single layer of cells of secretion Trachea & upper
columnar different heights respiratory
Stratified Thick membrane of protection Esophagus and
squamous many squamous mouth
cells, then more
cuboidal
Stratified Two layers of protection Sweat gland
cuboidal cubelike cells ducts
Stratified Several cuboidal and Protection and Urethra
columnar columnar cells secretion
Transition Represents stratified stretches Urethra and
epithelium squamous and bladder
cuboidal
, Connective Description Function Location Image
Tissue
Embryonic Gel like substance w/ Gives rise to other embryo
(mesenchyme) fibers connective tissues
Proper: loose – Gel matrix w/ Wraps/cushions Under epithelia
areolar fibroblasts, organs,
macrophages, and mast inflammation, hold
cells fluid
Proper: loose – Closely packed matrix Reserve fuel, Under skin, around
adipose insulation, protection kidneys
Proper: loose – Network of fibers Support other cell Lymphoid organs
reticular types
Proper: dense Parallel collagen fibers, Attaches muscle to Tendons, most
regular some elastic, mainly bone or other ligaments
fibroblasts muscles
Proper: Dense regular w/ a lot Allows tissue recoil Walls of large
elastic of elastic fibers after stretching arteries
Proper: dense Irregularly arranged Ability to withstand Fibrous capsules of
irregular collagen fibers and tension, structural joints/organs
fibroblasts strength
Cartilage: Firm matrix, Support and Covers end of long
hyaline chondroblasts reinforcement bones
Cartilage: Similar to hyaline but Maintains structure The ear
elastic more elastic fibers while allowing great
flexibility
Cartilage: Similar to but less thick Strength and ability Intervertebral discs
fibrocartilage than hyaline, thick to absorb shock
collagen
