Lsb cell types and tissue

simple squamous epithelium location

air sacs of lungs and the lining of the heart, blood vessels, and lymphatic nodes

simple squamous epithelium function

allows materials to pass through by diffusion and filtration, and secretes lubricating substances

simple cuboidal epithelium location

in ducts and secretory portions of small glands and in kidney tubules

simple cuboidal epithelium functions

secretes and absorbs

simple columnar epithelium location

ciliated tissues are in bronchi, uterine tubes, and uterus, smooth are in digestive tract, bladder

simple columnar epithelium functions

absorbs, it also secretes mucous and enzymes

pseudostratified columnar epithelium location

ciliated tissues lines the trachea and much of the upper respiratory tract

pseudostratified columnar epithelium functions

secretes mucus, ciliated tissue moves mucus

stratified squamous epithelium location

lines the esophagus, mouth, and vagina

stratified squamous epithelium functions

protects against abrasion

stratified cuboidal epithelium location

sweat glands, salivary glands, and the mammary glands

stratified cuboidal epithelium function

protective tissue

stratified columnar epithelium location

the male urethra and the ducts of some glands

stratified columnar epithelium functions

secretes and protects

transitional epithelium location

lines the bladder, uretha, and the ureters

transitional epithelium function

allows the urinary organs to expand and stretch

skeletal muscle

functions of skeletal muscle

voluntary movement, produces heat, protects organs

skeletal muscle location

attached to bones and around entrance points to body

skeletal muscle histology

long cylindrical fiber, striated, many peripherally located nuclei

smooth muscle

smooth muscle histology

short, spindle-shaped, no evident striation, single nucleus in each fiber

smooth muscle function

involuntary movement, moves food, involuntary control of respiration, moves secretions, regulated flow of blood in arteries by contraction

smooth muscle location

walls of major organs and passageways

cardiac muscle

cardiac muscle histology

short, branched, striated, single central nucleus

cardiac muscle functions

contracts to pump blood

cardiac muscle location

heart

type of loose connective tissue

areolar, adipose, reticular

what is areolar tissue

contains all connective tissue cell types and fibres in a loosely arranged, web-like pattern

areolar tissue functions

fills spaces around muscles, surrounds blood and lymph vessels, supports abdominal organs, and beneath most epithelia, forming part of epithelial membranes

what is adipose tissue

it is a loose connective tissue that consists of fat cells with little extracellular matrix

adipose tissue

function of adipose tissue

it stores fat for energy and provides insulation

reticular tissue

what is reticular tissue

it is a mesh-like, supportive framework for soft organs such as lymphatic tissue, the spleen and the liver.

function of reticular tissue

it provides a supportive framework for soft organs

regular dense connective tissue

function of dense regular connective tissue

it provides resistance to stretching in one direction

why do collagen fibres appear wavy in photographs

they have natural criming, which straightens under tension

dense irregular connective tissue

function of irregular dense connective tissue

offering strength in multiple directions

types of specialised connective tissue

supportive and fluid

type of supportive connective tissue

cartilage and bone

types of cartilage

hyaline, fibrocartilage and elastic cartilage

hyaline cartilage

fibrocartilage

elastic cartilage

what is epiphyseal growth plate

a plate of hyaline cartilage at the ends of bone allows continues growth until adulthood

what does hyaline mean

glass-like

what is function of hyaline cartilage

supports and cushion

where is hyaline cartilage found

bones in joint cavities and c-shaped rings in trachea

function of elastic connective tissue

allows recoil of tissue following stretching, maintains flow of blood through arteries, and aids recoil of lungs following inspiration

where are elastic connective tissue found

walls of large arteries and within the walls of the bronchi

function of fibrocartilage

resist high compressive forces while retaining firm support

where are fibrocartilage

menisci in knee joint, pubic symphysis, intervertebral disc

what is the composition of bone

biphasic: one-third organic, two-thirds inorganic

what is the advantage of dual structure of bone

strength and flexibility

what is the function of bone

protects internal organs, supports body structure, regulates calcium homeostasis and blood cell production

what are the types of bone cells

osteoblasts, osteocytes, osteoclasts

what does osteoblasts do

deposit bone

what does osteocytes do

maintain the bone

what does osteoclasts do

break down the bone

what are the types of fluid connective tissue

blood and lymph

types of bone tissue

cortical and trabecular

what is trabecular bone

it is spongy, porous, lattice like structure

where is trabecular bone found

interior of bones and end of long bones

what is cortical bone

it is dense and compact

what is function of trabecular bone

supports multidirectional loading

what is function of cortical bone

provides structural strength and resistance to compressive forces

where is cortical bone found

outer shell of bones