Epithelial, Muscle, Nervous Flashcards
simple squamous epithelial tissue
Description: single layer of flattened cells with disc -shapedcentral nuclei and sparse cytoplasm
Function: allows materials to pass by diffusion and filtration in sites where protection is not important; secretes lubricating substances in serosae
location:kidney glomeruli; air sacs of ungs lining of heart blood vessels and lymphatic vessels
Simple Cuboidal Epithelial Tissue
description; single layer of cubelike cells with large spherical central nuclei
function; secretion and absorption
location:kidney tubules ducts and secretory portions of small glands ovary surface
Simple Columnar Epithelial Tissue
description single layer tall cells with round to oval nuclei
function absorpbtion secretion of mucus enzymes and other substances
location: lines digestive tract
Pseudostratified Columnar Epithelial Tissue
Stratified Squamous Epithelial Tissue
description thick epithelium compoased several cell laters basal cells are cubodial or columnar and metobolically active urface cells are flattened
function: protects underlying tissues in ares subjected to abrasion
location nonkeratinized type forms the moist linings of the esopagus mouth nd vagina
epithelium:transitional
description; resembles both strarified squamous and stratified cubodial basal cells cubodial or columnar
function: stretched readily oermits stored urine to distend urinary organ
location: lines the ureters, bladder, and part of the urethra
connective tissue - proper - loose-areolar
description: gel like matrix with all three fiber types, fibroblasts, macrophages, mast cells, and some white blood cells
funtion: wraps and cushion organs; its macrophages phagocytize bacteria; plays important role in inflammation; holds and convey tissue fluid
location widely districuted under epithelia of bdy
connective tissue - proper-loose- adipose
description matrix as in areolar but very sparse closely packed adipocytes or fat cells have nucleus pushed to the side by large fat droplet
function: provides reserve food fuel insulates against heat loss; supports and protects organs
location: under skin subcutaneous tissue around kidney and eyeballs within abdomen in breasts
connective tissue proper loose reticular
description: loose network of reticular fibers in a gel like ground substance reticular cells lie on the fibers
function: fibers form a soft internal skeleton stroma that supports other cell types including white blood cells, mast cells and macrophages
location lynphoid organs lymphnodes bone marroe and spleen
connective tissue proper dense irregular
description primarily irregularly arranged collagen fibers some elastic fibers fibroblasts is the major cell type
function: withstands tension exerted in many directions provides structural strength
location: fibrous capsules of organs and of joint dermis of the skin
connective tissue proper dense elastic
description dense regular connective tissue containing a high proportion of elastic fibers
function: allows tissue to recoil after stretching maintains pulsatile flow blood through arteries aids passibe recoil of lungs followinf inapiration
location: walls of large arteries within certain ligaments associated with the vetebral column within the walls of the bronchial tubes
connective tissue cartilage hyaline
description amorphous but firm matrix collagen fibers form an imperceptible network chondroblasts produce the maric when mature
function supports and reinforces serves as resilienr cushion resists compressive stress
location forms most of the embryonic skeleton covers the ends of long bones in joint cavities forms costal cartilages of the ribs
connective tissue cartilage elastic
description simialr to hyaline cartilage but more elastic fibers in matric
function maintains the shape of a structure while allowing great flexibility
location: supports the external ear (pinna) epiglottis
connective tissue cartilage fibrocartilage
description matrix similar to but less firm than that in hyaline cartilage thick collagen fibers predominate
function tensile strength allows it to absorb compressive shock
location intevetebral disc spubic symphysis discs of knee joint
connective tissue bone
description hard calcified matrix containingmany collagen fibers osteocytes lie in lacunae very well vascularized
function supports and protects by enclosing provides leveers for the muscles to act on stores calcium and other minerals and fat marrow inside bones is the site for blood cell formation
bones
connective tissue blood
description red and white blood cells in fluid matrix
function transports respiratory ases nutrients wastes and other substances
location contained within blood vessels
