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chapter 5
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68
Anatomy
Undergraduate 1
02/16/2014

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Term
Primary Tissue
Definition
Collective name of tissue types that includes epithelial, connective, nervous, and muscular tissues
Term
Matrix
Definition
histilogical term for extracellular material
Term
primary germ layers
Definition
name of the strata of the first organization of human cells into tissues during development
Term
ectoderm
Definition
outer layer of germ cells that forms the epidermis and nervous system
Term
endoderm
Definition
inner layer of germ cells that forms mucous membranes of digestive and respritory tracts
Term
mesoderm
Definition
middle layer of germ cells that gives rise to muscle, bone and blood
Term
mesenchyme
Definition
gelatinous tissue composed of collagen fibers and branching cells
Term
epithelial tissue
Definition
covers the surface of the body, lines the body cavities and organs, and constitutes the majority of glandular tissue
Term
basement membrane
Definition
layer between epithelium and underlying connective tissue
Term
goblet cell
Definition
mucous secreting cell
Term
simple squamous epithelium
Definition
single layer of flattened cells
Ex: Lung aveoli
Term
simple cuboidal epithelium
Definition
single layer of square or round cells such as kidney tubules
Term
simple columnar epithelium
Definition
single layer of tall, narrow cells; oval or sausage shaped nuclei such as in the lining of digestive tract
Term
pseudostratified columnar epithelium
Definition
apperas multilayerd; some cells dont reach the apical surface but all reach the basement membranes; located in the lining of the respiratory tract
Term
stratified squamous epithelium - Keratinized
Definition
Multiple cell layers with cells becoming increasingly flat towards the surface; surface covered with a layer of compact dead cells without nuclei
Term
stratified squamous epithelium - Nonkeratinized
Definition
Mutiple cell layers with cells becoming increasingly flat towards the surface; without a superficial layer of dead cells
Term
stratified cuboidal epithelium
Definition
two or more layers of cells with the surface cells square or round
Term
transitional epithelium
Definition
multiple cell layers with cells either round or flat depending on distension
Term
connective tissue
Definition
type of tissue that is most abundant and serves to support, bind, and protect organs
Term
fibroblast
Definition
cells that produce fibers and ground substance in connective tissue
Term
macrophage
Definition
large phagocytic cells that can engulf and digest microbes and debris
Term
leukocyte
Definition
scientific name for white blood cell
Term
plasma cell
Definition
cell that synthesizes antibodies
Term
mast cell
Definition
cell that secretes heparin and histamine
Term
adipocyte
Definition
scientific name for fat cell
Term
collagenous fiber
Definition
fibers made of collagen that are tough and flexible but resist stretching
Term
reticular fiber
Definition
thin collagen fibers coated with glycoprotein that form sponge like frameworks
Term
elastic fiber
Definition
fibers made of elastin which allows stretching and recoiling
Term
ground substance
Definition
gelatinous material occupying space around cells and fibers
Term
glycosamino glycan
Definition
long polysaccharide composed of amino sugars and uronic acid
Term
chondriotin sulfate
Definition
GAG responsible for stiffness of cartilage
Term
proteoglycan
Definition
a part of the ground substance that helps hold tissues together and slow pathogens by creating think colloids
Term
adhesive glycoproteins
Definition
protein-carbohydrate complexes that bind plasma membrane proteins to collagen and proteoglycans outside the cell
Term
loose connective tissue
Definition
type of fibrous connective tissue comprised of mostly ground substance
Term
dense connective tissue
Definition
type of fibrous connective tissue comprised mostly of cells
Term
areolar tissue
Definition
contains all six connective tissue cell types and has abundant blood vessles
Term
reticular tissue
Definition
mesh of fibers and fibroblasts that forms the structural framework of many organs
Term
adipose tissue
Definition
tissue comprised of mostly adipocytes
Term
dense REGULAR connective tissue
Definition
closely packed collagen fibers running parallel to each other
Term
dense IRREGULAR connective tissue
Definition
thick bundle or collagen fiber running in random directions
Term
chondroblast
Definition
cartilage cell that secretes matrix
Term
lacunae
Definition
small cavities that contain chondrocytes
Term
hyaline cartilage
Definition
type of cartilage with very fine collagen fibers that give a glassy appearance
Term
elastin cartilage
Definition
type of cartilage with large amounts of elastin
Term
fibrocartilage
Definition
type of cartilage with a coarse, visible bundles of collagen
Term
osseous tissue
Definition
scientific name for bone tissue
Term
spongy bone
Definition
type of bone that fills the head of long bones
Term
compact bone
Definition
type of bone that forms the external surfaces of all the bones
Term
haversian (central) canal
Definition
cylindrical arrangements of compact bone
Term
lamellae
Definition
layers surrounding haversian canal where bone matrix is deposited
Term
osteon
Definition
collective name of haversian canal and surrounding lamellae
Term
osteocytes
Definition
mature bone cells
Term
canaliculi
Definition
delicate canals radiating from each lacuna which allow osteons to communicate
Term
periosteum
Definition
tought fiberouas covering on all bone
Term
erythrocyte
Definition
scientific name for red blood cell
Term
leukocyte
Definition
scientific name for white blood cell
Term
neuron
Definition
scientific name for nerve cell
Term
neuroglia
Definition
cells that protects and assists neurons
Term
soma
Definition
cell body of a neuron
Term
dendrites
Definition
short branched process that extends from soma and carries impulses toward the soma
Term
axon (nerve fiber)
Definition
long process extending from soma that carries impulses away from the soma
Term
muscular tissue
Definition
tissue type that responds to stimulation by contracting
Term
skeletal muscle
Definition
muscle type that is usually attached to bone and consists of long, cylindrical fibers
Term
striations
Definition
caused by overlapping filaments, it gives muscle a banded appearance
Term
cardiac muscle
Definition
muscle type found in the heart
Term
intercalated discs
Definition
junctions connecting cardiac myocytes
Term
smooth muscle
Definition
muscle type that lacks striations and is involuntary
Term
tight junction
Definition
cellular junction that binds neighboring cells firmly and makes them water tight
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