Shared Flashcard Set

Details

Chapter 5
Tissues
33
Science
Not Applicable
09/13/2011

Additional Science Flashcards

 


 

Cards

Term
exocrine*
Definition
glands that secrete products into ducts
Term
endocrine*
Definition
glands that secrete products into body fluids and blood
Term
apocrine*
Definition
glands lose portions of their cell bodies during secretion ex: mammary glands
Term
holocrine*
Definition
glands release entire cells ex: sebaceous glands
Term
merocrine*
Definition
glands release fluid products by exocytosis (pancreas) and are grouped as serous which produce a watery fluid or mucus which produce a thicker, protective substance.
Term
connective tissues*
Definition
bind, support, protect, serve as frameworks, fill spaces, store fat, produce blood cells, protect against infection, and repair tissue damage.
Term
epithelial tissue*
Definition
is widespread throughout the body, covers organs, and lines body surfaces. funtions: protect, secrete & excrete, absorption, and sensory reception. usually no blood vessels
Term
fibroblast*
Definition
is the most common cell type
Term
macrophages*
Definition
function as scavenger cells and defend against infection.
Term
mast cells*
Definition
are large and are located near blood vessels where they release heparin (anticoagulant) and histamine (promotes inflammation).
Term
tissues
Definition
provide specific functions for the body. Four types: epithelial, connective, muscle, and nervous
Term
stratified cuboidal epithelium*
Definition
2-3 layers of cuboidal cells, providing greater protection than one layer.
Term
collagenous fibers*
Definition
white, made of the protein collagen, add strength for holding body parts together.
Term
elastic fibers*
Definition
yellow, made of the protein elastin, are stretchy and add flexibility to certain types of connective tissues.
Term
reticular fibers*
Definition
thin collagenous fibers that form supportive networks in a variety of tissues.
Term
loose connective (areolar) tissue*
Definition
bind body parts together such as skin and underlying organs with thin membranes. majority of the cells are fibroblasts separated by gel-like ground substance containing collagenous and elastic fibers
Term
adipose tissue*
Definition
loose connective tissue designed to store fat.
Term
dense connective tissue*
Definition
denslely packed collagenous fibers, very strong but lacks a good blood supply. found in tendons and ligaments.
Term
simple squamous epithelium*
Definition
thin, flattened cells. functions in the exchange of gases in the lungs. lines vessels and body cavities.
Term
simple cuboidal epithelium*
Definition
consists of a single layer of cube-shaped cells with centrally located nuclei. It functions in secretion and absorption in the kidneys, and in secretion in glands
Term
simple columnar epithelium*
Definition
made up of a single row of elongated cells whose nuclei are all located near the basement membrane. protects underlying tissues, secretes digestive fluids, and absorbs nutrients.
Term
pseudostratified columnar epithelium*
Definition
appear layered due to the varying positions of their nuclei within the row of cells, but are not truly layered.
Term
muscle tissue*
Definition
muscle cells, or fibers, that can contract. three major types: skeletal, smooth, cardiac
Term
skeletal muscle tissue
Definition
attached to bone and can be controlled by conscious effort. have many nuclei.
Term
smooth muscle tissue
Definition
lacks striations, one nucleus per cell, consists of spindle-shaped cells. involuntary muscle.
Term
cardiac muscle tissue
Definition
found only in the heart, branching fibers connected with intercalated disks. involuntary, appears striated.
Term
nervous tissue*
Definition
found in the brain, spinal cord, and nerves.
Term
neurons
Definition
nerve cells, conduct nervous impulses
Term
neuroglia
Definition
helper cells, support and nourish neurons.
Term
stratified squamous epithelium*
Definition
several layers of flattened cells designed to protect underlying layers.
Term
stratified columnar epithelium*
Definition
several layers of elongated cells.
Term
transitional epithelium*
Definition
designed to distend and return to its normal size.
Term
glandular epithelium*
Definition
cells designed to produce and secrete substances into ducts (exocrine) or bodye fluids (endocrine).
Supporting users have an ad free experience!