Anatomy Chapter 3
what cells connect body parts?
fibroblast and ethrocyte
what is a fibroblast?
large ER and golgi apparatus that make and secrete protein building blocks
what is ethroycte?
red blood cell that carries oxygen in bloodstream
what cells covers and lines body organs?
what is the shape and function of the epithelial cell?
hexagonal shape- cover and line. function is to protect, absorb, filter and secrete
what functional abilities do all cells have?
all cells can metabolize, digest food, dispose of wastes, reproduce, grow, move and respond to stimuli
what is the ability of cells to respond to stimuli?
the process by which particles move from an area of high concentration to low concentration is called...
the movement of water across a membrane from an area of low solute concentration to higher solute concentration is
An epithelium "built" to withstand friction is
what kind of connective tissue acts as a sponge, soaking up fluid when edema occurs?
what type of connective tissue prevents muscles from pulling away from bones during contraction
which tissue types would you find goblet cells?
a group of cells similar in structure or function
what are the 4 main types of tissue
epithelium, connective tissue, muscle tissue, nervous tissue
which of the tissue types is most widely distributed in the body?
what are the characteristics of epithelial tissue?
cells fit closely together forming continuous sheets; always have a free surface or edge called the apical surface, facing the outside of the body or lumen interior space of the body. avascular
what does avascular mean?
no blood supply of their own i.e. epithelial tissues
how are epithelial tissues classified?
shape and number of layers
what makes it "glandular" epithelium?
if they line a gland in the body
what is a squamous epithelial tissue?
scaly and flat
what is a cuboidal epithelial tissue?
what is a transitional epithelial tissue?
what is it called to be single and look stratified?
what does the ciliated epithelium do?
lines the respiratory tract and it contains mucus-producing cells. the mucus traps dust and bacteria and cilia moves to sweep mucus toward back of mouth to be swallowed or spat out
what do the endocrine glands do?
secrete hormones directly into the blood and circulate through the body to its targeted areas
what do exocrine glands do?
release their products onto the free surface of the skin or open cavities of the body their products are not released into the blood
what is the extracellular matrix?
non-living substance found surrounding the cells. together the matrix and cells form connective tissue.
what is the extracellular matrix produced by?
connective tissue and cells and then secreted to the outsides of the cells
what are the two elements of the matrix?
ground substance and fibers.
what is the "ground substance"
mostly water plus some proteins and complex molecules.
name a connective tissue with a soft fluid matrix and one with a stony hard matrix
blood and bone