Chapter 6 Flashcards
groups of cells that are similar in structure and function
tissues
there are ___ primary types of tissue
four
the 4 primary types of tissue are
epithelium, connective, nervous, and muscle
is a sheet of cells that covers a body surface or lines a body cavity
epithelial tissue
refers to membranes having a top and bottom
polarity
free surface of a membrane
apical surface
bottom surface of the membrane
basal surface
cells fit closely together to form membranes or sheets of cells and are bound by specialized junctions
specialized contacts
epithelial tissue is supported by
connective tissue
is an acellular material secreted partly by the epithelial cells and connective tissue cells that lie next to each other
basement membrane
epithelial tissues are supplied by ____ but not ____
nerves, blood
epithelial tissue depends on _____ of nutrients from the connective tissue
diffusion
if well nourished, epithelial tissue cells can easily divide to ______ the tissue
regenerate
consists of one layer of cells
simple
consists of two or more laters of cells
stratified
scalelike
squamous
cubelike
cuboidal
column-shaped
columnar
one layer of columnar cells in varying heights with nuclei at different levels
psuedostratified epithelium
stratified squamous epithelium formed of rounded cells with the ability to slide over one another
transitional epithelium
lose their duct as they develop; secrete hormones into the extracellular fluid
endocrine glands
retain their ducts; secretions empty through these ducts on the body surface or into body cavities
exocrine glands
is found in all parts of the body and is the most abundant and widely distributed type of tissue
connective tissue
primary function of connective tissue is to
protect, support, insulate, and bind together