Chapter 4 Tissues
Card Set Information
Chapter 4 Tissues
Notes from Barron
Groups of cells having similiar characteristics and performing realted functions.
Four basic types of tissue
Covers the body serfaces, lines its cavities, and forms the major portions of many human glands.
Epithelial tissue or Epithelium
Varied group of tissues composed of cells embedded within a network of fibers called a matrix.
A network of fibers
The material surrounding the cells within the matrix
Associated with movement in the body
Composed of cells adapted to receive and relay signals, respond to stimuli, and coordinate conscious and unconscious activities.
Exists at the body surface where it covers the skin and lines body organs such as the mouth, nose, and other cavities.
Found as the lining of the respiratory, reproductive, and urinary tracts.
The cells of this tissue divide by mitosis and one surface is usually free to face the air or fluid.
Tissue that has no blood supply but is nourished by nutrients obtained from blood vessels in the underlying connective tissue.
Tissue that is anchored to the connective tissue by an underlying basement membrane
Consists of glycoproteins secreted secreted by epithelial cells and a meshwork of collagen fibers from the connective tissue
Protein molecules linked to carbohydrate molecules
A junction that extends throughout the surface and around the perimeter of an epithelial cell. It seals it tightly to adjacent cells.
Junction formed by fusing the cell membranes of adjacent cells with interlocking membrane lipoproteins.
Junction with very little or no intercellular space.
A junction in which there is a submicroscopic space that seperates the opposing cell membranes, and intracellular keratin fibers anchor transmembrane glycoproteins that bind the cells together.
A junction that has tubular passageways and channels that exist between cells.
A juction that allows small ions and molecules to pass from cell to cell.
Type of juction found in smooth and cardiac mucsle. Epithelial tissue does not have this type of juction.
Type of tissue whose function includes protecting the underlying tissues from such things as dehydration, mechanical irritation, toxic substances, and trauma.
A function of this tissue is absorbing gases and nutrients, such as occurs in the lung and digestive system.
A function of this tissue is to transport nutrients, fluids, mucus, and other particulate matter.
A function of this tissue is to secrete cell products such as enzymes, sweat, and hormones.
Epithelium that produces enzymes, sweat, and hormones.
Epithelial tissue has flat cells
Epithelial tissue with cube-shaped cells
Epithelial tissue that has tall cylindrical cells
Epithelial tissue that occurs in sheets consisting of a single layer
Epithelial tissue that consists of two or more layers of cells
Epithelium tissue that appears to have more than one layer but is really a single sheet of cells having different heights (all cells touch the basement membrane
Epithelial tissue in which cells change shape in response to mechanical stretching.
A single layer of flat cells
Simple squamous epithelium
Epithelium found in the lining of the blood and lymph vessels
Epithelium that lines the body cavities
Consists of a single layer of cube-shaped cells having a central nucleus.
Simple cuboidal epithelium
Lines the gastointestinal tract and is found in the Fallopian tubes and uterus
Simple columnar epithelium
Consists of a single layer of tall cells having nuclei located close to the base of the cells
Simple columnar epithelium
Single-celled glands that occur in the columnar epithelium of the digestive tract (these secrete mucus)
Lines the trachea and upper respiratory tract it is also associated with the male reproductive ducts and male urethra
Pseudostratified columnar epithelium
Consists of many cells with columnar cells at the base, cuboidal cells at the intermediary level, and squamous cells at the free surface.
Stratified squamous epithelium
This epitelium line the ducts of the sweat glands and also occurs in the tublules of the testis and ovarian follicles
Stratified cuboidal epithelium
Composed of layers of tall cells found along the lining of the male urethra also located where simple columnar epithelium meets stratified squamous epithelium (such as the pharynx and larynx)
Stratified columnar epithelium
Six to seven layers of round cells may be seen when relaxed and when distended cells appear to be flat
This epithelial tissues functions are protection and absorption (it lines the blood vessels, lining of body cavities and part of kidney tubules)
This epithelial tissues functions are secretions and protection (it is the secretory portion and ducts of some glands and is also part of the kidney tubules)
This epithelial tissues functions are absoption, protection and secretion (lining of gastrointestinal tracts and ducts of some glands)
This epithelial tissues functions are protection and secretion (lining of trachea, upper respiratory tract, and parts of male reproductive system)
This epithelial tissues functions are protection, secretion, and some absorption (found in epidermis, lining of mouth, esophagus, and vagina)
This epithelial tissues function is protection (found in ducts of sweat glands)
This epithelial tissues function is protection (found in parts of the lining of male urethra)
This epithelial tissues function is protection (found in lining of ureter and urinary bladder)
Specialized secretory epithelium of the glands
Glands that secrete chemical regulators called hormones directly into the bloodstream
Glands that secrete enzymes and other products into ducts
Endocrine glands are often ducted or ductless?
Exocrine glands are often ducted or ductless?
Exocrine glands that are composed of one cell
Is a goblet cell unicellular or multicellular?
Glands that consist of numerous cells
Multicellular with ducts that do not branch
Multicellular gland in which secretions are given off into a straight line
Multicellular gland in which secretions are given off into a straight line and the tube coils
Multicellular gland in which branches are present in the tubule
multicellular gland in which the secretory unit is shaped like a sac with several sacs along a duct
A multicellular gland is considered _______ if its duct branches
A multicellular compound gland is classified _________ if branched tubules are present.
A multicellular compund gland is considered ______ if saclike.
Acinar (means saclike)
A multicellular compund gland is considered ______ if tubules and sacs are present
Exocrine gland that produces a slimy, viscous mucus composed of polysaccharides and proteins
What is produced by goblet cells as well as epithelial cells in the respiratory, urinary, and reproductive tracts?
A type of exocrine gland that produces serous fluid (a watery protein that usually contains enzymes)
A type of exocrine gland that produces both mucus and serous fluid (example salivary glands)
A class of exocrine gland that has cells that remain intact during their secretion (example sweat glands and salivary glands)
A subdivision of merocrine glands in which the cells release their products through the cell membranes by exocytosis (examples ceruminous glands, mamary glands, and certain types of sweat glands)
A class of exocrine gland that contains cells that break open to release the secretion, and thereby release the entire cell (example sebaceous glands in the skin)
Structure formed in the body when a sheet of epithelium and its underlying connective tissue join.
Membrane that line the surfaces of passageways leading to the outside of the body.
In the membrane layer which layer is close to the surface?
In the membrane layer which layer is a connective tissue that supports the epitelium and is rich in blood?
In the membrane layer which layer is the deepest?
Membrane that lines the body cavities and covers the surfaces of organs in the ventral cavities
Pleura, pericardium, and peritoneum are what type of membrane