Question Answer
Function of the body membrane Cover surfaces, lines body cavities and form protective sheets around body organs
2 types of body membrane epithelial and connective tissue
5 Characteristics of epithelial tissue fit closly together to form continuous sheets-always have one free surface or edge-lower surface rests on a basement membrane secreted by the cell-they have no blood supply-if well nourished will regenerate themselves easily
Classifications of epithelial cells simple, stratified, squamous, cuboidal,columnar
Simple epithelia are most concerned with absorption, secretion, and filtration. because it is usually very thin, protection is not one of its specialties.
Simple squamous epithelium a single layer of cells resting on a basement membrane common in glands and thier ducts, usually forms membrane where filtration of exchange of substances by rapid diffusion occurs, ex air sacs of the lungs ventral body cavity
Simple cuboidal epithelium one layer of cubbe shhaped cells resting on a basement membrane, common in glands and thier ducts, salivary glands,pancreas, walls of kidney tubules, surface of ovaries
simple columnar epithelium tall cells single layer that fit closely together, goblet cells which produce a lubricating mucus are often seen in this type of epithelium, line the entire digestive tract from the stomach to the anus.
mucus membrane membranes that line body cavities open to the body exterior are called______ such as those of hollow organs of the respiratory, digestive,urinary and reproduction tracts
Sratified epithelia consists of 2 or more cell layers, being more durable than the simple epithelia, the epithelia function primarily to protect
Stratified squamous epithelium the most common stratified epithelium in the body, consists of several layers of cells, found in sites that recieve a good deal of abuse such as the esophagus,mouth and outer portion of the skin
Stratified cuboidal epithelium typically just 2 cell layers with at least the surface cells cube shape
Transitional epithelium a highly modified, stratified squamous epithelium that forms the linning of only a few organs the urinary blader, ureters and urethra, properties elastic like
Glandular epithelium (Gland) consists of on or more cells that make and secrete a particular product
Endocrine glands lose there connection to the surface(duct) thus they are often called ductless glands, they secrete hormones directly into the blood vessels (thyroid,adrenals,and pituitary
Exocrine glands retain thier ducts,thier secretion empty thru the the duct to the epithelial surface,examples sweat and oil glands,liver, and pancreas
Cutaneous membrane skin,its superficial epidermis is composed of keratinizing stratified squamous epithelium, underlying dermis dense fibrous connective tissue,
Serous membrane composed of layer of simple squamous epithelium resting on a thin layer of areolar connective tissue in contrast mucus membrane which line open body cavities ____ ______line body cavitiesthat are closed to the exterior
parietal layer lines a specific portion of the wall of the ventral body cavity
visceral layer parietal layer folds into itself to form the_____ ______ closest to the organ
Peritoneum the serosa lining that covers the abdominal cavity
Pleura Isolates the heart and lungs
pericardium surrounds the heart

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