LAB: Unit #6.1 & #7-Epithelial Tissue & Integumentary
Simple squamous epithelium consists of
a single later of flattened epithelial cells.
What is the function of simple columnar epithelium lining parts of the digestive tract, such as the small intestines?
absorption
Simple cuboidal epithelium is built for:
absorption or secretion.
Simple squamous epithelium is found lining the:
air sacs of the lungs.
The free surface of an epithelial tissue is the:
apical surface.
A spherical gland with branched ducts will be classified
as compound and acinar.
Salivary glands are spherical exocrine glands with branched ducts. You would classify them as
compound acinar glands
Support is a function of
connective tissues such as bone and cartilage.
Endocrine glands secrete their products, which are usually hormones,
directly into the blood. These hormones travel through the bloodstream and facilitate communication between cells in distant areas of the body.
Glands that secrete their products directly into the blood are called
endocrine glands
Glands, such as the thyroid, that secrete their products directly into the blood rather than through ducts are classified as:
endocrine.
The general type of tissue with an apical surface and a basement membrane is:
epithelial.
What cell is responsible for mucus secretion?
goblet cell
Which statement is true regarding pseudostratified ciliated columnar epithelium (PCCE)?
it is only one layer of cells
What protein makes stratified epithelial tissues resistant to friction?
keratin
Stratified squamous epithelium,
like that found in the epidermis of skin, is composed of multiple layers of flattened cells.
Where in the body would you expect to find simple columnar epithelium?
lining of the digestive tract
Where is simple columnar epithelium located?
lining of the small intestine
Epithelial cells
lining parts of the digestive tract, such as the small intestines, allow for absorption of substances, such as water and nutrients.
What type of secretion involves the release of substances, such as saliva and sweat, in secretory vesicles by exocytosis?
merocrine
During merocrine section, the product is
packaged into vesicles and released by exocytosis.
Functions of epithelial tissues
protection, immune defenses, secretion, transport into other tissues, and sensation.
The tissue lining the inside of the digestive tract from the stomach to the anus is
simple columnar epithelium.
You examine a tissue slide through the microscope and recognize one layer of cells that are mostly tall and elongated. You determine this tissue to be:
simple columnar epithelium.
Which tissue is best suited for transport of gases between the blood and the body's tissues?
simple squamous epithelium
The epidermis of the skin serves as a barrier to mechanical stresses and protects us from microorganisms. What tissue do you think forms the epidermis?
stratified squamous epithelium
Which of the following epithelia can be keratinized?
stratified squamous epithelium
You are observing a tissue under the microscope and you see multiple layers of flattened cells. You identify this tissue as
stratified squamous epithelium
Keratinized, dead cells are associated with:
stratified squamous epithelium.
Columnar epithelial cells are
tall and rectangular.
If an epithelial tissue is stratified, then
there are multiple layers of cells.
Which of the following is composed of multiple layers of cells?
transitional epithelium
Which organ system is lined by transitional epithelium to accommodate stretching?
urinary system
How are epithelial tissues classified?
Epithelium is classified by the number of cell layers and the shape of the cells.
Which statement best describes epithelial tissue?
Paracellular or transcellular transport moves substances across simple epithelia.