Lecture 3 Quiz & Homework (Epithelial Tissue)
epithelial
A Pap test (Papanicolauo test) involves analyzing the __________ cells of the vagina for the detection of potential cancer.
transitional epithelium.
A stratified epithelium that thins and flattens as the tissue stretches is a
an endocrine gland.
A structure that secretes hormones into the blood is
rapid cell division, avascular, innervated (has its own nerve supply)
Epithelial tissue contains which of the following characteristics?
absorption, filtration, protection, secretion
Epithelial tissues play which important roles in the body?
secrete products into ducts that empty onto a surface
Exocrine glands differ from endocrine glands in that they
exocrine
Glands that release their product to a surface via a duct are referred to as ________ glands.
simple columnar epithelium
In the figure shown, which type of epithelium is indicated?
stratified squamous epithelium
In the figure shown, which type of epithelium is indicated?
Holocrine
In which type of secretion do cell products accumulate in the cytoplasm before the entire cell disintegrates?
True
Microvilli are abundant on cells that function for absorption in the small intestine and the kidney.
False
Multilayered epithelia are named for the cell shape found in the basal layer.
diffusion, osmosis, filtration, secretion, and absorption.
Simple epithelium functions in
a basal lamina plus a layer of reticular fibers equals a basement membrane.
The difference between a basal lamina and a basement membrane is that
both number of layers and shape
The following terms/names - simple squamous; stratified cuboidal and simple columnar - reflect the ________ of epithelial cells.
protection from abrasion.
The major function of stratified squamous epithelium is
simple squamous.
The thinnest type of epithelium is
stratified squamous
The type of epithelial tissue found lining the mouth and esophagus is:
Merocrine
The type of exocrine glands that releases their secretory product by exocytosis are called _________ glands.
epithelial
Using your knowledge of tissues of the body, which type of tissue do you deduce is located on the anterior surface of a person's eyeball?
avascular, replaced by mitosis, nerve supply
What characteristics are common to all epithelial tissue?
mucin
What do goblet cells secrete?
A
Which letter indicates a cellular junction that prevents molecules from passing between epithelial cells?
B
Which letter indicates junctions commonly associated with tissues under mechanical stress?
E
Which letter indicates microvilli?
D
Which letter indicates tunnel-like junctions in the lateral membranes of adjacent epithelial cells?
A
Which letter on the diagram indicates motile structural elements of the epithelial membrane?
skeletal
Which of the following is NOT one of the four basic types of tissues comprising the human body?
which type of cell junction
Which type of cell junction, shown in the figure, retards the passage of substances between cells?
stratified epithelium
Which type of epithelium consists of two or more layers of cells that protect underlying tissues in locations where considerable wear and tear occur?
gap junction
Which type of junction includes "micro tunnels" that are formed between two cells?
tight junctions, adherens junctions, desmosomes
Which type(s) of cell junctions are found in epithelial tissues?
simple cuboidal and simple columnar
Which type(s) of epithelial cells are specifically designed for secretion and absorption?
gap junctions
Adjacent cardiac muscle cells need to communicate with each other extremely quickly. Which type of cell junction would best help accomplish this?
stratified cuboidal
An epithelium in which the basal layer of cells is cuboidal and the apical layer has cells that are thin, flat and irregular in shape is a ________ epithelium.
thyroid gland which secretes thyroid hormones
Which of the following is an endocrine gland?
vascular
Which of the following is not a characteristic of epithelia?
It lines the heart chambers
Which of the following is not true of endothelium?
The primary function of cilia is to increase surface area.
Which of the following is true regarding apical surface features of epithelium?
It helps keep epithelial cells together. It helps "connect" epithelial cells with connective tissue. It provides a pathway for the migration of epithelial cells. It helps keep epithelial cells together and it helps "connect" epithelial cells with connective tissue.
Which of the following is/are true regarding the basement membrane?
simple squamous epithelium
Which of the following provides the least resistance to diffusion?
epithelial
Which of the following tissues make up glands?
gap junctions
Which of the following types of cell junctions allow communication between cells?
gap junction
Which type of cell junction is shown in the image below?
tight junctions
Which type of cell junction prevents the contents of organs from leaking into surrounding tissues?