Epithelial Tissue and The Integumentary System
Which type of tissue lines most of the gastrointestinal tract and the gallbladder?
Simple columnar epithelium
Which of the following statements is FALSE? The point of attachment between the superficial epithelium and deeper connective tissue is called the basement membrane. All cells of a pseudostratified epithelium are attached to the basement membrane. Stratified transitional epithelium lines the urinary bladder, allowing this organ to stretch then return to its original shape. Simple squamous epithelium is most likely to line areas of the body that are subject to wear and tear such as the esophagus, vagina, and soles of the feet.
Simple squamous epithelium is most likely to line areas of the body that are subject to wear and tear such as the esophagus, vagina, and soles of the feet.
Nonkeratinized stratified squamous epithelium is found in all of the following areas of the body EXCEPT the _________.
Skin
Which of the following is NOT one of the four major types of body tissue?
Skin
While observing a tissue under the microscope, you notice a few layers of column-shaped cells. The nuclei located within the cells are fairly evenly dispersed in the middle of the cell or closer to the basal surface. How would you classify this tissue?
Stratified columnar epithelium
While observing a tissue under the microscope, you notice two layers of cells that are more square shaped than round. How would you classify this tissue?
Stratified cuboidal epithelium
What type of tissue is the epidermis composed of?
Stratified squamous epithelium
Which type of tissue provides a physical barrier that functions to protect against abrasion and attacks by pathogens and chemicals?
Stratified squamous epithelium
Which type of gland produces sweat?
Sudoriferous gland
Epithelial tissues are avascular. How do the cells of this tissue obtain nutrients and other vital substances?
The cells of the epithelium acquire nutrients and other vital substances through diffusion from the underlying connective tissue layer.
What is the advantage to having transitional epithelium lining the urinary bladder?
Transitional tissue allows the urinary bladder to stretch when filled with urine and then shrink back to its original shape when the bladder is emptied.
In the skin, the visible outermost layer of cells is dead. True False
True
The integumentary system contributes to homeostasis by maintaining body temperature, and allowing you to respond to external stimuli.
True
Which vitamin is produced in the skin following exposure to ultraviolet light?
Vitamin D
Which muscles attached to hair follicles cause "gooseflesh?"
arrector pili
Which of the following is NOT a major category of tissue in the body? bone epithelial muscle connective
bone
The two components of the integumentary system are the
cutaneous membrane and accessory structures.
The papillary layer of the dermis consists of areolar tissue containing numerous collagen and elastic fibers. Folds in the tissue are called .
dermal papillae
Which of the following are the two types of sudoriferous (sweat) glands?
eccrine and apocrine
Accessory structures of the skin include all of the following, except
epidermis.
The dermis .
has two layers
All of the following are true of the subcutaneous layer, except it
is attached to the dermis by a basement membrane.
Epithelial tissue __________.
is avascular
What protein does stratified epithelia cells produce?
keratin
The type of cells that form the strata in the epidermis are
keratinocytes.
What is the whitish portion of the proximal nail body where blood vessels do not show?
lunula
What is the pigment that protects deeper cells of the skin from harmful UV radiation?
melanin
Epithelia are classified and identified by ________ and ____________.
number of cell layers; general shape
The layer of the skin that contains the blood vessels and nerves that are closest to the surface of the skin is the ________ layer.
papillary
Keratinocytes are important cells in the epidermis because they .
produce a fibrous protein that gives the skin protective properties
Which of the following is NOT a function of simple epithelium?
protection
Which type of epithelium lines the nasal cavity, the trachea, bronchi, and parts of the male reproductive tract?
pseudostratified columnar epithelium
The layer of the skin that contains bundles of collagen and elastic fibers responsible for the strength of the skin is the ________ layer.
reticular
Acne is a disorder associated with ___________.
sebaceous glands
Which type of burn destroys the entire epidermis and portions of the dermis but does not injure hair follicles and gland in the dermis?
second-degree burn
What type of epithelium lines most of the digestive tract?
simple columnar
Which type of epithelium lines the blood vessels and the heart chambers, and is also called the endothelium?
simple squamous epithelium
Bella stepped on a thumbtack that penetrated to the second layer of epidermis, which cells were damaged?
spinosum lucidum
The functions of the epithelia include all of the following, EXCEPT _____________.
storing energy reserves
Which type of epithelium is found in parts of mammary glands?
stratified columnar epithelium
What type of epithelium appears to be two layers thick and looks like a doughnut?
stratified cuboidal epithelium
Which type of epithelium is uncommon and is found only in the ducts of certain sweat glands?
stratified cuboidal epithelium
This "category" of epithelia is found in areas exposed to abrasion and friction.
stratified epithelia
Which of the following layers of the epidermis is responsible for cell division and replacement?
stratum basale
The layer of dividing cells at the base of the epidermis is the
stratum germinativum.
In thick skin, what is the extra layer of cells in the epidermis?
stratum lucidum
Each of the following is a function of the integumentary system, except
synthesis of vitamin C.
Which of the following is a skin receptor for touch?
tactile
Which type of epithelium is found lining the urinary bladder?
transitional epithelium
Which of the following warning signs, called the "ABCD's" of skin cancer, is correctly described? (Mark all that apply.)
A = asymmetry B = border C = color D = diameter
Which of the following is the muscle that is attached to a hair follicle and causes "goosebumps" to form when it is contracted?
Arrector pili
The ________ glands in the axilla become active at the time of puberty.
apocrine sweat
What is one of the two main structural layers of the skin?
Epidermis
Which of the following organs are NOT found in the integumentary system?
Epiphyseal line
The type of tissue that is typically found as a lining to a cavity or a covering to an organ is _____.
Epithelial
Goblet cells are located in the pseudostratified ciliated columnar epithelium lining the respiratory tract and in the simple columnar epithelium found in the stomach and small intestine. What is the function of goblet cells?
Goblet cells function as a unicellular mucus-secreting gland
The field of study that focuses on tissues is _____.
Histology
Which layer of skin contains folds of connective tissue that result in the appearance of fingerprints?
Papillary layer
What lines the nasal cavity, trachea, and bronchi?
Pseudostratified ciliated columnar epithelium
Which type of gland can become clogged with oil and bacteria, forming a pimple or acne?
Sebaceous gland
What is the bodily secretion that functions to lubricate the hair and skin and has antibacterial properties?
Sebum
After being burned in the kitchen by hot oil, Sally, who was in a great deal of pain, went to the emergency room. Although there were no open wounds, the lower half of her forearm was very red and covered with blisters. How would you classify her burn?
Second-degree burn
If a needle pierced your forearm, what is the order of epidermal layers the needle would pass through? basale, spinosum, granulosum, corneum basale, spinosum, granulosum, lucidum, corneum corneum, granulosum, spinosum, basale
corneum, granulosum, spinosum, basale
