ap
The subcutaneous layer consists of
areolar and adipose tissues.
Which of the following conditions is the most common form of skin cancer?
basal cell carciroma
Which of these is NOT found in connective tissue?
basement membrane
In which of these tissues are lamellae and trabeculae found?
bone
Which of these tissues has cells located in lacunae?
bone and cartilage
Which of the following is a type of connective tissue?
bone tissue
All these characteristics correctly describe epithelial cell Except
capillaries penetrate the basement membrane to provide a good blood supply
Which tissue possesses all of the following characteristics? 1. cells cylindrical in shape 2. striated 3. usually one nucleus per cell 4.often branched and connected by intercalated disks
cardiac muscle
Which of the following is a connective tissue with a solid matrix?
cartilage
In nerve cells, the __________ contains the nucleus and is the site of general cell functions.
cell body
The most diverse tissues of the body are
connective tissue
arrector pili muscle
contract in response to frightening situations
Which of these events occur as a result of a decrease in body temperature?
contraction of arrector pili muscle
Which of the following consists of stratified squamous epithelial tissue, areolar tissue, and dense irregular connective tissue?
cutaneus membrane
Identify the type of connective tissue that strengthens and supports areas subjected to stresses from many directions.
dense irregular connective tissue
The dermis is composed largely of
dense irregular connective tissue
The highly vascular layer of the skin, which provides thermoregulation via changing blood flow, is the
dermis
In which of these locations is dense irregular collagenous connective tissue found?
dermis of the skin
Damaged skin cells are usually shed in sheets because the cells are held together by
desmosomes
When the body is overheated, the skin responds by
dilating blood vessels
thick skin
does not produce hair
Glands that produce hormones are
endocrine glands
Thin skin is defined by the thickness of the
epidermis
The tissue type in the body that lines internal passageways is ________ tissue.
epithelial
Which of the following is one of the four main types of tissue?
epithelial
Which of the following accounts for most of the volume of connective tissues?
extracellular matrix
Which of the following cartilage types has little ground substance and has a matrix dominated by collagen fibers?
fibrocartilage
During the regeneration process of the skin after an injury, what is the combination of blood clot, fibroblasts, and an extensive capillary network called?
granulation tissue
Hair is formed from epithelial cells in the
hair matrix
As a result of aging, the skin
has decreased blood flow
Which of these cell connections attach epithelial cells to the basement membrane?
hemidesmosomes
Which of the following is a type of secretion in which cells become packed with secretions and then burst apart and die?
holocrine
The most common type of cartilage is
hyaline
This layer contains loose connective tissue and has about half of the body's stored fat
hypodermis
Which of the following is the correct order of the layers of the cutaneous membrane (from superficial to deep)?
hypodermis, dermis, epidermis
Which of the following is the function of the combination of epidermal ridges and dermal papillae?
increase surface area for diffusion between the dermis and epidermis
"Pattern Baldness"
involves the hormone testosterone
Most of the cells of the epidermis are
keratinocytes
Simple squamous epithelium would be found
lining of blood vessels
A simple cuboidal epithelium would be found
lining of kidney tubules
The connective tissue that forms "packing" around organs and attaches the skin to underlying structures is
loose(areolar)
The function of the secretion of a sebaceous gland is
lubrication
Which cells of connective tissue proper release chemicals that mobilize the immune system?
macrophages
Nerve fibers in the dermis most likely function in
monitoring sensory receptors in the dermis.
Which of the following may occur with aging?
more fragile connective tissue
Striae occur as a result of
overstretching the dermis
Concerning skin color, which of these statements is correctly matched?
pale skin=shock
The epidermis is nourished by diffusion from capillaries in the
papillary layer of the dermis
the specific layer that shapes the ridges for fingerprints and footprints in the
papillary layer of the dermis
Apocrine sweat glands
produce secretions that are metabolized by bacteria to produce odor
Which of the following is the function of hair associated with a nerve fiber?
provides an early-warning system that may help prevent injury
The type of epithelium found lining the trachea is
pseudostratified columnar
Tall, thin epithelial cells with only some cells reaching the free surface, but with all cells attached to the basement membrane are called
pseudostratified columnar epithelium.
The process of tissue repair where damaged tissue is replaced or repaired to restore normal function is called
regeneration
Functions of the skin include
regulating body temperature
The ________ layer of the dermis contains bundles of collagen fibers and elastin, and is responsible for the mechanical strength and flexibility of the skin.
reticular
This connective tissue is found in organs with an open meshwork of thin collagen fibers-the liver, spleen, and lymph nodes. It facilitates diffusion and cell movements.
reticular connective tissue
Neuroglial cells are
supporting cells around the neurons
Mammary glands are modified
sweat glands
Membranes that consist primarily of areolar tissue and an incomplete layer of epithelial tissue are called ________ membranes.
synovial
Why is smooth muscle called by that name?
the actin and myosin filaments are not organized
One of the key features of epithelial tissue that differentiates it from the other three types of tissue is
the density of the tissue, with cells connected very closely.
Collections of specialized cells and cell products that perform a specific function are
tissues
Epithelial cells that can stretch from a cuboidal or columnar shape to a squamous shape are called
transitional epithelium
A major function of the skin is protection from
ultraviolet light
Melanin serves to protect cells in the deeper layers of the epidermis from
ultraviolet radiation
A difference between mucous membranes and serous membranes is
whether the cavity is open to the exterior or not.
When the arrector pili muscles contract,
"goose bumps" are formed
Choose the correct order of the cell layers, or strata, in a section of thick skin, from the basement membrane toward the free surface (deep to superficial). 1. stratum lucidum 2. stratum basale 3. stratum corneum 4. stratum granulosum 5. stratum spinosum
2, 5, 4, 1, 3
Exocrine secretions are discharged onto some external or internal body surface through a
Duct
Which of these statements is true regarding keratinization?
Epithelial cells eventually die and produce an outer layer of cells
Tendons and ligaments would have a high concentration of ________ cells.
Fibroblast
A burn that destroys only the superficial cells of the epidermis, such as a mild sunburn, is classified as
First degree
Which type of burn appears inflamed and feels tender but has no blisters?
First degree
Which feature is true for muscle tissue?
Muscle cells contain actin and myosin filaments
Which statement is true about nervous tissue?
Not all nervous tissue is located within the brain and spinal cord.
Which connective tissue type provides insulation?
adipose tissue
Gap junctions A) are small protein channels between cells. B) can function to coordinate movements of cilia. C) allow ions and small molecules to pass between cells. D) are found in intercalated disks in cardiac muscle cells. E) all of these
all of these
Which of the following characteristics apply to hyaline cartilage? 1. more collagen than proteoglycans present 2. found in the trachea and bronchi 3. has many elastic fibers 4. appears glassy and translucent in the microscope 5. found between vertebrae
2. found in the trachea and bronchi 4. appears glassy and translucent in the microscope
Which type of burn is described by all of the following characteristics? 1.epidermis and dermis destroyed 2. initially painless 3. much scar tissue formed
3rd degree
Which statement is correct?
A hair shaft is made of varying densities and consistencies of keratin.
Which of these processes occurs because of the release of chemical mediators of inflammation from injured tissues? A) dilation of blood vessels B) stimulation of pain receptors C) increased permeability of blood vessels D) edema E) all of these
All of these
Milk production from mammary glands is an example of what type of secretion?
Apocrine
The glands that begin discharging a sticky, cloudy, and potentially odorous secretion at puberty are called ________ glands.
Apocrine
In nerve cells, processes that conduct action potentials away from the cell body are
Axons
All new growth in the length of the hair shaft occurs at
B
Why does damaged cartilage heal slowly?
Cartilage is avascular, so nutrients and other molecules must diffuse to the site of injury
The lipid in oil glands is released through which type of secretion?
Holocrine
Glands that secrete substances with no actual loss of cellular material are
Merocrine glands
The cell that accounts for almost half of the volume of blood is the
Red blood cells
Which glands of the skin possess all of the following characteristics? 1. secrete oily, white substance rich in lipids 2. open into a hair follicle 3. during secretion, lysis and death of secretory cells occurs
Sebaceous glands
As an adolescent looking at pimples on your face, you think about what they are. You decide that they are related to ________ on your skin.
Sebum
Which type of epithelium secretes enzymes and buffers in the pancreas and salivary glands?
Simple cuboidal
Why are injections administered in the hypodermis when administering drugs using a hypodermic needle?
Since it is vascularized, the hypodermis can absorb a lot of fluid.
Flattened cells on the surface of an epithelial tissue are characteristic of ________ epithelia.
Squamos
The ______ consists of many layers of dead squamous cells tightly connected by desmosomes.
Stratum corneum
Connective tissue structures that attach muscles to bone are called
Tendons
Which statement is true for merocrine sweat glands?
They are more numerous than apocrine sweat glands.
Which of the following is a correct statement about stratified epithelia?
They cover surfaces that are subjected to mechanical or chemical stress.
Cyanosis is a condition caused by
a decrease in blood oxygen
During regeneration, fibroblasts produce a dense network of collagen fibers known as ________ tissue.
scar
The 2 types of exocrine glands in the skin are:
sebaceous and sweat glands
_________ membranes line the pericardial, peritoneal, and pleural cavities.
serous
Which type of epithelium lines the stomach and intestinal tract?
simple columnar
The type of epithelium that is found in the exchange surfaces of the lungs is
simple squamos
Which of these tissue types does NOT contain collagen fibers?
skeletal muscle
Keratinized stratified squamous epithelium is found in the
skin
Protective functions of the integumentary system include all of these EXCEPT
skin glands produce alkaline secretions that kill bacteria
The type(s) of muscle cell that has/have the ability to divide, and regenerate after injury, is/are ________ muscle(s).
smooth
Which tissue is found in the walls of blood vessels, and in digestive, respiratory, urinary, and reproductive organs?
smooth muscle
Which of these parts of the body have the most merocrine sweat glands?
sole of feet and palms
If you were looking at connective tissue in the microscope, you would notice
space between the cells
A small amount of ultraviolet radiation is beneficial because it
stimulates vitamin D3 synthesis in the epidermis.
Functions of connective tissue include
storage of energy reserves
Which of the following is a term used to describe the number of layers of epithelial cells?
stratified
Cell division occurs in which layer of the epidermis?
stratum basale
In which of these layers are melanocytes found?
stratum basale
the layer of the skin that is composed of dense connective tissue and has projections called papillae is the
stratum corneum