C) stratum reticulumpage 153: there isn"t a stratum reticulum. The epidermis of special skin consists of 5 layers. Native deep to superficial, this layers room stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum. (Study tip: try the mnemonic BSGLC--Betty"s Skin Glows like Candles) Note: slim skin lacks the stratum lucidum; thus, it is composed of only the four significant layers.
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EpidermousThe superficial class of the skin is written of keratinized stratified squamous epithelium.
Which the the complying with statements shows the method in i beg your pardon the body"s herbal defenses safeguard the skin indigenous the impacts of UV damage? A) The skin is protected by the synthesis of 3 pigments that add to the skin"s color. B) Carotene, which accumulates in the stratum corneum and also hypodermal adipose tissue, is synthesized in huge amounts in the visibility of sunlight. C) The skin is defended by increasing the variety of Langerhans" cells, which help to activate the immune system. D) an extensive exposure come the sun induces melanin dispersion, which consequently acts together a herbal sunscreen.
D) an extensive exposure come the sun induces melanin dispersion, which consequently acts together a herbal sunscreen.
What is the first threat come life native a huge third-degree burn?What is the first threat come life from a substantial third-degree burn?A) catastrophic liquid lossB) infectionC) unbearable painD) ns of immune function
A) catastrophic fluid losspage 165: The instant threat come life resulting from severe burns isa catastrophic ns of body fluids include proteins and also electrolytes.This leader to dehydration and also electrolyte imbalance, and then renal fail (kidney shutdown) and circulatory shock(inadequate blood circulation early out to diminished blood volume). To conserve the patient, the lost fluids should be replaced automatically via the intravenous (IV) route.
In the skin epidermis, the four top layers space of what type?A) dendritic cellB) karatinocyteC) fibroblastD) erythrocyte
Despite its obvious durability, the dermis is topic to tearing. How could a human being know the the dermis has actually been stretched and/or torn?
The illustration of visible, silvery-white scars is one indication of stretching of the dermis.ex: large marks throughout pregnancy
diffusing v the tissue liquid from blood vessels in the dermispage 152: prefer all epithelia, the epidermis depends on capillaries in theunderlying connective tissue (the dermis in this case) for its nutrients.
The dermis is a strong, functional connective organization layer. I m sorry of the complying with cell types are most likely to be found in the dermis?
fibroblasts, macrophages, and mast cellspage 154: Its cell are common of thosefound in any type of connective tissue proper: fibroblasts, macrophages,and occasional mast cells and also white blood cells.
In addition to defense (physical and chemical barrier), the skin serves various other functions. Which of the adhering to is another crucial function the the skin?
It counter modified epidermal cholesterol to a vitamin D precursor vital to calcium metabolism.Page 163: as soon as sunlight bombards the skin, modification cholesterol moleculesare converted to a vitamin D precursor, i m sorry is transported via the blood to other body locations to it is in ultimatelyconverted to vitamin D, i beg your pardon plays assorted roles in calcium metabolism.
An epidermal dendritic cabinet is a devoted ________.A) melanocyteB) nerve cellC) phagocytic cellD) squamous epithelial cell
Which kind of skin cancer appears as a scaly reddened papule and tends to flourish rapidly and metastasize?A) Squamous cell carcinomaB) MelanomaC) AdenomaD) Basal cabinet carcinoma
A) Squamous cell carcinomaPage 164: Squamous cabinet carcinoma, the second most usual skin cancer,arises from the keratinocytes of the stratum spinosum. The lesion appears as a scaly reddened papule (small, rounded elevation) that arises most regularly on the head (scalp, ears, and lower lip), and also hands.
If a splinter penetrated the skin into the 2nd epidermal layer of the single of the foot, i beg your pardon cells would certainly be damaged?If a splinter penetrated the skin into the second epidermal class of the single of the foot, which cells would be damaged?A) lucidumB) spinosumC) basaleD) granulosum
A) lucidumPage 153: Stratum Lucidum (Clear Layer) through the irradiate microscope, the stratum lucidum (loo9sid-um; "light"), visible onlyin thick skin, is a slim translucent tape just above the stratum granulosum, BSGLC--Betty"s Skin Glows prefer Candles.
Which explain correctly defines why hair shows up the method it does?A) Kinky hair has flat, ribbonlike hair shafts.B) Perfectly ring hair shafts an outcome in wavy hair.C) Air bubbles in the hair shaft cause straight hair.D) Gray hair is the an outcome of hormonal activity altering the chemical composition the melanin.
A) Kinky hair has actually flat, ribbonlike hair shafts.Page 157: If the tower is flat and also ribbonlike in cross section, the hair is kinky; if the is oval, the hair is silky and also wavy; if that is perfect round, the hair is straight and also tends to it is in coarse.
Although the integument is a covering, it is by no method simple, and also some of its functions include ________.A) the dermis providing the significant mechanical barrier to chemicals, water, and also other external substancesB) resident macrophage-like cells whose duty is to ingest antigenic invaders and present them come the immune systemC) cooling the human body by increasing the action of sebaceous glands during high-temperature conditionsD) epidermal blood vessels serving as a blood reservoir
B) resident macrophage-like cell whose role is come ingest antigenic invaders and present them come the immune system
Sweat is secreted by ________.A) sudoriferous glandsB) mammary glandsC) ceruminous glandsD) sebaceous glands
A) sudoriferous glandsPage 160: Sudoriferous glands, which incorporate eccrine and apocrine sweat glands, produce sweat.
Which skin-color-associated, pigment-producing cabinet is located in the labeling layer D?A) Merkel cellB) fibroblastC) keratinocyteD) melanocyte
D) melanocyte Melanocytes within the stratum basale create the colors melanin, which is deposited in ~ the deeper great of the epidermis.
C) ceruminous glandsPage 161: Ceruminous glands room modified apocrine sweat glands discovered in the lining the the external ear canal. Your secretion mixes through sebum created by nearby sebaceous glands to form a sticky, bitter substance referred to as cerumen, or earwax, i beg your pardon is thought to deter insects and also block entrance of international material.
The dermis has actually two significant layers; i m sorry of the adhering to constitutes 80% that the dermis and is responsible for the tension lines in the skin?A) the subcutaneous layerB) the reticular layerC) the hypodermal layerD) the papillary layer
Page 151: The dermis has two layers, the papillary and also reticular, which abut one an additional along an indistinct boundary
Keratinocytes are an essential epidermal cell because they ________.A) are able to transform from living cells to plasma membranes and still functionB) produce a fibrous protein that provides the skin lot of its protective propertiesC) space able to reproduce sporadically as neededD) room a powerful defense versus damaging UV rays
B) create a fibrous protein that offers the skin much of its security propertiesPage 152: The chief function of keratinocytes is to develop keratin, the fibrous proteinthat helps provide the epidermis its safety properties
Which the the complying with terms defines the hypodermis layer?A) papillarB) epidermalC) reticularD) subcutaneous
D) subcutaneous web page 151: The hypodermis ("under the skin") great is also referred to together the subcutaneous region.
Male sample baldness has actually a hereditary switch that transforms on in response to ________.A) sizeB) male hormonesC) ageD) weight
B) male hormonesPage 159: True, or frank, baldness is a different story entirely. The mostcommon type, male pattern baldness, is a gene determined, sex-influenced condition. It is assumed to be caused by a delayed-action gene the "switches on" in adulthood and also changes the an answer of the hair follicles to DHT dihydrotestosterone), a metabolite that testosterone.
Sudoriferous glands differ in circulation over the surface ar of the body. I m sorry of the complying with is correct?A) Eccrine space the many numerous, being found primarily in the axillary regions.B) Apocrine glands are larger than eccrine, and empty secretions directly to the surface ar of the skin.C) Ceruminous glands secrete cerumen, which is believed to deter insects.D) Mammary glands space not considered a modified sweat gland.
C) Ceruminous glands secrete cerumen, i beg your pardon is believed to deter insects.Page 161: Ceruminous glands are modifiedapocrine glands uncovered in the lining of the outside ear canal. Your secretion mixes through sebum created by adjacent sebaceous glands to form a sticky, bitter substance called cerumen, or earwax, that is thought to deter insects and also block entrance of international material.
________ is one inherited condition that influence the heme pathway; it leaves the skin scarred and gums degenerated, and may have led to the folklore about vampires.A) PorphyriaB) Decubitus ulcerC) ImpetigoD) Rosacea
A) PorphyriaPage 171: one inherited condition in whichcertain enzymes essential to kind the heme of hemoglobin of blood space lacking.
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Which that the adhering to would most most likely be uncovered in the stratum spinosum?A) melanocyteB) Merkel cellC) dendritic cellD) cornified cell
C) dendritic cellPage 153: Dentritic (Langerhan"s) cells room phagocytic cells the migrate into the epidermis and also are many abundant in ~ the stratum spinosum (layer C in the figure)
Which class of the dermis is directly below the epidermis?A) hypodermisB) reticular layerC) papillary layerD) stratum basale
C) papillary layerPage 151: The papillary class of the dermis, i m sorry is the superficial great of the dermis, lies simply beneath the epidermis. It is a thin layer that areolar connective organization in which fine interlacing collagen and also elastic fibers kind a loose woven mat.
Hole"s Essentials of person Anatomy & Physiology12th EditionDavid N. Shier, Jackie L. Butler, Ricki Lewis