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105 Cards in this Set
- Front
- Back
The skin its appendages, blood vessels, nerves, and sensory organs make up what system?
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Integumentary
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Integument means?
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Covering
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The outer most layer portion of the skin is called strata or?
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epidermis
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True skin?
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dermis
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Composed of only epithelial cells and contains no blood vessels?
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Epidermis
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Has framework of connective tissue and contains many blood vessels nerve endings, and glands?
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Dermis (true skin)
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This layer of skin is nourished by capillaries not blood vessels?
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Epidermis
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New epidermis cells are produced in the deepest layer which is closest to the?
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Dermis
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The cells are constantly dividing into daughter cells which are then pushed upward toward the surface of the skin?
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Stratum Basale or stratum germinativum
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Serves to thicken and protect skin?
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Keratin
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The uppermost layer of the epidermus is known as?
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Stratum Corneum
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Contain flat cells filled with keratin and horny?
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Stratum Corneum
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Also known as the protective layer?
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Stratum Corneum
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The term meaning to cells of surface are constantly being lost and replaced?
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exfoliation
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Located between the stratum corneum and stratum basale?
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Stratum epithelium
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Produced in the deepest layer of the epidermis also referred to as pigment?
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Melanin
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Cells that produce melanin?
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melanocytes
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Irregular patches of melanin?
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Freckles
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Thick layers of skin are located where on the body?
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soles of feet, palms of hands
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Delicate layers of skin are located where on the body?
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eyelids
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Portions of the dermis that extend upward into the epidermis?
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dermal papillae
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Finger prints and footprints are an examples of ?
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dermal papillae
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The superficial layer of the skin?
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epidermis
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The deep layer of the skin?
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dermis
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Referred to as the hypodermis or superficial fascia?
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Subcutaneous Layer
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This layer connects the skin to the surface muscles?
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Subcutaneous Layer
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This layer consists of loose connective tissue (aerolar) and adipose (fatty)?
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Subcutaneous Layer
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The largest organ in the body weighing about 4kg is the?
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Skin
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Thick skin is about _____mm deep?
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1 mm
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Thin skin is about ______mm
deep? |
0.1 mm
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Layer of skinnot found in thin skin is?
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Stratum licidum
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Both the stratum ________and stratum _________ make skin resistant to abrasions?
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corneum and lucidum
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Characterized by epidermis ridges and numerous sweat glands, but lacks hair and sebaceous glands?
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Thick skin
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Coverd with hair that helps prevent heat loss?
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Thin skin
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Contains sebaceous glands?
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Thin skin
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Blood vessels that supply O & help to regulate body temp run through the?
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Subcutaneous (superficial fascia or hypodermis)
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Layer of skin that are rich in nerves and nerve endings?
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Subcutaneous (superficial fascia or hypodermis)
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What is the composition of the subcutaneous layer?
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Contains aerolar and adipose tissue
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Accesory of the skin that is sac-like in structure and secretes sebum?
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sebaceous glands
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Lubricates the skin and hair to prevent drying?
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sebaceous glands
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The ducts of the sebaceous glands open into the?
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hair follicle
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Babies are born with a covering that resembles cream cheese known as?
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vernix caseosa(cheesy varnish)
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Modified sebaceous glands that are associated with eyelashes and lubricates the eyes?
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meibomian glands
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Sebaceous glands that become infected result in?
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Pimples
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When a sebaceous gland becomes blocked and increases in size?
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sabaceous cyst
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Coiled tubelike structures located in the dermis and the subcutaneous tissue?
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Sudoriferous glands
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Eccrine type sweat glands?
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Sudoriferous glands
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Helps in the cooling of the body?
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Sudoriferous glands
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Each gland has an secretory portion and an excretory tube that extends to the surface and opens to a pore?
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Sudoriferous glands
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Present in the armpits and groin and become active at puberty ?
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apocrine sweat glands
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Modified sweat gland in ear canals?
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ceruminous glands
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Modified sweat glands that secrete cerumen?
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ceruminous glands
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Modified sweat glands located at the edges of the eylids?
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Ciliary glands
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Modified sweat glands located in the breast or mammary?
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mammary glands
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Each hair developes from living cells located in a bulb at the base of the ?
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hair follicle
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Melonocytes add pigment to the developing ______?
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hair
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The part of the hair that projects above the surface is known as the?
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shaft
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The portion of the hair that is below the skin is known as the ?
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root
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Attached to the follicle is a thin band of involuntary muscle known as?
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arrector pili (goosebumps)
(hair raiser) |
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Each hair developes within a sheath called?
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Hair follicle
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Made up of hard keratin produced cells that originate in the outer layer of the statum corneum?
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Nails
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Growth region of the nails?
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nail matrix
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Located under the proximal region of the nail?
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nail root
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The ______rests on the nail bed?
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nail plate
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An extension of the stratum corneum which seals the space between the nail plate and the skin above the root?
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cuticle
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The four major functions of the skin?
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1. Protection against infection
2. Protection against dehydration 3. Regulating body temp 4. collection of sensory info |
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Forms a tight intelocking patterm that is resistant to penetration?
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stratum corneum
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Keratin and sebaceous glands help to prevent?
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dehydration
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In cold conditions vessels in the skin _______to reduce the flow of blood to the surface and diminish heat loss?
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Narrow (constricts)
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In warm conditions vessels in the skin _______ to increase the flow of blood to the surface to dissipate heat?
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Widen (dilate)
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The evaporation of perspiration from the ________glands help to draw heat away from the skin?
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Sudoriferous
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Regarded as one of the chief sensory organs of the body?
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Skin
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Contains free nerve endings to detect sensory information?
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skin
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Touch receptors are known as?
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Meisser corpuscle
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Deep pressure receptors are known as?
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Pacinian corpuscle
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Water and electrolytes are excreted through?
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Sudoriferous glands
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Vitamin D needed for development and maintenance of bone tissue is manufactured in the?
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Skin
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Type of medication administration that delivers a slow constant amount of medications into the bloodstream via the skin?
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Transdermal Patches
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Uses mild electrical currents to move ionic drugs through the skin?
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iontophoresis (like charges repel)
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Skin color is based on:
1 amt of pigment in epidermis 2 qty of blood in vessels 3 composition of blood 3a O 3b hemoglobin 3c presence of bile, silver concentration or other chem. |
True
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________in skin helps to protect against UV rays?
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Melanin
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The main pigment of the skin, hair, middle coat of the eyeball, iris, and certain tumors?
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Melanin
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Diffuse spots of pigmentation are characteristics of _______ or lack of pigment?
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albinism
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A pigment in the skin obtained from carrots and other orange or yellow vegetables?
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carotene
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_________is stored in the fatty tissue of the skin (yellow/orange pigment)?
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Carotene
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Gives blood its colour?
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hemoglobin
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Wrinkles are caused by a loss of fat and ______in the underlying tissues?
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Collagen
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When the dermis becomes thin and loses its elasticity?
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parchment skin
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Three most common forms of skin cancer?
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Basal cell carcinoma
squamous cell caricinoma malignant melanoma |
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Basale cell carcinoma involves the?
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Stratum basale (cells) in the epidermis
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True/False
Squamous cell carcinoma involves the epithelium tissue/cells? |
True
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True/False
Malignant melanoma involves the melonocytes in the deepest layer of the epidermis? |
True
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Derm/o
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skin
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corne/o
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horney
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ap/o
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separation from, derivation from
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pil/o
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hair
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alb/i
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white, without pigment
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Produces new cells and prduces melanin?
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Stratum basale/stratum germinativum
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Surface layer of dead cells?
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stratum corneum
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Type of sudoriferous gland that vents directly to the surface?
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Eccrine gland
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_________glands excrete through hair follicles?
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Apocrine
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This layer of skin contains large amounts of?
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Keratin
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The epidermis is_________to the dermis?
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deep
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The dermis is called true skin or?
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Corium layer
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The deepest layer of the dermis that extends into the epidermis?
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dermal papillae
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