Griffin Tech A&P AHS 101 CH 5
Terms
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- The skin its appendages, blood vessels, nerves, and sensory organs make up what system?
- Integumentary
- Integument means?
- Covering
- The outer most layer portion of the skin is called strata or?
- epidermis
- True skin?
- dermis
- Composed of only epithelial cells and contains no blood vessels?
- Epidermis
- Has framework of connective tissue and contains many blood vessels nerve endings, and glands?
- Dermis (true skin)
- This layer of skin is nourished by capillaries not blood vessels?
- Epidermis
- New epidermis cells are produced in the deepest layer which is closest to the?
- Dermis
- The cells are constantly dividing into daughter cells which are then pushed upward toward the surface of the skin?
- Stratum Basale or stratum germinativum
- Serves to thicken and protect skin?
- Keratin
- The uppermost layer of the epidermus is known as?
- Stratum Corneum
- Contain flat cells filled with keratin and horny?
- Stratum Corneum
- Also known as the protective layer?
- Stratum Corneum
- The term meaning to cells of surface are constantly being lost and replaced?
- exfoliation
- Located between the stratum corneum and stratum basale?
- Stratum epithelium
- Produced in the deepest layer of the epidermis also referred to as pigment?
- Melanin
- Cells that produce melanin?
- melanocytes
- Irregular patches of melanin?
- Freckles
- Thick layers of skin are located where on the body?
- soles of feet, palms of hands
- Delicate layers of skin are located where on the body?
- eyelids
- Portions of the dermis that extend upward into the epidermis?
- dermal papillae
- Finger prints and footprints are an examples of ?
- dermal papillae
- The superficial layer of the skin?
- epidermis
- The deep layer of the skin?
- dermis
- Referred to as the hypodermis or superficial fascia?
- Subcutaneous Layer
- This layer connects the skin to the surface muscles?
- Subcutaneous Layer
- This layer consists of loose connective tissue (aerolar) and adipose (fatty)?
- Subcutaneous Layer
- The largest organ in the body weighing about 4kg is the?
- Skin
- Thick skin is about _____mm deep?
- 1 mm
-
Thin skin is about ______mm
deep? - 0.1 mm
- Layer of skinnot found in thin skin is?
- Stratum licidum
- Both the stratum ________and stratum _________ make skin resistant to abrasions?
- corneum and lucidum
- Characterized by epidermis ridges and numerous sweat glands, but lacks hair and sebaceous glands?
- Thick skin
- Coverd with hair that helps prevent heat loss?
- Thin skin
- Contains sebaceous glands?
- Thin skin
- Blood vessels that supply O & help to regulate body temp run through the?
- Subcutaneous (superficial fascia or hypodermis)
- Layer of skin that are rich in nerves and nerve endings?
- Subcutaneous (superficial fascia or hypodermis)
- What is the composition of the subcutaneous layer?
- Contains aerolar and adipose tissue
- Accesory of the skin that is sac-like in structure and secretes sebum?
- sebaceous glands
- Lubricates the skin and hair to prevent drying?
- sebaceous glands
- The ducts of the sebaceous glands open into the?
- hair follicle
- Babies are born with a covering that resembles cream cheese known as?
- vernix caseosa(cheesy varnish)
- Modified sebaceous glands that are associated with eyelashes and lubricates the eyes?
- meibomian glands
- Sebaceous glands that become infected result in?
- Pimples
- When a sebaceous gland becomes blocked and increases in size?
- sabaceous cyst
- Coiled tubelike structures located in the dermis and the subcutaneous tissue?
- Sudoriferous glands
- Eccrine type sweat glands?
- Sudoriferous glands
- Helps in the cooling of the body?
- Sudoriferous glands
- Each gland has an secretory portion and an excretory tube that extends to the surface and opens to a pore?
- Sudoriferous glands
- Present in the armpits and groin and become active at puberty ?
- apocrine sweat glands
- Modified sweat gland in ear canals?
- ceruminous glands
- Modified sweat glands that secrete cerumen?
- ceruminous glands
- Modified sweat glands located at the edges of the eylids?
- Ciliary glands
- Modified sweat glands located in the breast or mammary?
- mammary glands
- Each hair developes from living cells located in a bulb at the base of the ?
- hair follicle
- Melonocytes add pigment to the developing ______?
- hair
- The part of the hair that projects above the surface is known as the?
- shaft
- The portion of the hair that is below the skin is known as the ?
- root
- Attached to the follicle is a thin band of involuntary muscle known as?
-
arrector pili (goosebumps)
(hair raiser) - Each hair developes within a sheath called?
- Hair follicle
- Made up of hard keratin produced cells that originate in the outer layer of the statum corneum?
- Nails
- Growth region of the nails?
- nail matrix
- Located under the proximal region of the nail?
- nail root
- The ______rests on the nail bed?
- nail plate
- An extension of the stratum corneum which seals the space between the nail plate and the skin above the root?
- cuticle
- The four major functions of the skin?
-
1. Protection against infection
2. Protection against dehydration
3. Regulating body temp
4. collection of sensory info - Forms a tight intelocking patterm that is resistant to penetration?
- stratum corneum
- Keratin and sebaceous glands help to prevent?
- dehydration
- In cold conditions vessels in the skin _______to reduce the flow of blood to the surface and diminish heat loss?
- Narrow (constricts)
- In warm conditions vessels in the skin _______ to increase the flow of blood to the surface to dissipate heat?
- Widen (dilate)
- The evaporation of perspiration from the ________glands help to draw heat away from the skin?
- Sudoriferous
- Regarded as one of the chief sensory organs of the body?
- Skin
- Contains free nerve endings to detect sensory information?
- skin
- Touch receptors are known as?
- Meisser corpuscle
- Deep pressure receptors are known as?
- Pacinian corpuscle
- Water and electrolytes are excreted through?
- Sudoriferous glands
- Vitamin D needed for development and maintenance of bone tissue is manufactured in the?
- Skin
- Type of medication administration that delivers a slow constant amount of medications into the bloodstream via the skin?
- Transdermal Patches
- Uses mild electrical currents to move ionic drugs through the skin?
- iontophoresis (like charges repel)
-
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
- ________in skin helps to protect against UV rays?
- Melanin
- The main pigment of the skin, hair, middle coat of the eyeball, iris, and certain tumors?
- Melanin
- Diffuse spots of pigmentation are characteristics of _______ or lack of pigment?
- albinism
- A pigment in the skin obtained from carrots and other orange or yellow vegetables?
- carotene
- _________is stored in the fatty tissue of the skin (yellow/orange pigment)?
- Carotene
- Gives blood its colour?
- hemoglobin
- Wrinkles are caused by a loss of fat and ______in the underlying tissues?
- Collagen
- When the dermis becomes thin and loses its elasticity?
- parchment skin
- Three most common forms of skin cancer?
-
Basal cell carcinoma
squamous cell caricinoma
malignant melanoma - Basale cell carcinoma involves the?
- Stratum basale (cells) in the epidermis
-
True/False
Squamous cell carcinoma involves the epithelium tissue/cells? - True
-
True/False
Malignant melanoma involves the melonocytes in the deepest layer of the epidermis? - True
- Derm/o
- skin
- corne/o
- horney
- ap/o
- separation from, derivation from
- pil/o
- hair
- alb/i
- white, without pigment
- Produces new cells and prduces melanin?
- Stratum basale/stratum germinativum
- Surface layer of dead cells?
- stratum corneum
- Type of sudoriferous gland that vents directly to the surface?
- Eccrine gland
- _________glands excrete through hair follicles?
- Apocrine
- This layer of skin contains large amounts of?
- Keratin
- The epidermis is_________to the dermis?
- deep
- The dermis is called true skin or?
- Corium layer
- The deepest layer of the dermis that extends into the epidermis?
- dermal papillae