Chapter 6: The Integumentary System Flashcards
One of the ways the skin helps regulate body temperature is through the evaporation of
sweat
The epidermis is a layer of ___ tissue
epithellium
The second layer of the skin is the
Dermis
The dermis is a layer of ___ tissue
Dense connective tissue
The epidermis is composed of ___ ___ and ___ cells
Stratified
squamos
keratinized epithelial
The skin is the thickest on the ___ of the hands and the ____ of the feet
Palm
Sole
As cells move up from the basement membrane, they eventually
die
The protein material of hair and nails is
keratin
There are ___ layers of the epiderms
five
Dead cells converted to protein make up the ___ ____
Stratum Corneum
A callus on the foot is called a
corn
Cells lose their nuclei and become compact and brittle in the
Stratum Grannulosum
The stratum spinosum contain cells that are ___ in structure
polyhedron
Cells of the epidermis that are capalbe of dividing are found in the
stratum germinativum
Those cells responsible for skin color are
melanocytes
Racial Variation in skin color is dtermined by
melanin
An absence of melanin produces a condition called
albinism
True skin is the
dermis
A specialist concerned with inflammatory responses of the skin and reactions of the immune system is a
allergists or immunologist
Besides mammary glands, ___ is a main characteristic of mammals
hair
a bluish tinge to the skin is called
cyanasis
goose bumps are caused by the ____ ____ muscle
arrector pili
Hair growth begins in the
hair bulb
a nail will grow from the
nail bed
the eponychium is the
cuticle
___ is the oily substance responsible for lubrication of the skin and is a product of the ___ ____
Sebum
Sebaceous gland
The hands and feet are the site of many
sweat glands
sweating causes odor because of ___ activity
bacterial
Sensations recorded by the skin are __ and ___
temperature and pressure
Inhibition of water loss by the skin is due to its ___ content
lipid
A common chronic skin disorder is ____
psoriasis
Herpes simplex causes
cold sores
The varicella (Chickenpox) virus is responsible for
shingles
Sweat glands are activated by
nerves
A patchy skin disease is called
vitiligo
A vaccine is available for children 12 months or older to prevent ________ by the virus varicella zoster
Chickenpox
Impetigo is caused by the bacterium
Staphylococcus Auerus
The dermis is also known as the
Corium
Epidermal Cellular links
Desmosomes
Skin modifications
Appendages
Clear Layer
Stratum Lucidum
Varies skin pigmentation
Melanin
Affected by first-degree burns
Epidermis
Subcutaneous layer
hypodermis
Hair’s principal portion
cortex
hair’s visible portion
shaft
hair texture
keratin
visible nail
nail body
oily gland
sebaceous
salty liquid secretion
sweat
skin function
thermoregulation
skin cancer
melanoma
human Papillomavirus
Warts
A bony prominence on the foot receiving excess friction may develop a
corn
albinism is caused by a lack of
melanocytes
keratinized cells contain no
nucleus
Flexibility, entirety, and whole continuous structure are qualities of the skin due to
Desmosomes
The layer of the epidermis in which mitosis takes place is the stratum
germinativum
Lipid covering of cells is found in the stratum
Lucidum
Racial color differences are a result of variation in quantity of
Melanocytes
True skin contains which of the following
Papillary portion
Cells of the stratum corneum contain how many layers
25 layers
Stratum basale is found in the stratum
germinativum
A bluish tinge of the skin is called
Cyanosis
Besides hair, another main characteristic of mammals is
mammary glands
Hair covers all of the body except
palms of the hands
Arrector pili muscles engage when we get
a chill
Texture of hair is a result of
Keratin
A white crescent located at the proximal end of the nail is the
Lunula
Another name for the eponychium is
Cuticle
Shiny hair is a result of
Sebum
Sebaceous secretion is controlled by the
Endocrine system
Besides fatty oils, blackheads are produced in the presence of
air
Sweat odor is caused by
Bacteria
Exernal environmental changes are registered by receptor sites; these changes are
temperature and pressure
Which of the following are NOT protective functions sunlight bacteria some chemical agents water loss organic pesticides
organic pesticides
Temperature regulation is critical due to excessive heat affecting
enzymes
A condition characterized by baldness that is influenced by genetic factors, hormones, malnutrition, diabetes, drug interactions, and/or chemotherapy is
Alopecia
The skin is involved in the production of
Vitamin D
The most dangerous type of skin cancer is
Malignant Melanoma
A childrens disease that can cause a related disease in adults is
Chikenpox
The herpes simplex virus causes
cold sores
The nail is a modification of
epidermal cells
Which of the following transmit information from receptor sites in the skin to the brain and spinal cord? Sensory neurons sweat glands chemical agents melanocytes viruses
sensory neurons
Keratinization produces distinct layers of the epidermis called
strata
