Partial preview of the text
Download Anatomy of the Integumentary System: Structure and Functions of the Skin and more Quizzes Physiology in PDF only on Docsity!
integumentary system is made up of
the skin and its appendages - including hair, nails, and
glands
TERM 2
epidermis is the
DEFINITION 2
thin, superficial epidermis
TERM 3
dermis
DEFINITION 3
deep and thicker
TERM 4
hypodermis filled with
DEFINITION 4
adipose and loose connective tissue
TERM 5
keratin
DEFINITION 5
a tough fibrous protein , the most important structural
element of hte outer skin
melanocytes
give our skin the color
TERM 7
what do melanocytes do
DEFINITION 7
they reduce the amount of potentially dangerous UV
radiation that would otherwise penetrate into the deeper
layers of our skin and cause cellular damage
TERM 8
merkel cells detect what
DEFINITION 8
light touch, receptors for light touch
TERM 9
surface film
DEFINITION 9
thin film coating the skin, made up of a mixture of sweat,
sebum, dead cells/fragments, various chemicals, protects the
skin
TERM 10
epidermis
DEFINITION 10
superficial primary layer of hte skin, made up of kertanized
stratified squamous epithelium
dermoepidermal junction
includes fibers and unique chemical gels; together with the
basement membrane cements or glues the superficial
epidermis to the dermis belowThe dermoepidermal junction
is the area of tissue that joins the epidermal and the dermal
layers of the skin.
TERM 17
dermis
DEFINITION 17
deep primary layer of the skin, made up of fibrous tissue,
includes some blood vessels, muscles and nerves
TERM 18
papillary layer
DEFINITION 18
loose fibrous tissue with collagenous and elastic fibers, forms
nipplelike bumps includes tactle corpuscles and other
sensory receptors
TERM 19
reticular layer
DEFINITION 19
tough network of collagenous dense irregular fibrous tissue
forms most of the dermis
TERM 20
hypodermis
DEFINITION 20
loose connective tissue and adipose tissue, under the skin
includes fibrous bands of skin, ligaments that strongly
connect the skin to underlying structures ,
Thin skin
most of our bodys surface is covered by thin skin
TERM 22
Thick skin
DEFINITION 22
hairless skin covering the palms of the hands, fingertips,
soles of the feet, and other body areas subject to friction
TERM 23
skin pigementation is regulated by
DEFINITION 23
density of root like projectionstransport different type of
melanosomesdistribute kelanocytes in the skin
TERM 24
beta carotine
DEFINITION 24
pigment essential for skin growth; stored in skin tissue and
then converted into vitamin A;
TERM 25
what are the functions of the skin
DEFINITION 25
protection - protection from dehydration, microrganisms,
ultraviolet light, mechanical traumasensation - pain, heat , cold,
pressure, touchpermits movement and growth without injury -
body growth and change in body countours during
movmentendocrine - vitamin D productionexcretion - water, urea,
ammonia, uric acidimmunity - destruction of microorganisms and
interaction with immune system cellstemperature regulation
cortex
more superficial portion around the hair
TERM 32
cuticle
DEFINITION 32
outer surface of the hair
TERM 33
eumelnin creates what hair
color
DEFINITION 33
many shades of blonde and brunette hair
TERM 34
pheomelanin
DEFINITION 34
gives hair a reddish tint
TERM 35
straight hair has what kind of shaft
DEFINITION 35
round, cylindrical shaft
wavy hair has what kind of shaft
flatter shaft that is not a strong
TERM 37
what does sebum do
DEFINITION 37
lubricates and conditions the hair and surrounding the skin
TERM 38
head hair lives between
DEFINITION 38
2 - 6 years
TERM 39
nail bed
DEFINITION 39
visible part of each nail
TERM 40
root
DEFINITION 40
lies in a flat sinus hidden by a fold of skin bordered by the
cuticle
sebaceous glands secrete
oil for the lubrication and maintenance of the hair and skin
TERM 47
ceruminous glands
DEFINITION 47
appear in the external ear canal, ear wax
TERM 48
what does the cerumen do
DEFINITION 48
protects the skin of the ear canal from pathogens, small
insects, and dehydration
