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34 Cards in this Set

  • Front
  • Back
Integumentary System is composed of two principle layers. Name these layers
1. Epidermis - Stratified Squamous ET
2. Dermis - Regular Dense CT
Hypodermis or Superficial Fascia
deep to the integument - not part of it
(Adipose CT)
Name the 4 epidermis cells and their functions
1. Keratinocytes - produces keratin (water proof the skin
2. Melanocytes - produce melanin (makes skin darker) The darker the skin, the higher melanin, allows you to tan and protection from UV
3. Langerhans'/Dendritic Cells - Function immunity
4. Merkel Cells - Light touch (gentle)
Name the 5 layers of Epidermis

1. Stratum Basale (aka Stratum Germinativum)
2. Stratum Spinosum
3. Stratum Granulosum
4. Stratum Lucidum
5. stratum Corneum
Free nerve endings
Name the 2 layers in dermis
1. Papillary Layer (finger prints)
2. Reticular Layer
Papillary Layer
layer of Dermis - superficial dermal region composed of areolar CT

finger prints
1. Dermal Papillae - bumps in dermis produce finger prints
2. Meissner's Corpuscles - inside a dermal papillae. Responsible for light touch
Reticular Layer
layer of Dermis - the deepest skin layer composed of dense irregular CT

1. Pacinian or Laminated Corpuscles
2. Arrector pili muscle
3. Sudoiferous Glands
a. Apocrine
b. Eccrine
4. Sebaceous Glands
Pacinian or Laminated Corpuscles
part of reticular layer

(onion looking) responsible for deep touch and migration
arrector pili muscle
part of reticular layer

pulls on the hair to stand up. Gives you goose bumps (smooth MT)
sudoriferous glands
part of reticular layer

produce sweat (sweat glands)
1. Apocrine - produces body odor (thicker, waxier substances)
2. Eccrine - watery substances (sweat)
sebaceous glands
part of reticular layer

connected to hair follicles. Produces sebum; moisturizes and protects the hair
Name the Cutaneous Glands
Located in the dermis
1. Sudoriferous Glands
a. Eccrine Sudoiferous Glands
b. Apocrine Sudoriferous Glands
2. Sebaceous Glands - produce Sebum
Name the 2 categories of cutaneous glands
1. sebaceous glands
2. sudoriferous (sweat) glands
sebaceous glands
found all over the skin except for palms and soles of feet
product of sebaceous glands. mixture of oily substances and fragmented cells that acts as a lubricant to keep the skin soft and moist
sudoriferous glands
Sweat Glands
Eccrine glands - produce water, salts and urea
Appocrine glands - found in axillary and genital areas. Secrete milk protein and fat rich substances
The epidermis is made of _____ tissue
Stratified Squamous ET
The Papillary layer is made up of _____ tissue
Areolar CT
The reticular layer is made up of _____ tissue
dense irregular CT
structure consisting of a medulla, a central region surrounded first by the cortex and then by a protective cuticle
the hair structure consists of a medulla, a central region surrounded first by the cortex and then by a protective cuticle
The portion of the hair enclosed within the follicle
portion projecting from the scalp surface
hair bulb
collection of well-nourished germinal epithelial cells at the basal end of the follicle
structure formed from both epidermal and dermal cells.

Its inner epithelial root sheat, with two parts (internal and external), is enclosed by a thickened basement membrane, the glassy membrane, and a connective tissue root sheat, which is essentially dermal tissue
small nipple of dermal tissue that protrudes into the hair bulb from the connective tissue sheath and provides nutrition to the growing hair
cuticle and cortex
the hair structure consisting of medulla, a central region surrounded first by the cortex and then by a protective cuticle
what is this an image of?
entire skin
What Epidermis Layer is this?
Stratum Basale
What layer of Epidermis is this?
Stratum Basale
What Epidermis layer is this?

And what is underneath?
Stratum Granulosum

What Epidermis layer is this?
Stratum Corneum
What layer of Cutaneous Glands is this?
Eccrine Sudoriferous Glands (sweat glands)
These are hair follicles off the scalp. What is the thing next to the hair follicle?
Sebaceous Glands