Integumentary System: Mastering the Epidermis
Stratum corneum
Stratum spinosum
Melanin
melanocytes
Stratum lucidum
Stratum basale
Epidermis as a whole
desmosomes
Stratum granulosum
Keratin
Merkel cells
Langerhans cells
Directions: Choose the word that correctly describes the statement. Some terms may
be used for than once.
Composed of stratified squamous epithelial tissue
1.
Layer that rests on the basement membrane
2.
Layer that is present only in thick skin
3.
Layer of spiny-shaped or prickly cells
4.
Pigment which is responsible for variations in skin color
5.
Layer that is actively undergoing mitosis
6.
Layer still contains many desmosomes
7.
Outermost layer of the epidermis
8.
9.
Type of sensory receptor located in the epidermis,
sensitive to touch
Avascular
10.
Clear layer
11.
12.
Irregularly shaped cells with long processes, located in
the stratum basale
13.
Layer that is about 25 cell layer thick, dead cells filled
with keratin
Layer that is very active in keratinization
14.
15.
16.
17.
Fibrous, tough protein
Layer than rubs and flakes off slowly
Activated to produce melanin in response to exposure
to sunlight
Intercellular junctions
18.
19.
All races have the same number of these, what differs is
the amount of pigment they produce
20.
Layer that consists of two to three layers of flattened cells
with granules present
21.
Cells lose their nuclei in this layer and become compact
and brittle
Single layer of cuboidal or columnar cells
22.
Receive nourishment from blood vessels in the dermis
23.
24.
Reside in the epidermis and are part of the immune
system
25.
Cells in this layer give rise to all other upper layers of the
epidermis