Dermis
The epidermis
Cells
Melanin
Nerves & Glands
100

The lower layer of the dermis where collagen and elastin are more tightly packed together.

What is the reticular layer?

100
This layer of the epidermis is also called the basal layer or basement membrane. It is where skin cell mitosis takes place. 

What is the stratum germinativum?

100

This cell produces pigment granules that are distributed to the skin cells.

What is a melanocyte?

100

This is the type of melanin that produces pink pigment.

What is pheomelanin?

100

This is another name glands found all over the body with openings on the skin's surface through pores; not attached to hair follicles; secretions do not produce an offensive odor. 

What are eccrine glands?

200

The dermis also goes by this name.

What is derma, corium, cutis or true skin?

200

In this layer, the skin cells become spiky with appendages called desmosomes that allow for intercellular communication. 

What is the stratum spinosum?

200

This is an epidermal cell composed of keratin, lipids, and other proteins?

What is a keratinocyte?

200

This is the enzyme that stimulates the production of melanocytes and thus producing melanin.

What is tyrosinase?

200

These nerves send information to the Central Nervous System in reaction to heat, cold, pressure, pain, and touch. 

What are sensory or afferent nerves?

300

This protein fiber found in the dermis that gives the skin its stretch. 

What is elastin?

300

This layer is known for its translucent cells.

What is the stratum lucidum?

300

This is a guard cell that protects the body from pathogens.

What is the Langerhans cell?
300

Also known as burning rays; this type of radiation causes burning of the skin as well as tanning, skin aging and cancer.

What UVB radiation?

300
What are coiled structures attached to hair follicles found in the underarm; secrete sweat

What are apocrine glands?

400

The name for the part of the skin where dermis meets the epidermis. State Boards often consider this the boundary that estheticians cannot cross. 

What is the dermal-epidermal junction?

400

This is the top layer of the skin where desquamation takes place.

What is the stratum corneum?

400

This is a type of lymphocyte identify molecules that have foreign peptides; help regulate immune responses

What is a T cell?

400

This is an external factor that triggers the skin to darken to protect the body from damage.

What is UV exposure?

400

These nerves are attached to the sweat and oil glands and influence their activity. 

What are secretory nerves?

500
They are membranes of ridges and grooves that attach to the epidermis.

What are dermal papillae?

500

The production of keratin and intercellular lipids takes place in this layer.

What is the stratum granulosum?

500

This is the division of cells that creates two identical daughter cells.

What is mitosis?

500

This is a spherical structure that carries pigment granules.

What is a melanosome?

500

These nerve fibers convey impulses from the brain or spinal cord to muscles or glands; stimulate arrector pili muscles

What are Motor or efferent?

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