Skin Anatomy

The protective dead layer of cells of the outer epidermis is called the:

• stratum spinosum

• stratum granulosum

• stratum corneum

• stratum basale

Melanocytes lie within the _________________ of the skin

• stratum corneum and top layers

• deepest dermis

• stratum spinosum and stratum lucidum

• stratum basale and upper dermis

What is one important function for melanin?

• cause the skin to be cooler

• increase the amount of blood vessels

• strengthen the skin or eyes

• absorb harmful radiation

Tags

NGSS.MS-LS4-4

The epidermal ridges or fingerprints are probably caused by the _____.

• genes in the epidermis

• dermal papillae

• smooth muscle in dermis

• amount of keratin in cells

Tags

NGSS.MS-LS1-5

The strength of the dermis would mainly be due to _____.

• the amount of blood vessels

• the distribution of elastic fibers

• the presence of collagen fibers

• the thickness of the layers

It is the body's __________________ glands that secretes an oily liquid that naturally moisturizes the skin.

• sweat gland

• eccrine

• sebaceous gland

• apocrine

The layer that binds skin to deep tissue layers.

• Stratum Lucidum

• Dermis

• Stratum Granulosum

• Reticular Layer

What layer is represented by letter B?

• Stratum Corneum

• Dermis

• Stratum Lucidum

• Epidermis

What layer provides insulation and shock absorption?

• Epidermis

• Melanocytes

• Stratum Basale

• Hypodermis

What layer produces a protein called keratin?

• Stratum Granulosum

• Stratum Spinosum

• Stratum Corneum

• Stratum Basale