Integumentary Unit Test 2025

What is the correct order of the layers of the skin from superficial (top layer) to deep?

• Epidermis, hypodermis, dermis
• Dermis, epidermis, hypodermis
• Epidermis, dermis, hypodermis
• Dermis, hypodermis, epidermis

Which is not a function of the skin?

• Energy
• Protection
• Sensations
• Temperature regulation
• Excretion

What is the outer layer of the two main layers of the skin?

• Dermis
• Epidermis
• Hypodermis
• Endodermis

What is the 2nd layer of the two main layers of the skin. It contains nerves, blood vessels, sweat glands, and hair follicles.

• Dermis
• Epidermis
• Hypodermis
• Endodermis

What layer of the epidermis is constantly dividing and pushing up cells into the next layer. Letter D below in diagram

• Stratum lucidum
• Stratum corneum
• Stratum basale
• Stratum spinosum
• Stratum granulosum

What is the layer of the epidermis called were the cells here begin to flatten and disintegrate? They have accumulated keratin granules and are responsible for water-proofing the skin. Letter B below in diagram

• Stratum lucidum
• Stratum corneum
• Stratum basale
• Stratum spinosum
• Stratum granulosum

What is the epidermal layer of dead cells 20-30 thick called? These thick, keratinized cells protect the deeper layers, and they shed regularly from the body. Letter A below in diagram

• Stratum lucidum
• Stratum corneum
• Stratum basale
• Stratum spinosum
• Stratum granulosum

What is the name of the layer of the epidermis that is known as the “Spiny layer”-named for the irregular shape of the cells? It is several cells thick and contains pre-keratin filaments. Letter C below in diagram

• Stratum lucidum
• Stratum corneum
• Stratum basale
• Stratum spinosum
• Stratum granulosum

What is the clear layer of the epidermis that is a thin layer of translucent cells only found in thick skin of the palms and soles of feet?

• Stratum lucidum
• Stratum corneum
• Stratum basale
• Stratum spinosum
• Stratum granulosum

The hypodermis (subcutaneous layer) -

• cells here begin to flatten, and disintegrate. Accumulate keratin granules, responsible for water-proofing the skin.
• is a thin layer of translucent cells only found in thick skin
• is composed of loose, fatty connective tissue that connects the skin to the muscle or bone
• is composed of a papillary layer and reticular layer