Integumentary System Quiz

How much does an adult's skin weigh approximately?

• Five to ten pounds

• Two to five pounds

• Ten to fifteen pounds

• One to three pounds

How many layers is the skin composed of?

• Three

• Two

• Four

• Five

What is the primary function of the integumentary system?

• Protection

• Digestion

• Respiration

• Circulation

What is the outermost layer of the skin called?

• Dermis

• Hypodermis

• Epidermis

• Subcutaneous layer

Which layer of the epidermis is composed of dead cells?

• Stratum spinosum

• Stratum granulosum

• Stratum corneum

• Stratum basale

Where is the stratum lucidum found?

• In all skin areas

• Only in thick skin areas such as the palms of your hands and soles of your feet

• In the dermis

• In the hypodermis

What is the function of the crisscrossing collagen fibers in the reticular layer?

• To form a strong elastic network

• To supply nutrients and oxygen

• To process antigens

• To produce sweat

What structures are found in the reticular layer of the dermis?

• Merkel's cells and Langerhans' cells

• Hair, nails, and glands

• Sweat and oil glands and hair follicles

• Blood vessels and nerves

What is another name for the hypodermis?

• Dermis

• Subcutaneous layer

• Epidermis

• Sudoriferous layer

What are nails primarily made of?

• Collagen

• Keratin

• Elastin

• Protein