Integumentary System Post-quiz

New skin cells are produced in the

• stratum basale

• cutaneous membrane

• stratum corneum

• dermis

What protein is primarily responsible for the strength of the skin?

• Keratin

• Collagen

• Elastin

• Melanin

Where does a hair originate and start its growth from ?

• Hair shaft

• Hair follicle

• Hair bulb

• Hair cuticle

Eccrine Glands _____________________

• lubricate the skin with sebum

• have an exit portal straight to the skin's surface

• have an exit portal that enters the hair follicle

• do not exit the skin at any point and use diffusion to exit

Which of the following is NOT a function of the integumentary system?

• Protection against pathogens

• Regulation of body temperature

• Production of red blood cells

• Sensation of touch

What is the primary function of melanin in the skin?

• To provide elasticity

• To protect against UV radiation

• To produce sweat

• To regulate body temperature

Which vitamin is synthesized by the skin when exposed to sunlight?

• Vitamin A

• Vitamin B

• Vitamin C

• Vitamin D

True/False: The Hypodermis is considered a layer of our skin.

• True

• False

What is the main component that makes up our nails?

• Collagen

• Keratin

• Elastin

• Melanin

Which skin layer contains blood vessels and nerves?

• Epidermis

• Dermis

• Hypodermis

• Stratum corneum