Exploring the Integumentary System

Which of the following is the outermost layer of the human integumentary system?

• Dermis

• Epidermis

• Hypodermis

• Subcutaneous tissue

What is the primary function of melanin in the skin?

• Produces sweat

• Protects against UV radiation

• Stores fat

• Detects touch

Which structure is responsible for producing sweat in the integumentary system?

• Sebaceous gland

• Sweat gland

• Hair follicle

• Arrector pili muscle

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

• Protection

• Sensation

• Blood cell production

• Temperature regulation

Which protein is most abundant in the outer layer of the skin and provides waterproofing?

• Collagen

• Keratin

• Elastin

• Melanin

Which layer of the skin contains most of the sensory receptors?

• Epidermis

• Dermis

• Hypodermis

• Stratum corneum

Which of the following best describes the relationship between the dermis and the epidermis?

• The dermis is superficial to the epidermis

• The epidermis is superficial to the dermis

• Both are the same layer

• The dermis is avascular, while the epidermis is vascular

Which vitamin is synthesized in the skin upon exposure to sunlight?

• Vitamin A

• Vitamin B12

• Vitamin C

• Vitamin D

A person touches a hot surface and quickly pulls their hand away. Which component of the integumentary system is primarily responsible for detecting the heat?

• Hair follicle

• Sensory receptor

• Sebaceous gland

• Melanocyte

If the sebaceous glands become blocked, what is the most likely result?

• Increased sweating

• Formation of acne

• Loss of hair

• Decreased sensation