Exploring the Integumentary System: Key Concepts and Functions

What is the largest organ of the human body?

• Lungs

• Skin

• Liver

• Heart

Which layer of the skin is avascular?

• Dermis

• Epidermis

• Hypodermis

• Subcutaneous layer

What is the function of keratinocytes in the epidermis?

• Produce melanin

• Detect touch

• Toughen tissue and make it resistant to stress

• Produce sweat

Which layer of the epidermis is the thickest?

• Stratum granulosum

• Stratum lucidum

• Stratum corneum

• Stratum spinosum

What type of connective tissue is found in the papillary layer of the dermis?

• Cartilage

• Adipose tissue

• Loose connective tissue

• Dense regular connective tissue

What is the primary function of melanin in the skin?

• Anchor the skin to muscles

• Produce sweat

• Protect keratinocytes from DNA mutations

• Detect touch

Which type of hair is found on the scalp and around the eyes?

• Lanugo

• Vellus hair

• Terminal hair

• Non-pigmented hair

What is the function of sebaceous glands?

• Produce sweat

• Produce sebum (oil)

• Produce ear wax

• Secrete milk

Which type of burn damages all three layers of the skin?

• First-degree burn

• Second-degree burn

• Third-degree burn

• Superficial burn

What is the most dangerous type of skin cancer?

• Squamous cell carcinoma

• Malignant melanoma

• Basal cell carcinoma

• Keratinocyte carcinoma