Skin Layers
What is the outermost layer of skin?
Epidermis
What is melanoma?
A type of cancer that develops from pigment-producing cells (melanocytes).
List one function of the skin.
Protection, sensation, thermoregulation, or vitamin D synthesis.
What is the primary protein in hair?
Keratin
What is acne?
A skin condition characterized by clogged hair follicles leading to pimples.
What are the two main layers of skin below the epidermis?
Dermis and Hypodermis/subcutaneous layer
What does ABCDE rule stand for?
Asymmetry, Border irregularity, Color variation, Diameter larger than 6mm, Evolving shape or color.
How does the skin help with thermoregulation?
By sweating and adjusting blood flow to the skin.
Name one of the functions of nails.
Protects fingertips and enhances sensation.
Name a common disease affecting the skin.
Eczema, psoriasis, or dermatitis. Answers may vary.
What is the primary function of the dermis?
Provides support and elasticity, contains blood vessels, nerves, and glands.
What type of UV radiation is more harmful?
UVB radiation
What role does the skin play in sensation?
Contains sensory receptors for touch, pain, pressure, and temperature.
What condition is characterized by inflammation of hair follicles?
Folliculitis
What are the symptoms of eczema?
Red, itchy, and inflammed skin.
Name a component found in the hypodermis?
Adipose tissue (fat)
Name one prevention method for skin cancer.
Wearing sunscreen, protective clothing, or avoiding excessive sun exposure.
Explain how the skin protects against pathogens.
Acts as a physical barrier and secretes antimicrobial substances.
Describe how hair contributes to body temperature regulation.
Insulates the body and helps retain heat.
Could you describe the role of keratin in the integumentary system?
It provides strength and waterproofing to skin, hair, and nails.
How do skin layers contribute to homeostasis?
They help regulate temperature, protect against pathogens, and maintain hydration.
What is the significance of early detection?
Early detection improves treatment success and survival rates.
Describe the process of wound healing.
Involves homeostasis, inflammation, proliferation, and remodeling.
How do nails protect the fingertips?
By providing a hard barrier that protects the underlying tissues.
What is psoriasis, and how does it affect the skin?
A chronic autoimmune condition that leads to rapid skin cell production, causing red, scaly patches.