Skin Structure and Functions

The video discusses the integumentary system, focusing on the skin's functions: protection, temperature regulation, waste removal, and UV protection. It explains the three skin layers: epidermis, dermis, and hypodermis. The epidermis contains keratin and melanocytes, which produce skin color. Skin cancer, particularly melanoma, is highlighted, with advice on protective measures. The dermis includes blood vessels, nerves, and hair follicles, while hair and nails serve protective roles. The hypodermis is a fat and connective tissue layer.

What is one of the primary functions of the skin?

• To digest food

• To regulate body temperature

• To absorb nutrients

• To produce red blood cells

Which layer of the skin is the outermost?

• Dermis

• Hypodermis

• Epidermis

• Subcutaneous

What is the role of keratin in the epidermis?

• To produce sweat

• To regulate temperature

• To protect against water loss

• To provide skin color

What pigment is responsible for skin color?

• Elastin

• Collagen

• Melanin

• Keratin

Which type of skin cancer is considered the most dangerous?

• Actinic keratosis

• Basal cell carcinoma

• Squamous cell carcinoma

• Melanoma

What is a key component found in the dermis?

• Melanocytes

• Dead cells

• Keratin

• Blood vessels

What is the primary function of hair on the body?

• To absorb sunlight

• To produce melanin

• To protect against dirt and materials

• To regulate body temperature

Where do nails originate from?

• Dermis

• Epidermis

• Nail root

• Hair follicles

What is the primary composition of the hypodermis?

• Fat and connective tissue

• Bone tissue

• Nerve tissue

• Muscle tissue

What lies immediately under the dermis?

• Hypodermis

• Epidermis

• Muscle layer

• Subcutaneous layer