INTEGUMENTARY SYSTEM

Keratinocytes in the deeper layers of the epidermis

• melanocytes

• basal cells

• tactile cells

Tags

NGSS.HS-LS1-2

NGSS.HS-LS1-4

intraepidermal macrophages that participate in immune responses

• Merkell cells

• Langerhans cells

• Basal cells

bind cells to each other

• hyaluronic acid

• desmosomes

• hemidesmosomes

Hemidesmosomes

• contain lamellar granules

• bind cell to basement membrane

• bind cells to each other

Epidermal layer where new keratinocytes are formed

• Stratum Corneum

• Stratum Spinosum

• Stratum Basale

Epidermal layers where cells undergo apoptosis

• Stratum Lucidum

• Stratum Granulosum

• Stratum Spinosum

Stratum Lucidum

• deepest layer of the epidermis

• consists of 25 to 30 layers of flattened dead keratinocytes

• Present only in the areas with thick skin

The skin is comprised of two layers (epidermis and dermis) that cover a third fatty layer, hypodermis.

• TRUE

• FALSE

Stabilizes and connects the skin to the underlying fascia, muscle and bone

• EPIDERMIS

• DERMIS

• HYPODERMIS

Whitish, crescent-shaped area of the proximal end of the nail body

• Free edge

• Lunula

• Eponychium