Full-thickness burn

Greatest risk of infection

Complete destruction of epidermis and dermis

partial-thickness burn

causes injury to upper layers of dermis

blisters, severe pain, swelling, fluid loss

scarring common

partial-thickness burn

minor discomfort, some redness

surface layer may peel

no blistering

tissue destruction minimal

• Asymmetry
• Border
• Color
• Diameter

most serious form of skin cancer

sometimes develops from a benign or noncancerous pigmented mole, then transforms into a dark spreading cancerous lesion

most common skin cancer

usually appears on upper face

originates at the base of epidermis

less likely to mestastasize

appears first as small, raised lesion that erodes in center, bleeding crusted center

common skin cancer

slow-growing malignant tumor of the epidermis

begin as hard, raised nodules that are usually painless

squamous cell carcinoma

basal cell carcinoma

malignant melonoma

accumulates in and enlarges some of the ducts of the sebaceous glands forming white pimples

when exposed to air, form blackheads

lubrication for hair and skin secreted from sebaceous gland tiny ducts

"nature's skin cream"

prevents skin from drying and cracking

glands that secrete oil for the hair and skin

grow where hair grow

Sweat plays a critical role in helping the body

___________  __  ___________  _________________

Sweat glands:

More numerous, important wipe spread

Produce perspiration / sweat

Sudoriferous (sweat) glands

Sebaceous glands

Under the nail

Layer of epithelium

bulboid corpuscles

(Krause end bulbs)

Located close to the skin surface

Detects light touch

Deep in the dermis

Detects pressure on the skin surface

Muscle that causes "goose bumps"

by pulling up on a hair follicle and down on part of the skin

Hair growth begins from a small, cap-shaped cluster of cells called the _______ ___________.

Located at the base of the follicle.

Important part of the dermal-epidermal junction that helps bind the skin layers together.

Also form "fingerprints"

brown skin pigment

the higher the concentration, the deeper the color

Cells of the innermost layer of the epidermis.

Undergo mitosis & reproduce themselves.

Fat in the ___________________

layer insulates the body from extremes of heat & cold.

Deeper of the two layers of skin.

Made up largely of connective tissue.

Outermost layer of the skin.

Thin sheet of striatified squamous epithelium.

epidermis

dermis

Inflammation of the serous membranes in the abdominal cavity.

Sometimes a serious complication of an infected appendix.

Thin layer of simple squamous epithelium

and

basement membrane

_______________________ membrane

Skin

Primary integumentary organ

Cutaneous

Serous

Mucous

epithelial membrane

connective tissue membrane