Skin HW

Which layer of the skin contains blood vessels AND nerve fibers?

Dermis

integument order

epidermis,dermis, hypodermis

The epidermis is very vascular.

false

Check all the statements that are true regarding the subcutaneous layer (hypodermis).

-The subcutaneous layer is not part of the integument. The subcutaneous layer is not part of the integument. Correct -The subcutaneous layer consists of areolar and adipose connective tissue. -One of the functions of the subcutaneous layer is thermal insulation.

Stratum corneum

20-30 layers of dead keratinocytes

Which layer of the epidermis is closest to the surface?

Stratum Corneum

In which layer of the epidermis are cells constantly dividing?

Stratum basale

melanin

is a pigment, protects the skin from UV radiation, is located in the epidermis

The arrector pili muscle

is a smooth muscle, causes hair to "stand on end", contracts when cold forming goos bumps

Check all that are a function of the integument.

protection, prevention of water loss, temperature regulation, immune defense

Which type of gland opens into hair follicles and secretes sweat after puberty

Apocrine sweat glands

What is responsible for skin color?

Carotene, Melanin, Hemoglobin

Stratum spinosum

Contains keratinocytes and dendritic cells

Stratum basale

Deepest layer

What type of gland is associated with hair follicles?

Sebaceous glands

What happens to cells when they move from the epidermis to the surface of the skin?

They die

Stratum lucidum

Thin, clear layer

Stratum granulosum

Three to five layers of keratinocytes

Keratin is

a waterproof protein.

The integument consists of the epidermis, which is composed of _____________, and the dermis, which is composed of ____________ connective tissue.

stratified squamous epithelium; dense irregular and areolar