Integumentary System

Explore Part II (Cards for matching activity) Steps 1-3

Skin structures & Appendages for matching cards

outermost layer of the skin containing dead cells

What is the epidermis?

thick layer of skin beneath the outermost layer containing several accessory structures

What is the dermis?

What is the hair follicle?

Structure responsible for producing the hair

produce and secrete oil to coat and protect the hair

What is the function of sebaceous glands?

Produce and secrete sweat when internal body temperature is elevated Contracts to make hair stand up, usually as a response to decrease in internal body temperature.

What is the function of sudoriferous glands?

What is the function of the arrector pili muscle?

Detection of touch, pressure, pain and temperature

What is the function of the sensory receptors?

nutrient/waste exchange and temperature regulation

What is the purpose of dermal blood vessels?

What is the function of the hypodermis layer? (or subcutaneous layer)

stores fat, protects from mechanical injuries, connects skin to muscle and bones

cover and protect the distal ends of the fingers and toes

What is the purpose of fingernails?

What is the function of the stratum basale layer?

contains living cells that divide and travel to the surface of the skin

outermost layer of the epidermis, containing keratinized, dead cells

What is the stratum corneum?

What areas of the body have skin that contains the stratum lucidum layer?

palms and soles of the feet

hard fibrous protein found in epidermal cells, hair and nails

What is keratin?

dark or brown pigmented protein that absorbs UV light from the sun

What is melanin?