Integumentary Test Part 2 Flashcards
What is the location of the Epidermis?
Superficial layer of the skin
What tissues are found in the Epidermis
Stratified squamous epithelium
What is the function of the Epidermis?
Protective layer of the skin
What is the location of the Dermis?
Under/inferior to the Epidermis
What tissues are found in the Dermis?
Connective tissue
What is the function of the Dermis?
Protect deeper layers of skin + temperature regulation
What is the location of the Hypodermis?
Under/inferior the Dermis
What tissues are found in the Hypodermis?
Adipose tissue
What is the function of the Hypodermis?
Body insulation
Melanocytes description
Spider shaped cells, found in the statum basele, that produce melanin
Langerhans cells description
Cells that ingest foreign substances and activate our immune system that is found in spinosum
Merkel cells description
In the junction between dermis and epidermis, sense light touch, tactile epithelial cells
Keratinocytes description
Dead cells on superficial layer of the epidermis that protects from abrasion and penetration
Stratum granulosum description
living cells, helps form keratin, releases lamellar bodies, inferior to stratum lucidum
Stratum corneum description
Dead cells, superficial layer of the epidermis, protects against penetration
Stratum lucidum description
Dead cells, “clear layer”, found in thick skin, protects layer underneath and prevents water loss and infection
Stratum Spinosum
Living cells, under the stratum graniosum, makes skin strong and flexible
Stratum basale
Living cells, deepest epidermal layer, reproduces cells
Vein
Large blood vessel that takes away carbon dioxide and waste
Artery
Large blood vessel that brings oxygen and nutrients
Capillary loop
Arteries and viens exchange substances here
Arrector Pili Muscles
A muscle that contracts to raise hair on end
Motor nerves
Sends messages from brain to the arrrector pili muscles, sebaceous glands, and sudiruferous glands
Sensory nerves
Sends messages from the Merkel cells, meissner’s corpuscles, free nerve endings and pacinian corpuscles to the brain