Nails
This is what everyone sees as the general fingernail
Nail Plate
Name two places on the body hair is not found.
Palms and soles
Dead layer of the skin where cells shed continuously
Stratum corneum
Sweat includes fat, causing it to be milky and viscous
Apocrine Glands
What is the importance of lamellar bodies
The white crescent at the bottom of the nail, also known as "little moon"
Lunula
Hair is also known as...
Pili
Sense pain, heat, cold, itching, and tickling
Free nerve endings
Give two functions of sebum
To keep hair oiled and waterproof our skin
What is one thing your skin does when you are too cold to warm the body up? Explain.
Highly sensitive pinkish colored soft tissue underneath the nail plate
Nail bed
What layer of the skin is the hair follicle located in? Be specific.
Reticular layer of the dermis
This layer is only found in thick skin
Stratum Lucidum
Name 3 things found in eccrine sweat
Water, salt, nitrogenous waste
What corpuscles sense heavy pressure and vibrations? Which sense light pressure?
Pacinian; meissner
Where the nail grows from
Nail Matrix
Name both parts of the hair you can see when you pull it out of your head
Shaft and root
Name layers of the skin from SUPERFICIAL to DEEP
Stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, stratum basale
This type of sweat gland in more abundant than the other
Eccrine Sweat Gland
In males, hair starts as _______, then transitions to _________ after puberty
Vellus; Terminal
Also known as the cuticle
Eponychium
Explain the hair shaft shape and follicle angle to texture of the hair, for all three types of hair (straight, wavy, curly)
Straight - round shaft, straight follicle
Wavy- oval shaft, slightly tilted follicle
Curly- flat shaft, angled follicle
Where lamellar bodies are released
Stratum granulosum
Name two places eccrine glands are abundant
Palms, soles, forehead
Explain how the skin forms a physical barrier, chemical barrier, and biological barrier
Physical- protect against abrasion, substances, waterproof
Chemical- acid mantle kills bad bacteria, melanin and UV rays
Biological- langerhans cells ingest foreign invaders