Integumentary System 1
The layer of the skin that contains nerves, blood vessels, sweat glands ...
Dermis
The superficial layer of the skin.
Epidermis
The cells that produce melanin and the cancer formed from these cells.
Melanocytes
melanoma
Which type of burn is classified as a mild sunburn?
First degree burn
The 5 layers of the epidermis are the .... (stratum___________ x5)
1. Stratum corneum
2. Stratum Lucidum
3. Stratum Granulosum
4. Stratum Spinosum
5. Stratum Basale
What are the 2 layers of the dermis? WHich is more deep and which is more superficial?
Papillary - superficial
Reticular - deep
The layer of connective tissue that connects skin to muscle and bone.
Hypodermis (subcutaneous layer)
The type of burn that causes the tissues and nerves to be completely damaged, resulting in no pain for the patient.
Third degree burns
The layer of the skin in which adipose tissue is found
Hypodermis/subcutaneous layer
Where does hair growth occur?
Hair follicle/root/bulb
The type of skin cancer that is very serious if not caught early.
Malignant melanoma
Define the ABCDEs of skin cancer
Asymmetry
borders (Irregular)
Color
Diameter (<or> than 6mm)
Evolution
This type of gland becomes active at puberty; responds to fear, emotions, and is the source of body odor.
Apocrine sweat glands
This type of gland is connected to hair follicle and keeps hair and skin moisturized.
Sebaceous (oil) gland
Name two mechanisms that helps keep our bodies from losing too much heat.
Goose bumps (shivering) and blood vessels constricting to reduce blood flow (vasoconstriction)
Name 3 risk factors for skin cancer
Genetics, light skin tone, excessive sun exposure, aging, exposure to certain chemicals
The type of receptor that allows us to sense pain.
Free nerve endings
Explain the difference between thick and thin skin and where thick skin is located on the body
Thick skin has an extra layer (stratum lucidum) and is located on the palms of your hands and the soles of your feet
What are the 5 functions of the skin?
1. Protective barrier
2. Temperature Regulation
3. Excretion (water maintenance)
4. Production of Vitamin D
5. Sensation (touch, heat, pain, etc)
What is keratin and in which layer of the epidermis do you find pre-keratin filaments?
A protein that makes up our hair, skin and nails; provides protection and structure.
Stratum spinosum
name two mechanisms that help regulate body temperature so we do not overheat.
Sweat and blood vessels dilate releasing heat.
A chronic skin condition that causes flaky, silver-white patches called scales on the skin. Not curable, but symptoms can be relieved through medications and moisture.
Psoriasis
list the 5 functions of the integumentary system
Protection, temperature maintenance, synthesis/storage of nutrients, sensory reception, excretion/secretion and absorption
The type of glands that respond to increases in body temperature and do not produce body odor.
Eccrine glands
What structure is responsible for providing unique fingerprints and serves as the boundary between what?
Dermal papillae (papillary ridges)
boundary between epidermis and dermis