Epidermis
The epidermis is avascular: what does this mean?
Does not contain blood vessels
What are the names of the two layers making up the dermal layer of the skin?
Papillary and Reticular
Sudoriferous glands secrete _____ and sebaceous glands secrete _____ .
sweat; sebum (oil)
Red, swollen epidermis resulting in overexposure to UV radtiation
Sunburn
Patient 0 pressed her forearm against a still hot stove; the affected area was red and swollen and covered less than 10% of the patient's body. What degree and severity of burn is this?
First degree, minor
What protein is produced in the epidermis that keeps the skin tough, scaly, and water-resistant?
Keratin
Where are two areas of the body where the dermis is the thickest?
Palms of hands and soles of feet
What are nails made of?
Hardened sheets of keratin
Least malignant, most common type of skin cancer
Basal cell carcinoma
Patient 1 deals with a chemical burn over 15% of their skin surface area; the affected area immediately begins to lose feeling and turn black. What degree and severity of burn is this?
Third degree, severe
What pigment is produced in the epidermis that determines a persons skin tone?
Melanin
The dermis sits on top of an underlying layer called the hypodermis, consisting of what kind of tissue/cells?
Adipose (fat)
What is the function of arrector pilli muscles?
When they contract, hair is straightened to stand on end
Once cancer has spread from its original source to other locations throughout the body, it is known as ____ .
Malignant
Patient 2 was burnt by an electrical cord on a jobsite. The skin is red, swollen, and beginning the blister on about 8% of the patients skin surface area. What degree and severity of burn is this?
Second degree, minor
A burn only affecting the epidermis is known as which degree of burn?
First degree
What is the function of the dermal papillae?
Tiny projections that anchor the epidermis and dermis together
Most sebaceous glands empty into _____ _______ .
Hair follicles
Warts, cold sores, and boils can occur as a result of either_____ or _____ infections.
Bacterial or viral
Patient 3 dropped a pot of boiling water, covering about 26% of her lower body in red, blistered burns. What degree and severity of burn is this?
What is the main function of melanin?
To absorb/protect the deeper layer of skin from UV radiation
Name three components of the reticular layer of the dermis.
Blood vessels, sweat glands, oils glands, deep pressure receptors, phagocytes
Name the two kinds of glands that activate at puberty.
Apocrine and Sebaceous
What are the ABCDEs of Melanoma?
Asymmetry, Border, Color, Diameter, Evolving
Patient 4 suffered a burn destroying both her skin layers and the underlying hypodermis; the affected area is white, looking as if the patient is decaying and covers about 15% of the total skin surface area. What degree and severity of burn is this?
Third degree, severe