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Integumentary system
Question | Answer |
---|---|
What are the most common cell type in the epidermis | Keratinocytes |
What is melanin | Pigment that absorbs UV radiation from sunlight |
What does melanin prevent | Radiation from harming structures in the skins underlying layers |
What happen to the dermal blood vessels when a person is hot | They dilate, carrying body heat to the body’s surface where it can escape |
What happens to the dermal vessels when cold | Construct to prevent the heat in the blood from escaping |
What is the most complex layer of skin | Dermis |
What does the dermis contain | Major tissues types including the epithelial, connective , muscle, and nervous tissue. |
Where are sweat glands located | The dermis |
What skin cancer accounts for 90% in the United states | Basal cell carcinoma |
What arise from flat cells of the epidermis | Squamous cell carcinomas |
How many stages does melanoma have? | 5 |
What herpes simplex type is caused by virus | Types 1 and 2 |
Partial-thickness or second degree burn involves what? | Epidermis and the dermis |
What is a second degree characterized by | Redness,swelling,pain, and blisters but does not affect the muscles or bones |
What are apocine glands activated by? | Nervousness, pain l, or stress, although can be by heat |
What are scabies | Notes that burrow beneath the skin and lay eggs |
What is psoriasis | Most likely an inherited autoimmune disorder |
What causes pediculosis | Parasitic lice |
What three forms does pediculosis come in | Head lice, body lice, and pubic lice |
A person with skin that is pinkish or has a rosy hue to it. | Rich supply of oxygenated blood |
What promotes healing and why | Inflammation because more blood travels to the area and the extra blood carries more nutrients and defensive cells to clear up the cause of inflammation |