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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 |