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Unit 2 Chapter 6
The Integumentary System
| Question | Answer |
|---|---|
| Name the branch of medicine that deals with the integumentary system. | Dermatology |
| The system that consists of the skin and its accessory organs is the __________ system | Integumentary |
| Thermoregulation, sensory reception, vitamin D production and protection are all functions of the ______ | Integumentary system |
| The dermis consists of connective tissue, with ________________ as the most common fiber type within the layer. | collagen fiber |
| Where is the hypodermis located? | Beneath the dermis |
| Skin, hair, nails, and their associated glands make up the Blank______ system. | integumentary |
| Which compound is the primary determinant of skin color? | Melanin |
| Which term refers to the markings on the fingertips that leave distinctive oily fingerprints on surfaces we touch? | Friction ridges |
| Which of the following are accessory organs (appendages) of skin? | Hair, nails and cutaneous glands |
| In which areas of the body is the dermis the thickest? | Palms and soles |
| The portion of hair above the skin is called the Blank______. | shaft |
| The layer immediately beneath the skin is the | Hypodermis |
| Fingernails and toenails are derivatives of which epidermal layer? | Stratum corneum |
| factors in determining whether individuals have darker or lighter skin? | In darker skin, the melanocytes produce more melanin. In darker skin, the melanin breaks down more slowly. |
| Which structures enhance sensitivity to texture by vibrating and stimulating lamellar corpuscles in the skin when the fingertips stroke an uneven surface? | Friction ridges |
| Apocrine glands are concentrated in which areas of the body? | Groin and anal region Beard area (males only) Axillary region areola |
| Cutaneous glands are considered Blank______. | accessory organs of skin |
| Sebaceous glands product a(n) Blank______ substance called Blank______. | oily; sebum |
| The part of the hair enclosed in the follicle is known as the hair ______ | Root |
| Fingernails and toenails are hard derivatives of the stratum __________of the epidermis. | Corneum |
| Glands that secrete a substance that combines with sebum to keep the eardrum protected and prevent foreign particles from entering the canal are called ________ glands | ceruminous glands |
| Unlike sweat glands and ceruminous glands, which of the following is true about mammary glands? | They are usually active only in pregnant and lactating females. |
| Mammary glands are | -modified apocrine sweat glands, not sebaceous glands. -Mammary glands are modified apocrine sweat glands and associated with the skin. |
| The ducts of apocrine sweat glands open Blank______. | into nearby hair follicles |
| Sebaceous glands produce | oily secretion called sebum |
| Lilly goes to the beach 3 times a week to tan. She develops a lesion on her scalp and ears that later form concave ulcers with raised edges. Lilly most likely has which of the following? | Squamous cell carcinoma |
| Partial-thickness burns are also called Blank______ degree burns. | second |
| Which of the following best describes the function ceruminous gland secretions? | They waterproof the ear canal, and coat the guard hairs of the ear. |
| Mammary glands are modified versions of which type of gland? | Apocrine |
| Which statements about apocrine sweat glands are true? They produce sweat that contains fatty acids. They occur in the groin, anal region, axilla, areola, and beard area. They use the apocrine mode of secretion. | They produce sweat that contains fatty acids. They occur in the groin, anal region, axilla, areola, and beard area. '. Although they are called "apocrine glands," they release their product via exocytosis, the same as merocrine sweat glands do. |
| Most skin cancer is caused by UV sun radiation which damages DNA. T OR F | TRUEE This statement is true because when DNA is damaged, it disables tumor-suppressor genes. |
| First degree, second degree and third degree are all commonly used classifications of | Burn severity |
| Glands that secrete a substance that combines with sebum to keep the eardrum protected and prevent foreign particles from entering the canal are called ________ glands | ceruminous |
| First degree burn: | Only the epidermis is involved. There is redness, edema, and pain. |
| Second degree burn: | The epidermis and part of the dermis is involved. There are usually blisters. |
| Third degree burn: | The epidermis, entire dermis, and often some deeper tissues are involved. This type of burn often requires a skin graft. |
| Cells of fingernails are Blank______. | thin and dead |
| Most tumors occur where exposure to the sun is greatest. These areas would include | Head, neck, and hands |
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