Term
| Name the 2 major components of the integumentary system |
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Definition
| Cutaneous membrane (skin) & accessory structures |
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Term
| Name the components of the cutaneous membrane |
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Definition
| Epidermis (superficial epithelium) & the dermis |
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Term
| Name the 3 accessory structures of the integumentary system |
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Definition
| Hair, nails, & multi-cellular exocrine glands |
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Term
| What are the other 2 names for superficial fascia? |
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Definition
| Hypodermis & subcutaneous layer |
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Term
| How many layers of keratinocytes does thin skin have? |
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Definition
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Term
| How many layers of keratinocytes does thick skin have? |
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Definition
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Term
| Name the 5 layers of the epidermis |
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Definition
| Stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, & stratum germinativum |
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Term
| Name the epidermal layer that is water resistant, not water proof. This layer covers all exposed skin, excluding the anterior surface of the eyes. |
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Definition
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Term
| How much water do humans lose per day through the process of insensible perspiration? |
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Definition
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Term
| Name the stratum where large amounts of keratin & keratohyalin are produced. At this level, cells have stopped dividing. |
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Definition
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Term
| Name the stratum that contains large basal cells. This stratum formes epidermal ridges that connect to the dermal papillae. |
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Definition
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Term
| Name the stratum that houses melanocytes & Merkle cells |
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Definition
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Term
| Name the function that Merkle cells serve |
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Definition
| Release chemicals that stimulate sensory nerve endings |
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Term
| Name what accounts for skin color |
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Definition
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Term
| What makes an individual an albino? |
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Definition
| Misfirings in melanocytes (have melanocytes, but they do not produce melanin) |
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Term
| Name the thick, clear stratum which covers the stratum granulosum. It is also called thick skin. |
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Definition
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Term
| Name two areas of the body where thick skin is found |
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Definition
| Palms of the hands & soles of the feet |
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Term
| Name the dense granules of the cytoplasm that promote dehydration of the cell |
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Definition
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Term
| Name the component of the cutaneous membrane which contains the capillaries & sensory neurons that supply the skin's surface |
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Definition
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Term
| Name the tissue that comprises the papillary layer |
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Definition
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Term
| Name the layer of skin that is interwoven with the connective tissue fibers of the reticular layer |
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Definition
| Hypodermis (subcutaneous) |
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Term
| Name the component that is comprised of hair, nails, and the exocrine glands |
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Definition
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Term
| What is the name of hte outer layer of the hair shaft? |
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Definition
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Term
| Name the two types of sweat glands located in teh integumentary system |
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Definition
| Apocrine & Merocrine (Eccrine) |
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Term
| Name the sebaceous gland that discharges a waxy, oily secretion into the hair follicles |
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Definition
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Term
| Name the type of sweat glands that located in the armpits, groin, & mammary glands; this type of sweat gland begins secreting at puberty & provides a nutrient source for bacteria |
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Definition
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Term
| Name the sweat glands also called the eccrine glands. They are found throughout the body, especially concentrated in the palms of the hands & soles of the feet. These are also responsible for sensible perspiration. |
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Definition
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Term
| Name the 2 parts of the body that have the most eccrine sweat glands |
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Definition
| Palms of the hands & soles of the feet |
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Term
| What is the pH of sensible perspiration? |
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Definition
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Term
| Name 2 functions of the merocrine sweat glands |
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Definition
| Cools the surface of the skin to reduce body temperature, provides protection from environmental hazards, & excretes water & electrolytes |
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Term
| Name the type of perspiration in which an individual loses approximately 500 ml a day |
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Definition
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Term
| Name the sweat glands that the mammary glands are classified under |
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Definition
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Term
| Name the sweat glands found in the external auditory canal |
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Definition
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Term
| Name the 2 layers that are found in the hair that are comprised of hard, keratin cells. These 2 layers are responsible for hair's stiffness. |
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Definition
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Term
| Name the core layer of hair which contains felxible, soft keratin |
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Definition
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Term
| Name the deepest part of the hair follicle which is responsible for hair production |
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Definition
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Term
| Name the cell responsible for variation in hair color |
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Definition
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Term
| Name the part of the nail that is the visible portion |
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Definition
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Term
| Name the part of the nail that the visible portion covers |
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Definition
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Term
| Name the part of the nail where nail production occurs |
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Definition
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Term
| Name the numbered step of injury & repair when bleeding & inflammation occurs |
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Definition
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Term
| Name the numbered step of injury & repair when a clot or scab forms. This occurrence limits the invasion of more microorganisms |
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Definition
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Term
| Name the numbered step of injury & repair when fibroblast activity leads to the appearance of collagen fibers & ground substance |
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Definition
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Term
| Name the numbered step of injury & repair when there is the formation of inflexible, fibrous scar tissue |
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Definition
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Term
| Name 6 effects that the aging process has on the integumentary system |
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Definition
| Epidermis thins as germinative cell activity declines; # of dendritic (Langerhans) cells decreases (about 50% of maturity; decrease in immunity); Vitamin D3 production declines by about 75%; melanocyte activity declines (more sensitivity to sun exposure); glandular activity declines (dry & scaly); blood supply to the dermis is reduced (person feels cooler) |
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