Term
| Compare and contrast epithelial and connective tissues. |
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Definition
| Epithelia line all of the cavities and free surfaces of the body. The connective tissues are characterized by cells that produce and maintain a wide variety of extracellular material around themselves. |
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Term
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Definition
| a layer of material which serves as a selective barrier |
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Term
| What are the three epithelial membranes and their purposes? |
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Definition
| Squamous cells have the appearance of thin, flat plates. They fit closely together in tissues; providing a smooth, low-friction surface over which fluids can move easily. Cuboidal epithelium is commonly found in secretive or absorptive tissue: for example the (secretive) exocrine gland the pancreas and the (absorptive) lining of the kidney tubules as well as in the ducts of the glands. Columnar epithelium forms the lining of the stomach and intestines. |
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Term
| What is the only membrane formed of connective tissue and where is it found? |
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Definition
| peritoneum,lining of the abdominal cavity |
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Term
| What do all membranes have in common? |
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Definition
| They all encase something |
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Term
| What are the main serous membranes? |
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Definition
| Ventral and Dorsal cavities |
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Term
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Definition
| Acne is a disease that involves the oil glands of the skin. |
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Term
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Definition
| sebaceous glands clogged by dead skin cells |
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Term
| What does not cause acne? |
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Definition
| chocolate, stress, caffeine, greasy food, and dirty skin |
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Term
| Name the 4 basic acne medications and their functions. |
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Definition
| Salicylic Acid, benzoyl peroxide, sulfur, and acutane |
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Term
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Definition
| A bluish discoloration of the skin. |
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Term
| How do people get bedsores? How can they be prevented? |
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Definition
| Cells being pinched off from bloodflow because of lack of movement, physical activity and regular movement |
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Term
| What is the job of the hypodermis? |
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Definition
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Term
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Definition
| adrenaline stimulating arrector pili |
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Term
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Definition
| a separation between the dermis and epidermis |
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Term
| Why do old people get wrinkles? |
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Definition
| they produce less collagen and their skin sags |
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Term
| What are the 2 types of sweat glands? Compare and contrast them. |
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Definition
| Apocrine sweat glands are larger, have different mechanism of secretion, and are limited to axilla (armpits) and perianal areas in humans. Eccrine sweat glands are found only in primates and reach their greatest development in humans. |
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Term
| What is found in the dermis? |
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Definition
| It contains the hair follicles, sweat glands, sebaceous glands, apocrine and eccrine glands, and blood vessels. |
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Term
| What are the cutaneous glands and their functions? |
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Definition
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Term
| Where does leather come from? |
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Definition
| durable and flexible material created via the tanning of putrescible animal rawhide and skin, primarily cattlehide. |
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Term
| Why do some people have straight hair and others have curly hair? |
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Definition
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Term
| What are the parts of the hair follicle? |
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Definition
| root, shaft, sebaceous gland, and arrector pili |
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Term
| What are the appendages of the skin? |
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Definition
| sebaceous glands and hair |
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Term
| Why is the epidermis vascular? |
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Definition
| because it is nourished by diffusion from the dermis, and contains keratinocytes, melanocytes, Langerhans cells, Merkel cells,[1] and inflammatory cells. |
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Term
| What is the function of a keratinocyte? Melanocite? |
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Definition
| The primary function of keratinocytes is the formation of a barrier against environmental damage such as pathogens (bacteria, fungi, parasites, viruses), heat, UV radiation and water loss; make melanin |
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Term
| Why are some people darker than others? |
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Definition
| their bodies create mor melanin than others |
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Term
| What are the 3 layers of the skin and what are their functions? |
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Definition
| The epidermis contains no blood vessels, and cells in the deepest layers are nourished by diffusion from blood capillaries extending to the upper layers of the dermis. The dermis is the layer of skin beneath the epidermis that consists of connective tissue and cushions the body from stress and strain. The hypodermis is not part of the skin, and lies below the dermis. Its purpose is to attach the skin to underlying bone and muscle as well as supplying it with blood vessels and nerves |
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Term
| What is the jobs of the skin? |
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Definition
1.) To form a protective layer over the body to help prevent viruses, germs, bacteria, and disease.
2.) To keep moisture, or water, in the body.
3.) To make new skin.
4.) To regulate body temperature.
5.) To excrete sebum and sweat. |
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Term
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Definition
| bluish discoloration of the skin |
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Term
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Definition
| Yellowish discoloration of the skin |
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Term
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Definition
| A solid swelling of clotted blood within the tissues |
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Term
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Definition
| The partial or complete absence of hair from areas of the body where it normally grows; baldness. |
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Term
| How do smoking and sun exposure affect the epidermis? |
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Definition
| cause premature aging, discolorations, and damage |
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