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Skin and Body Membranes
N/A
33
Anatomy
11th Grade
10/26/2011

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Cards

Term
Compare and contrast epithelial and connective tissues.
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.
Term
What is a membrane?
Definition
a layer of material which serves as a selective barrier
Term
What are the three epithelial membranes and their purposes?
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.
Term
What is the only membrane formed of connective tissue and where is it found?
Definition
peritoneum,lining of the abdominal cavity
Term
What do all membranes have in common?
Definition
They all encase something
Term
What are the main serous membranes?
Definition
Ventral and Dorsal cavities
Term
What is acne?
Definition
Acne is a disease that involves the oil glands of the skin.
Term
What causes acne?
Definition
sebaceous glands clogged by dead skin cells
Term
What does not cause acne?
Definition
chocolate, stress, caffeine, greasy food, and dirty skin
Term
Name the 4 basic acne medications and their functions.
Definition
Salicylic Acid, benzoyl peroxide, sulfur, and acutane
Term
What is Cyanosis?
Definition
A bluish discoloration of the skin.
Term
How do people get bedsores? How can they be prevented?
Definition
Cells being pinched off from bloodflow because of lack of movement, physical activity and regular movement
Term
What is the job of the hypodermis?
Definition
insulation
Term
What causes goosebumps?
Definition
adrenaline stimulating arrector pili
Term
What is a blister?
Definition
a separation between the dermis and epidermis
Term
Why do old people get wrinkles?
Definition
they produce less collagen and their skin sags
Term
What are the 2 types of sweat glands? Compare and contrast them.
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.
Term
What is found in the dermis?
Definition
It contains the hair follicles, sweat glands, sebaceous glands, apocrine and eccrine glands, and blood vessels.
Term
What are the cutaneous glands and their functions?
Definition
mucous producin glands
Term
Where does leather come from?
Definition
durable and flexible material created via the tanning of putrescible animal rawhide and skin, primarily cattlehide.
Term
Why do some people have straight hair and others have curly hair?
Definition
hair shape
Term
What are the parts of the hair follicle?
Definition
root, shaft, sebaceous gland, and arrector pili
Term
What are the appendages of the skin?
Definition
sebaceous glands and hair
Term
Why is the epidermis vascular?
Definition
because it is nourished by diffusion from the dermis, and contains keratinocytes, melanocytes, Langerhans cells, Merkel cells,[1] and inflammatory cells.
Term
What is the function of a keratinocyte? Melanocite?
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
Term
Why are some people darker than others?
Definition
their bodies create mor melanin than others
Term
What are the 3 layers of the skin and what are their functions?
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
Term
What is the jobs of the skin?
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.
Term
What is Cyanosis?
Definition
bluish discoloration of the skin
Term
What is Jaundice?
Definition
Yellowish discoloration of the skin
Term
What is Hematoma?
Definition
A solid swelling of clotted blood within the tissues
Term
What is Alopecia?
Definition
The partial or complete absence of hair from areas of the body where it normally grows; baldness.
Term
How do smoking and sun exposure affect the epidermis?
Definition
cause premature aging, discolorations, and damage
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