integumentary vocab

Question 1

body membrane

Answer 1

cover surfaces, line body cavities and form protective sheets around organs

Question 2

epithelial membrane

Answer 2

called covering and lining membranes

include cutaneous membrane, mucous membranes and serous membranes

Question 3

cutaneous membrane

Answer 3

skin

Question 4

mucous membrane

Answer 4

lines all body cavities that open to the exterior, such as those of the hollow organs of the respiratory, digestive, urinary, and reproductive tracts

Question 5

serous membrane

Answer 5

occur in pairs

line body cavities that are closed to the exterior

Question 6

serous fluid

Answer 6

allows organs to slide easily across the cavity walls and one another w/out friction as they carry out their routine functions

Question 7

peritoneum

Answer 7

lining in abdominal cavity and covering its organs

Question 8

pleura

Answer 8

serous membrane that surrounds the lungs

Question 9

pericardium

Answer 9

serous membrane around the heart

Question 10

synovial membrane

Answer 10

line the fibrous capsules surrounding the joints

Question 11

skin

Answer 11

aka: cutaneous membrane

used for protection

Question 12

integument

Answer 12

means covering

keeps water and other molecules inside the body

Question 13

keratin

Answer 13

a tough, insoluble protein found in tissues such as hair, nails and epidermis of skin

Question 14

epidermis

Answer 14

outer part of the skin

Question 15

dermis

Answer 15

layer under epidermis

made of dense connective tissue

Question 16

subcutaneous tissue/hypodermis

Answer 16

not considered part of skin

anchors skin to underlying organs

Question 17

stratum basale

Answer 17

deepest cell layer of epidermis

Question 18

stratum spinosum

Answer 18

one of the layers superficial to the dermis

daughter cells get sent here

Question 19

stratum granulosum

Answer 19

daughter cells become flatter, increasingly full of keratin and die here

Question 20

stratum lucidum

Answer 20

occurs only where the skin is hairless and extra thick (palms of hands/soles of feet)

Question 21

stratum corneum

Answer 21

outermost layer

20-30 cell layers thick

Question 22

melanin

Answer 22

pigment that ranges in color from yellow to brown to black

Question 23

papillary layer

Answer 23

upper dermal region

Question 24

dermal papillae

Answer 24

the uneven, finger-like projections from superior surface

indent the epidermis

Question 25

reticular layer

Answer 25

deepest skin layer | contains blood vessels, sweat/oil glands, and deep pressure receptors

Question 26

exocrine glands

Answer 26

release secretions to skin surface

Question 27

sebaceous glands

Answer 27

oil glands | found all over skin except on palms of hands and soles of feet

Question 28

sebum

Answer 28

product of sebaceous glands mixture of oily substances and fragmented cells prevents hair from becoming brittle contain chemicals that kill bacteria

Question 29

eccrine glands

Answer 29

produce sweat and lactic acid

Question 30

apocrine glands

Answer 30

confined to axillary and genital areas of body ducts empty into hair follicles secretion contains fatty acids and proteins

Question 31

hair follicles

Answer 31

compound structures inner epidermal sheath is composed of epithelial tissue and forms the hair outer dermal sheath is dermal connective tissue

Question 32

arrector pili

Answer 32

small bands of smooth muscle cells

Question 33

athlete’s foot

Answer 33

itchy, red, peeling condition of the skin between toes, resulting from fungus infection

Question 34

boils and carbuncles

Answer 34

inflammation of hair follicles and sebaceous glands, common on dorsal neck carbuncles are composite boils typically caused by bacterial infection

Question 35

cold sores

Answer 35

small fluid-filled blisters that itch and sting, caused by herpes simplex infection virus localizes in cutaneous nerve, where it remains dormant until activated by emotional upset, fever, or UV radiation cold sores usually occur around the lips and in the oral mucosa of the mouth

Question 36

contact dermatits

Answer 36

itching, redness, and swelling of the skin, progressing to blistering caused by exposure of the skin to chemicals that provoke allergic responses in sensitive individuals

Question 37

impetigo

Answer 37

pink, water-filled, raised lesions that develop a yellow crust and eventually rupture caused by highly contagious staphylococcus infection; common in elementary school-aged children

Question 38

psoriasis

Answer 38

a chronic condition, characterized by overproduction of skin cells that results in reddened epidermal lesions covered with dry, silvery scales when severe may be disfiguring believed to be an autoimmune system attacks a person's own tissues attacks often triggered by trauma, infection, hormonal changes, and stress