Integumentary Vocab

Question 1

Body membranes

Answer 1

Cover surfaces, line body cavities, and form protective sheets around organs.

Question 2

Epithelial membrane

Answer 2

include the cutaneous membrane (skin), the mucous membranes, and the serous membranes; also called covering and lining membranes.

Question 3

Cutaneous membrane

Answer 3

Skin.

Question 4

Mucous membrane

Answer 4

composed of epithelium resting on a loose connective tissue membrane called a lamina propria.

Question 5

Serous membrane

Answer 5

Line the body cavaties that are closed to the exterior; composed of a layer of simple squamous epithelium.

Question 6

Serous fluid

Answer 6

The serous membranes are separated by this scanty amount of thin, clear fluid; it allows the organs to slide easily across the cavity walls and one another without friction.

Question 7

Peritoneum

Answer 7

The serosa lining the abdominal cavity and covering its organs.

Question 8

Pleura

Answer 8

Serous membrane that surrounds the lungs.

Question 9

Pericardium

Answer 9

Serous membrane that’s around the heart.

Question 10

Synovial Membrane

Answer 10

These membranes line the fibrous capsules surrounding joints where they provide a smooth surface and secrete a lubricating fluid.

Question 11

Skin

Answer 11

called cutaneous membrane; function is to protect your body.

Question 12

Integument

Answer 12

means “covering”; skin.

Question 13

Keratin

Answer 13

In the uppermost layer of skin; cornified or hardened, in order to prevent water loss from the body surface.

Question 14

Epidermis

Answer 14

Made up of stratified squamous epithelium that is capable of becoming hard and tough.

Question 15

Dermis

Answer 15

Mostly made up of dense connective tissue. Firmly connected to the epidermis.

Question 16

Subcutaneous Tissue

Answer 16

or “hypodermis”; essentially adipose tissue. Not considered part of the skin but it does anchor the skin to underlying organs.

Question 17

Stratum Basale

Answer 17

deepest cell layer of the epidermis; lies closest to the dermis and contains epidermal cells that receive nourishment via diffusion of nutrients from the dermis.

Question 18

Stratum Spinosum

Answer 18

a layer of the epidermis found between the stratum granulosum and stratum basale.

Question 19

Stratum Granulosum

Answer 19

a thin layer of cells in the epidermis.

Question 20

Stratum Lucidum

Answer 20

When the stratum spinosum and the stratum granulosum become flatter, full with keratine, and finally die; it occurs where the skin is hairless and extra thick; palms and soles of feet.

Question 21

Stratum Corneum

Answer 21

outermost layer; 20 to 30 cells thick; accounts for about 3/4 of the epidermal thickness.

Question 22

Melanin

Answer 22

a pigment that ranges in color from yellow to brown to black; produced by special cells called melanocytes.

Question 23

Papillary Layer

Answer 23

the upper dermal region.

Question 24

Dermal Papillae

Answer 24

Finger-like projections from its superior surface.

Question 25

Reticular Layer

Answer 25

the deepest skin layer.

Question 26

Exocrine glands

Answer 26

release their secretions to the skin surface via ducts.

Question 27

Sebaceous glands

Answer 27

found all over the skin, except on palms and soles of feet.

Question 28

Sebum

Answer 28

mixture of oily substances and fragmented cells.

Question 29

Eccrine glands

Answer 29

produce sweat.

Question 30

Apocrine glands

Answer 30

confined to the axillary and genital areas of the body.

Question 31

Hair follicles

Answer 31

compound structures

Question 32

Arrector pili

Answer 32

connect each side of the fair follicle to the dermal tissue.

Question 33

Athlete's foot

Answer 33

an itchy, red, peeling condition of the skin between the toes, resulting from fungus infection. Also called tinea pedis

Question 34

Boils and carbuncles

Answer 34

Inflammation of hair follicles and sebaceous glands, common on the dorsal neck. Carbuncles are composite coils typically caused by bacterial infection.

Question 35

Cold sores

Answer 35

small fluid-filled blisters that itch and sting,caused by a heroes simplex infection. The virus localized in a cutaneous nerve, where it remains dormant until activated by emotional upset, fever, or UV radiation.

Question 36

Contact dermatitis

Answer 36

itching, redness, and swelling of the skin, progressing to blistering. Caused by exposure of the skin to chemicals (like poison ivy) 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.

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.