1.
cut: skin
2.
cutaneous membrane: skin, composed of epidermis, dermis, and subcutaneous layer
3.
cyanosis: blood oxygen concentration is low, hemoglobin is dark red, and the skin appears bluish
4.
derm: skin
5.
dermis: binds the epidermis to underlying tissues, composed largely of dense CT that includes tough collagenous and elastic fibers within a gel like ground substance. Networks of these fibers give the skin toughness and elasticity. blood vessels supply nutrients to all skin cells. thes help regulate body temp. Nerve fibers are scattered throughout, contains hair follicles, sebaceous (oil producing) glands, and sweat glands.
6.
dermis: thicker than epidermis, contains connective tissue consisting of collagenous and elastic fibers, epithelial tissue, smooth muscle tissue, nervous tissue, and blood. Basement membrane is anchored to the dermis, separating the 2 skin layers
7.
epi: upon
8.
epidermis: outer layer, composed of stratified squamous epithelium, lacks blood vessels, protective functions, shielding moist underlying tissues against excessive water loss, mechanical injury and the effects of harmful chemicals. also keeps out disease causing microorganisms
9.
follic: small bag
10.
hemoglobin: blood pigment
11.
kerat: horn
12.
Keratinization: cytoplasm fills with strands of tough fibrous, waterproof keratin protein, resulting inmany layers of tough dead cells in the outer epidermis, forming statum corneum
13.
Keratinocytes: harden in a process called keratinization
14.
melan: black
15.
melanin: specialized cells in the epidermis, produced by melanocytes, a dark pigment that provides skin color. absorbs light energy and helps protect still deeper cells from UV radiation in the sunlight.
16.
Melanocytes: lie in the deepest portion of the epidermis, and underlying of connective tissue ofdermis. long pigment containing cellular extensions that pass upward between epidermal cells. extensions transfer melanin granules into these other cells by cytocrine secretion.
17.
Motor fibers: carry impulses out from the brain or spinal cord to dermal muscles and glands.
18.
mucous membrane: line cavities and tubes that open to outside of body, ie: nasal and oral cavities and the tubes of digestive, respiratory, urinary and reproductive systems. Consists of epithelum overlying a layer of loose connective tissue. specialized cells within, secrete mucus
19.
seb: grease
20.
Sensory fibers: carry impulses away from specialized sensory receptors, such as touch receptors located within the dermis into the brain or spinal cord.
21.
serous membrane: line body cavities that don't open to outside. ie: thorax (parietal pleura), abdomen (parietal peritoneum), and cover organs within these cavities (visceral pleura and visceral peritoneum) consists of a layer of simple squamous epithelium
22.
stratum basale: close to dermis and is nourished by dermal blood vessels. Cells of this layer divide and grow and the older cells are pushed away from dermis to the surface. THe farther they move, the less nutrience they receive, and they die
23.
stratum corneum: layers of tough dead cells in the outer epidermis
24.
subcutaneous layer: loose connective and adipose tissue bind the skin to the underlying oragans
25.
subcutaneous layer (hyperdermis): inner layer, beneath dermis, consists of loose connective and adipose tissues, collagenous and elastic fibers of this layer are continous with the dermis, most run parallel to the surface of the skin, extending in all directions. Resulting in no sharp boundary separations from dermis and subcutaneous layer. Adipose tissue of subcutaneous layer insulates, helping conserve body heart and impeding the entrance of heat from the outside
26.
synovial membrane: form inner linings of the joint cavities between the ends of bones at freely movable joints(synovial joints) these membranes usually include dense connective tissue and adipose tissue. Secrete a thick colorless synovial fluid into the joint cavity, which lubricates the ends of the bones within the joint
