Chapter 6 Flashcards
a. outer layer of skin
b. stratified squamous epithelium
c. lacks blood vessels; obtains nutrients through diffusion
d. in 4-5 layers
epidermis
a. masses of loose connective and adipose tissues that bind skin to underlying organs
subcutaneous layer (hypodermis)
a. inner layer
b. thicker than epidermis
c. contains connective tissue of collagenous and elastic fibers, epithelial tissue, smooth muscle tissue, nervous tissue, and blood
dermis
a. outer layer
b. composed of stratified squamous epithelium
epidermis
what
-regulates temperature
-protects underlying tissues
-prevents water loss
- senses environmental change
-houses cells of the immune system
homeostasis - skin is responsible
more commonly called the skin
cutaneous membrane
a. forms inner linings of joint cavities between ends of freely movable joints
b. cells w/in membranes secrete thick colorless synovial fluid into the joint cavity to lubricate ends of bones within joints
synovial membranes
a. lines cavities and tubes that open to the outside body
b. contains specialized cells within the membrane that secretes mucous
c. found in the oral and nasal cavities, tubes of digestive, respiratory, urinary, and reproductive systems
mucous membranes
a. lines body cavities that lack openings to the outside
b. forms the inner linings of the thorax (parietal pleura) and the abdomen (parietal peritoneum)
c. cells secrete watery serous fluid to lubricate linings.
serous membranes
basement membrane anchors…
the epidermis and dermis
serous, mucous, synovial, cutaneous are all what?
4 main types of membranes
what makes up the integumentary organ system?
the skin and its accessory organs
body structures composed of two or more different tissues is called what?
organs
what is only found in the thickest skin and is the 2nd layer of epidermis?
stratum lucidum
what is the keratinized layer (dead cells); oldest layer of cells, and the 1st layer of epidermis?
Stratum corneum
