Quiz 3 A&P Lab

single layer of very flat, scale-like cells

~lines the tiny airsacs of the lungs known as the alveoli & in kidneys in a structure known as glomerulus

composed of a single layer of "square" cells

~form the ducts of many glands, the entire structure of the thyroid gland, most of the tubular system in the kidneys

composed of a single layer of "rectangular" cells

~lining of the digestive system

hair-like structures that etend from the surface of a cell

tiny fan-folds of the plasma membrane of the cell

single-celled mucus producing glands, used to lubricate and protect

tends to have a variety of cells in this tissue of different shapes and sizes

~forms the lining of large airways (trachea & bronchi)

composed of multiple layers of cells

~mouth, urethra, vagina, anus

multi-layered epithelium, composed of several layers of large round cells and is found only in the urinary bladder and the tubing associated with the bladder

very common tissue, located beneath nearly every epithelium, collagen and elastic fibers are the most common type of fibers

commonly referred to as fat, forms protective cushions around certain organs and structures

huge numbers of collagen fibers in the matrix

only type of tissue that is avascular (lacks direct blood supply)

this type of tissue is composed of small bone units called...

at the center of each of osteon is a tunnel called the...

this tunnel connects the blood vessels from adjacent osteons

concentric rings of bony matrix, composed of collagen fibers and calcium salt crystals

bone cells

each of the osteocytes lives inside a small space known as...

tiny tunnels radiationg out of the individual lacuna

small spaces between the osteons are fulled with small bony matrix sheets

small spikes of bony matrix

the most superficial layer of the skin

all cells of the epidermis form in this...

cells are beginning to form keratin, are also beginning to die due to lack of nutrients because they are so far from their nutrient source

contains dead, keratinized cells, sheds cells into the enviroment

layer not found in the hairy skin

cells attach to one another using desmosomes

produce a yellow-brown pigment known as melanin (main causes of variations in skin color)

found just below the stratum basale of the epidermis, helps to provide nutrients to the epidermis, holds the layers of the skin together, and contributes to the formation of fingerprints

light touch nerve receptors

irregularly arranged dense collagenous connective tissue, hair folicles and glands are found primarily in this region

deep pressure nerve receptors are found in the deeper part of this layer, near the subcutaneous, numerous other nerve endings associated with the skin

composed of primarily adipose tissue

composed of epidermal tissue that dips down into the dermal layers

found at the deepest end of the hair follicle is responsible for producing the hair

a small muscle that attaches to the side of the hair follicle, reaction to cold or hot as an example of purpose of this

produce sweat

produce earwax

produce oily secretion

produce milk