The flashcards below were created by user
hdemeter01
on FreezingBlue Flashcards.
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pseudostratified columnar
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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
simple squamous epithelium
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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
simple cuboidal epithelium
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composed of a single layer of "rectangular" cells
~lining of the digestive system
simple columnar epithelium
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hair-like structures that etend from the surface of a cell
cilia
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tiny fan-folds of the plasma membrane of the cell
microvilli
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single-celled mucus producing glands, used to lubricate and protect
goblet cells
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tends to have a variety of cells in this tissue of different shapes and sizes
~forms the lining of large airways (trachea & bronchi)
pseudostratified columnar epithelium
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composed of multiple layers of cells
~mouth, urethra, vagina, anus
stratified squamous epithelium
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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
transitional epithelium
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areolar connective tissue
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adispose connective tissue
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regularly arranged dense collagenous connective tissue
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reticular connective tissue
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very common tissue, located beneath nearly every epithelium, collagen and elastic fibers are the most common type of fibers
areolar connective tissue
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commonly referred to as fat, forms protective cushions around certain organs and structures
adipose connective tissue
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huge numbers of collagen fibers in the matrix
dense collagenous connective tissue
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only type of tissue that is avascular (lacks direct blood supply)
cartilage
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this type of tissue is composed of small bone units called...
osteons
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at the center of each of osteon is a tunnel called the...
haversian canal
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this tunnel connects the blood vessels from adjacent osteons
volkmann's canal
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concentric rings of bony matrix, composed of collagen fibers and calcium salt crystals
lamellae
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each of the osteocytes lives inside a small space known as...
lacunae
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tiny tunnels radiationg out of the individual lacuna
canaliculi
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small spaces between the osteons are fulled with small bony matrix sheets
interstitial lamellae
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small spikes of bony matrix
trabeculae
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the most superficial layer of the skin
epidermis
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all cells of the epidermis form in this...
stratum basale
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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
stratum granulosum
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contains dead, keratinized cells, sheds cells into the enviroment
stratum corneum
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layer not found in the hairy skin
stratum lucidum
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cells attach to one another using desmosomes
stratum spinosum
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produce a yellow-brown pigment known as melanin (main causes of variations in skin color)
melanocytes
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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
papillary region
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light touch nerve receptors
Meissner's corpuscles
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irregularly arranged dense collagenous connective tissue, hair folicles and glands are found primarily in this region
reticular region
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deep pressure nerve receptors are found in the deeper part of this layer, near the subcutaneous, numerous other nerve endings associated with the skin
pacinian corpuscles
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composed of primarily adipose tissue
subcutaneous layer (hypodermis)
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composed of epidermal tissue that dips down into the dermal layers
hair follicle
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found at the deepest end of the hair follicle is responsible for producing the hair
hair bulb
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a small muscle that attaches to the side of the hair follicle, reaction to cold or hot as an example of purpose of this
arrector pili muscle
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produce sweat
sudoriferous glands
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produce earwax
ceruminous glands
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produce oily secretion
sebaceous glands
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produce milk
mammary glands
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