CHAPTER 4 Flashcards
Epithelial Tissue; function
forms boundaries between different environments, prtects, secretes absorbs, filters
Connective Tissue; function
supports, protects and binds other tissues together
Nervous Tissue; function
internal communication
Muscle Tissue; function
contracts to cause movement; attached to the bone
location of epithelial tissue
body surfaces, line internal cavities, forms glands
Classification of Epithelia
Simple/stratified and squamous/cuboidal/clumnar
Simple Squamous Tissue
Single layer, flattened clls, sparse cytoplasm
simple squamous tissue; function
diffusion and filtration, provide a slick/friction reducing lining
Simple Squamous Tissue; locations
kidney glameruli, lining of hear, blood vessels, lymphatic vessels
Simple Cuboidal
single layer, cube shaped, large/spherical central nuclei
Simple Cuboidal Tissue; function
Secrection and absorption
Simple Cuboidal Tissue; locations
kidney tubules, ducts and secretory portions of small glands and ovary surface
Simple Columnar
many contain cilia, column like
Simple columnar; Function
absorption and secretion
Simple columnar; ciliated vs non-ciliated
ciliated: line small bronchi, uterine tubes
non-ciliated: lining of digestive tract
Pseudostratified Columnar
single layer, cells of different heights, nuclei seen at different layers, may have cilia
Pseudostratified; Function
secreton and propulsion of mucus
Pseudostratified; location
trachea, male sperm carrying ducts
Stratified Squamous
This membrane, several layers, keratinized or non-keratinized
Stratified squamous; function
protection of underlying areas subject to abrasion
Stratified squamous; location
external part of skin epidermis, lining of esophagus
Transitional Tissue
several layers
basal cells- cuboidal
surface cells- dome shaped
Transitional Tissue; function
stretches to permits distension
Transitional Tissue: locations
lining of urinary bladder, uterers and part of the urethra
Gladular Epithelial Tissue
compose glands that make and secrete and aqueous fluid
Endocrine
internally secreting gland
exocrine
externally secreting gland
Endocrine Glands
ductless, hormone production,
secretions include aminino acids, proteins, glycoproteins and steroids directly into the blood
Exocrine Glands
more numerous, secrete substances into body cavities or onto body surfaces
Mucous, sweat, sebaceous, and salivary glands
Goblet Cells
individual cells that produce mucus
Fibers of Connective Tissues
collagen, elastic, reticular
Elastic fiber
formed from the protein elastin; gives a rubbery and resilient quality to the connective tissue
Collagen Fiber
most abundant fiber found in matrix of connective tissue
Connective Tissues
Bone, blood, cartilage
