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LCCW Summer 2015

Define Epithelium tissue composed of sheets of tightly bound cells that cover body surfaces, lines it's cavities and tubules, forms glands.
Function of Epithelium? protection, absorption, filtration, excretion, secretion, and sensory reception
What 2 Stains are mostly used in histology? (1) Hematoxylin - a BASIC dye that stains the acidic cell components (purple colored). (2) Eosin - an ACIDIC dye that stains the basic cell components (red-pink colored).
Define Endothelium: the layer of simple squamous epithelium that lines the cavities of the heart, vessels of the cardiovascular and lymphatic systems
Define Mesothelium: the layer of simple squamous epithelium that covers and lines cavities
Define Glandular Epithelium: Highly specialized epithelial cells that secrete substances into ducts, onto a surface, or into the blood
Define Merocrine Glands: The cell releases contents of secretory vesicles into lumen of duct (salivary glands, sweat glands, and pancreatic acinar glands)
Define Apocrine glands: the secretory products gather at the apical surface of the cell and are pinched off, along with some of the cytoplasm (mammary gland)
Define Holocrine Glands: the entire cell, along with its accumulated secretions, make up the secretory product
What are the 8 types of Epithelium? Simple Squamous, simple cuboidal, simple columnar, pseudostratified columnar, stratified squamous, stratified cuboidal, stratified columnar, transitional.
Location and function of SIMPLE SQUAMOUS? Location: Air sacs of the lungs, kidney glomeruli, lining of the hear, blood vessels and lymphatic vessles. Function: allows passage of materials by diffusion and filtration in sites where protetion is not important
Location and Function of SIMPLE CUBOIDAL? Location: kidney tubules, ducts and secretory portions of small glands, ovary surface. Function: secretion and absorption.
Location and Function of SIMPLE COLUMNAR? Location:(non-ciliated) lines most of the digestive tract - stomach and anal canal, gallbladder, and excretory ducts of some glands;(cilliated) lines small bronchi, uterine tubes, and some regions of the uterus.Function: Absorption, secretion of mucus etc
Location and Function of PSUDOSTRATIFIED COLUMNAR? Location: non-ciliated type in ducts of large glands, parts of male urethra; cilliated type lines the trachea, most of the upper resp. tract. Fuction: secretion, particularly of mucuss; propulsion of mucus by ciliary action
Location and Function of STRATIFIED SQUAMOUS? Location: non-keratinized type forms the moist linings of the esophagus, mouth, and vagina. Keratinized variety forms the epidermins of the skin. Function: Protects underlying tissues in areas subjected to abrasion
Location and Function of STRATIFIED CUBOIDAL? Location: largest ducts of sweat glands, mammary glands, and salivary glands. Function: protection.
Location and Function of STRATIFIED COLUMNAR? Location: rare in the body. small amounts in the male urethra and large ducts of some glands. Function: Protection, secretion
Location and Function of TRANSITIONAL EPITHELIUM? Location: Lines the ureters, urinary bladder, and part of the urethra. Function: stretches readily and permits distension of urinary organ by contained urine.
What are the 4 types of Tissues? Epithilial, Connective, Muscle and Nervous
Define ORGANS: a grouping of tissues specialized to perform a specific function (i.e. stomach)
Define SYSTEMS: grouping of organs specialized to perform a specific function (i.e. digestive system, cardiovascular system)
Define APOPTOSIS: cell death/suicide; activated by NKC’s (natural Killer Cells)
A brainstem stroke could result from a clot where? In the vertebral artery.
A burn which damages the epidermis only would be classified as what? a first degree burn.
A clot which originates in the great saphenous vein will lodge where? In the lungs.
A disease which can cause peripheral vascular insufficiency is called what? diabetes.
A potentially fatal condition which results from ischemic damage to the ____________ is known as ventricular fibrillation. Myocardium
A thrombus (blood clot) in the first branch of the arch of the aorta would affect the flow of blood to the___________ of the head and neck and right upper arm. right side
A thrombus (blood clot) in the third branch from the arch of the aorta would affect the flow of blood to the _____ shoulder and arm. left
A thrombus (clot) which forms in the anterior tibial vein would lodge in the lungs if it broke free and became an/a what? embolus.
All of the following structures are supplied by branches of the vertebral arteries except what? The vertebral arteries- brainstem, inner ear, cerebellum, the anterior cerebrum, OR the posterior cerebrum the anterior cerebrum.
All of the following would decrease the tendency for vericose veins except: Support stockings, walking, standing on hard surfaces, elevating legs standing on hard surfaces.
Arrector pili muscles are associated with what? each sebaceous gland
Arteries supplying the same territory often merge with one another forming what? arterial anastomostes
As it passes through the adductor canal/hiatus, the femoral artery becomes what? The popliteal artery
Blistering is characteristic of what? a second degree burn.
Blood in the superior mesenteric vein next enters the ___________ ______________ ____________. hepatic portal vein.
Blood which leaves the stomach tissues by way of the gastric veins next flows into the _________ ____________ ________ hepatic portal vein.
Blood within the pulmonary veins returns to the _________ _________. left atrium.
Contractions of the gastrointestinal tract which mix and churn the contents are known as what? segmentations or tonic contractions.
Created by: walkingbyfaith09



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