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UGA CBIO 3000 - Epithelium and Connective Tissue
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CBIO 3000 1st Edition Lecture 5 Outline of Current LectureAdipose tissueAreolar tissueGlandular epitheliumDense connective tissueVocabularyAdipose tissueAreolar tissueCollagen fibersReticular fibersElastin fibersFibrocyteExocrine glandEccrine glandApocrine glandPheromonesEdocrine glandsDense connective tissueTendonsLigamentsAponeurosisHyaline cartilageElastic cartilageChondrocyteFibrocartilageCurrent LectureI. Adipose Tissuea. Also known as Fat tissueb. Because of the large amount of fat in the cells, the nucleus is pushed up against the sides of the cellc. Serve as nutrient storage, insulation, and protectionII. Areolar Tissuea. Three types of fibersi. Collagen fibers (thick and course)ii. Reticular fibersiii. Elastic fibers (wiggly)b. The main cell type is fibroblasts which mature into fibrocytes.i. Fibrocytes secrete the monomers that make the different types of fibersIII. Glandular Epitheliuma. Exocrine Glandsi. Release secretion into ductsii. Examples1. Sweat glandsa. Eccrine glands reach to the top of the epidermis and secrete watery sweat for cooling (found everywhere)b. Apocrine glands secrete a viscous liquid thought to have pheromones in it (found in armpits and pubic area)i. Pheromones-secretions that affect other members of the same species1. Sex pheromones2. Trail Following pheromones in insects3. Alarm pheromones2. Salivary glands3. Mammary glands4. Exocrine glands of the Pancreas5. Oil glands in skina. Holds and secretes entire fat cells b. Endocrine Glandsi. Release secretions directly into the blood streamii. Ductlessiii. Secrete hormonesIV. Dense Connective Tissuea. Tendons (connects bone to muscle)b. Ligaments (connects bone to bone)c. Aponeurosis (connects muscle to muscle)d. Hyaline Cartilagei. Characterized by a clear matrixii. No visible fibers in normal preparatione. Elastic Cartilagei. Very large chondrocytesii. Found in the earf. Fibrocartilagei. Chondrocytes are trapped in the lacunaii. Found in intervertebral


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