Term
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Definition
| Forms aprox. 13 to 14 days after fertilization, gives rise to the linning of the digestive tract and its dderivatives. |
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Term
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Definition
| Forms aprox. 13 to 14 days after fertilization, gives rise to the outer most layer of the skin. Neuroectoderm becomes the nervous system. |
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Term
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Definition
| Cells of the ectoderm migrate between the two layers, forms muscle, bones and blood vessels |
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Term
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Definition
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Term
| Types of Epithelial Tissue |
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Definition
| -Epithelia: Layers of cells covering internal or internal surfaces. |
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Term
| Characteristics of Epithelial Tissues |
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Definition
| -Cellularity : Almost entierly composed of cells. |
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Term
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Definition
| -Protects underlying structures |
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Term
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Definition
| Found where movement of material is principal (Blood vessels) |
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Term
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Definition
| Well adapted for protection |
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Term
| Junction: Macula adherens |
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Definition
| Desmosomes, CAM, dense area and intercellular cement. Spot Desmosomes: ties cells toghether, allows bending and twisting. Hemidesmosomes: attaches cell to the basal lamina. |
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Term
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Definition
| Present where secretion is the primary function |
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Term
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Definition
| Endocrine glands: releases hormones into the interstinal fluid, no ducts |
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Term
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Definition
| Is produced in the golgi apparatus, is released by vessicles (exocytocis) EX: Sweat glands |
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Term
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Definition
| Is released by cells bursting, killing gland cells, Gland cell is replaced by stem cell, EX: Sebaceous gland. |
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Term
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Definition
| Makes up part of every organ, consist of cells separated from each other by an abundant of extracellular matrix |
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Term
| Functions of connective tissue |
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Definition
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Term
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Definition
| Is the majority of tissue volume, determines specialized funtions |
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Term
| Function and Category of connective tissue proper |
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Definition
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Term
| Nine types of connective tissue proper cells |
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Definition
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Term
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Definition
| The most abundant cell type, found in all connective tissue proper, secretes proteins and hyaluronan (cellular cement) |
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Term
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Definition
| the second most abundant cell type, found in all connective tissue proper, maitain the fibers of the connective tissue proper. |
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Term
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Definition
| Large amoeba like cells of the immune system capable of movement, eats pathogens and damaged cells, fixed macrophages stay in tissue, Free macrophanges migrate. |
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Term
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Definition
| fat cells: each cell stores one large fat dropplet |
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Term
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Definition
| Stem cells that respond to injury or infection. Differentiate into diffrent types of connective tissue cell |
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Term
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Definition
| Sinthesize and store brown pigment melanin |
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Term
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Definition
| Stimulates inflamation after injury or infection. Releases histamine and heparin |
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Term
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Definition
| Specialized immune cells in lymphadic system. Lymphocytes may develope into plasmacytes that produces antibodies |
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Term
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Definition
| Phagocytic blood cells, respond to signals from macrophanges and mast cells |
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Term
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Definition
| -Most common fiber in connective tissue proper |
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Term
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Definition
| -Metwork of interwoven fibers (stoma) |
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Term
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Definition
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Term
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Definition
| -Is clear, colorless and viscous |
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Term
| Embryotic connective tissue |
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Definition
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Term
| Defenition of Muscle tissue |
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Definition
| Muscle tissue is specialied for contractions, produces all bodies movement. 3 types: Skeletal, Cardiac, Smooth Muscles |
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Term
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Definition
| Has long cylindrical cells that are striated, multinuclei. located in large skeletal muscles responsible for movement under voluntary control. |
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Term
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Definition
| Are found only in the heart used for contraction under involuntary movement. Has striated branched cells that are multnuclei and connect to one another at intercalated disks which contain gap junctions that allows for coordinated contractions. |
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Term
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Definition
| Are long and tapered at the end uninuclear and not striated, found in the walls of hollow organs, function under involuntary control |
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Term
| Characteristics of Nervous Tissue |
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Definition
| Specialiezed for conduncting electrical impulses, rapidly senses internal or external enviroment, processes information and coordinate response |
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Term
| Where are neural tissues concentrated at? |
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Definition
| they are concentrated in the central nervous system(brain and spinal cord) |
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Term
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Definition
| are nerve cells, peform electrical communication |
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Term
| Waht are Neuroglia cells? |
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Definition
| are supporting cells, they repair and supply nutrients to the neurons |
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Term
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Definition
| The tissues 1st response to injury, S/S include; swelling, redness, heat and pain. |
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Term
| Process of inflamatory response |
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Definition
| -Damage happens, medistors are released or activated in the injured tissue. |
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