| Name |
Description |
Locations |
Functions` |
Picture |
Drawing |
| Simple squamous Epithelium |
Single layer of flat cells Flattened Nuclei Aka Mesothelium and endothelium |
Lining all vessels and heart, Bowman capsule of Kidney, air sacs of lungs, serosea |
Thin structure allows for diffusion and filtration, reduce friction when serosea |
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| Simple Cuboidal Epithelium |
Single layer of cube shaped cells, round nuclei |
Tubules of kidneys, covers surface of ovaries |
Secretion and absorption |
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| Simple Columnar Epithelium |
Single layer of tall, column like cells, oval nuclei May be ciliated and contain mucus secreting goblet cells (goblet cells are blue or white) |
Lines digestive track from stomach to anal canal Ciliated variety line uterine tubes |
Complex absorption and secretion, ciliated variety in uterine tube propels reproductive cells |
Nonciliated |
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| Stratified
Squamous Epithelium |
Thick layer of cells with surface cells being flat (squamous) and vassal cells being more cuboidal and mitotically active Both Karatinized (water resistant) and nonkeratininized variety |
Keratinized dry epidermis of skin Nonkeratinized moist lining of mouth, esophagus, vagina |
Thick layer provides for physical protection. |
Keratinized Nonkeratinized |
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| Pseudostratified ciliated columnar epithelium * the cilia give it away |
All cells touch basement membrane, and therefore are simple epithelium, however, some cells are tall and extend to free surface while other cells do not Nuclei seen at different levels. This give false stratified appearance Apical cells are ciliated and epithelium often contains goblet cells |
Lines trachea, a good portion of the respiratory tree, and the respiratory mucosa of the nasal cavity |
Mucus traps inhaled particles, then ciliary action propels it to pharynx (ciliary escalator); air conditioning |
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| Transitional epithelium |
Resembles a stratified squamous epithelium, however, in a non-distended, contracted organ the surface cells appear plump and dome shaped. |
Bladder, ureters |
Stretches and allows for distension of urinary organ by contained urine |
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| Areolar Connective Tissue |
Under basement membrane of epithelims, under skin |
Wraps and cushions organs, provides moveable connection between structures without impeding flow of nutrition or defensive cells, supports avascular epithelium |
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| Adipose Connective tissue |
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Hypodermis (under skin) abdomen, buttocks, thighs, breasts, palms, soles around Kidneys and heart |
Provides padding, heat insulation, energy storage |
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| Dense regular connective tissue |
Tightly packed collagen fibers in a parallel arrangement separated by rows of fibroblasts |
Tendons, ligaments |
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| Dense Irregular connective tissue NO SLIDE |
Collagen fibers run in different directions able to withstand stress in many different directions |
Reticular layer of dermis gives skin its strength, leather |
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| Cartilage |
Chondrocytes (cartilage cells) produce extracellular matrix and are found in tiny places called Lacunae Avascular Surrounded by perichondrium (around cartilage) |
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| Hyaline Cartilage (= 3-4 layers of cartilage) |
Glassy pink surface, homogeneous extracellular matrix Collagen fibers |
Trachea, larynx, costal cartilage, articular cartilage |
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| Elastic Cartilage ^Matrix stains deep blue |
Matrix contains elastic fibers in addition to collagen fibers. This provides for increased elasticity |
External ear, auditory tube, epiglottis |
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| Fibrocartilage |
Matrix contains obvious bundles of collagen fibers, great tensile strength, resists compression, absorbs shock No perichondrium and is continuous with dense fibrous tissue Chondrocytes found in short rows or elongated clusters |
Intervertebral discs, pubic symphysis, menisci |
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| Bone (Osseous tissue) |
Two types of Bone 1. Spongy bone (Cancellous bone) 2. compact bone or dense bone |
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| Blood and lymph |
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| Muscle Tissue Skeletal Muscle tissue |
Cells (muscle fibers) -elongated and multinucleated -nuclei are peripherally located Striated Voluntary Muscle |
Biceps, brachii, pectoralis major |
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| Cardiac Muscle Tissue |
Cells (cardiocytes), --centrally located nuclei -branching orientation Intercalated discs Striated Involuntary muscle |
Located only in the heart |
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| Smooth muscle |
Cells -spindle shaped -single oval nucleus that conforms to the shape of the cell, nuclei may have twisted appearance Longitudinal looks like a pink river Nonstriated Involuntary muscle |
Blood vessels, digestive track, urinary bladder, uterus, Esophagus |
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| Nervous tissue |
Cells -Neurons conducting impulses -Neuroglia supporting cells |
Ability to conduct electrical impulses from one part of the body to another |
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