Head and Neck Abdomen and Pelvis Upper Extremity Lower Extremity Thorax Connective tissue Connective tissue is the most abundant of the four types of tissues present in the human body, the others being epithelial, muscle, and nervous tissue.
Some lymphocytes circulate throughout the body, moving freely from blood to ordinary connective tissue and back again. On microscope slides, clusters of adipocytes present an appearance somewhat like a "foam". The name reflects former confusion about the distinction between endothelial cells and the scattered population of macrophages monocytes, histiocytes.
Active Tissue study guide appear larger than resting ones, with more cytoplasm and with nuclei that are more euchromatic less densely stained.
The sound knowledge of these normal histologic structures is essential for understanding the histopathology or pathology of any disease, which often cause specific changes in cells and tissues.
Fibroblasts are already a mature, differentiated cell type although some may have the capacity Tissue study guide differentiate into other mesenchymal cell types as well.
For an image of scar formation, see WebPath. They tend to be somewhat larger than fibroblasts, with more cytoplasm.
Histology Guide solves this problem by recreating the look and feel of a microscope in an intuitive, browser-based interface. This type of tissue provides a suitable medium for the diffusion of nutrients and waste products between cells and their blood supply.
Dense regular connective tissue is arranged according to a definite pattern, with collagen fibers aligned with the linear orientation of the fibroblasts.
Collagen is secreted by fibroblasts as procollagen molecules, converted extracellularly into tropocollagen which self-assembles into microscopically visible fibers and grossly evident mechanical structures such as tendons.
Plasma cells are differentiated lymphocytes which are specialized to manufacture and secrete relatively large amounts of antibody.
These lysosomes are usually inconspicuous by light microscopy but readily visible by electron microscopy. Adipocytes are large connective tissue cells which contain a substantial amount of lipid stored in the form of conspicuous round droplets. Tissue study guide type I collagen fibers of ordinary fibrous connective tissue are colorless, so in most cases their bulk appearance is white e.
Upon the slightest disturbance, they release chemical signals which diffuse through the surrounding ground substance and trigger the process of inflammation.
Brown fat is scarce in adults but may be found around the adrenal gland. More than a dozen different varieties of collagen exist in the body, usually identified by Roman numerals.
This variety reflects the differences in the composition, arrangement, number of cells, fibers and ground substance present in each. A software-based virtual microscope Zoomify HTML5 Enterprise allows the examination of large and small structures in the same specimen.
They also control tissue and organ function, and the maintenance of their overall structural and metabolic integrity. Adipocytes function primarily as warehouses for reserve energy.
And fibroblasts throughout the body all appear similar to one another, wherever they occur in ordinary connective tissues. That results in a sponge-like structure, in which cell and fluids are able to move freely. It can also be found in the papillary layer of the dermis, hypodermis, linings of peritoneal and pleural cavities, glands, and the mucous membranes supporting the epithelial cells.
These cells function in thermogeneration, essentially burning fat to produce heat. The reticular cells are distributed along the framework, partially covering the reticular fibers and ground substance with cytoplasmic processes. Inside the tissue, cellular functions are integrated by a variety of local chemical mediators or by direct contact between the cells.
Macrophages which ingest and remove foreign material or damaged cells. The list above is not exhaustive.Study Flashcards On Study Guide 2: Memory Game: Epithelial Tissue at mint-body.com Quickly memorize the terms, phrases and much more.
mint-body.com makes it /5(1). Dec 21, · Histology (Greek: histos = tissue and logos = teaching) is the study of tissue and belongs to the field of microscopic anatomy.
It deals with the arrangement and structure of cells and their organization as a cellular unit in various tissue types.5/5(3).
Introduction to cells and tissues. Histology (‘histo’ meaning ‘tissue’ or ‘web’ in Greek) is the study of normal cells and tissues, mainly with the use of a microscope.
A study guide for the different types of tissue, epithelial, connective, muscle and nervous. A&P Exam 1: Tissues (Study Guide) study guide by midwagner includes questions covering vocabulary, terms and more.
Quizlet flashcards, activities and games help you improve your grades. Epithelial tissue, or epithelium, has the following general characteristics: Epithelium consists of closely packed, flattened cells that make up the inside or outside lining of body areas.
There is little intercellular material.
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