between a tract and a nerve? In addition to pyramidal cells, other nuclei seen in these sections may belong to other neurons or to glial cells also present in the cortex. Pancreatic serous acini secrete digestive enzymes which break down fat, carbohydrates and proteins. The primary purpose of this article is to evaluate the histology of peripheral nervous tissue. That single axon can branch repeatedly to communicate with many target cells. All cells contain cytoplasm, are surrounded by a membrane, and contain a variety of structures and organelles. At one end of the axon are dendrites, and at the other end, the axon forms synaptic connections with a target. Ependymal cells line each ventricle, one of four central cavities that are remnants of the hollow center of the neural tube formed during the embryonic development of the brain, as well as the central canal of the spinal cord. A key difference between myelin and the insulation on a wire is that there are gaps in the myelin covering of an axon. Peripheral nerves: Histology and clinical aspects | Kenhub The branch of medical science that deals with the. Multiple muscle cells are bound by connective tissue into fascicles, and multiple fascicles join to form a muscle belly. Histology of Nervous TissueNervous system ppt #2. Describe the organization and understand some of the basic functions of regions of the: Observe the 3-layered organization of the, Outer plexiform (molecular) layer: sparse neurons and glia, Outer granular layer: small pyramidal and stellate neurons, Outer pyramidal layer: moderate sized pyramidal neurons (should be able to see these in either, Inner granular layer: densely packed stellate neurons (usually the numerous processes arent visible, but there are lots of nuclei reflecting the cell density), Ganglionic orinner pyramidal layer: large pyramidal neurons (should be able to see these in either, Multiform cell layer: mixture of small pyramidal and stellate neurons. Other methods include histochemistry, immunocytochemistry, hybridization techniques, tissue culture and many others. Basic nervous tissue staining mechanisms and classification of nervous tissue elements will be discussed. All of these features give muscles the ability to contract and perform various functions, such as movement of the extremities (skeletal muscle), peristalsis of the gastrointestinal tract (smooth muscle) and beating of the heart (cardiac muscle). Chapter 12Nervous Tissue. The endocrine system is a set of tissues that secrete hormones directly into the bloodstream. Most of the respiratory tract is lined by respiratory mucosa; a pseudostratified columnar ciliated epithelium with mucus producing goblet cells. Histology - study of tissues Tissue - a collection of similar cells that group together to perform a specialized function. Central Nervous System | histology - University of Michigan Kind of like border police, it controls everything that comes in or out of the cell.

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