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The spleen   is located in the abdominal cavity, in the region of the left hypochondrium, at the level of the IX-XI ribs. The mass of an adult's spleen is 192 g in men, and 153 g in women. It has the shape of a flattened and elongated hemisphere. Two surfaces are distinguished in it: the diaphragmatic and the visceral. On the visceral surface, there is a gate of the spleen , through which the splenic artery and nerves enter the organ, and a vein exits. The spleen is covered on all sides by the peritoneum, which is firmly adhered to its fibrous capsule. Connective tissue beams (trabeculae) extend from the capsule into the organ. Between the trabeculae, the spleen parenchyma is called the pulp. Distinguish between white and red pulp. The white pulp is a typical lymphoid tissue of which periarterial lymphoid clutches and lymphoid nodules of the spleen or follicles are composed. Lymphoid nodules are round in shape and lie, as a rule, eccentricall...

Topic: «  Physiology of analyzers and higher nervous activity »   Purpose : to disassemble process of perception and transformation mechanical, chemical. Electromagnetic, thermal kinds of energy in a nervous signal and mechanisms  ligand –  receptor interactions; to consider classification and properties of receptors.  To give an idea about the modern mechanisms of formation of conditioned reflexes that underlie memory, because learning (mastering new knowledge ) due to the laws of formation of conditioned reflexes based on trace events in the structures of the CNS.       Reception name process of perception and transformation of mechanical, thermal, electromagnetic and chemical energy in a nervous signal or complex sequence  membrane  and  цитоплазматических  processes. Function reception  specially sensitive formations conditionally divided on features of their organization, character and mechanisms of interaction with a...