What Is the Function of the Spleen? By Jessica Pestka‚ eHow Contributor updated: April 28‚ 2010 The spleen is an internal organ‚ about the size of a fist‚ found in the human abdomen. The spleen functions as part of the immune system and contributes to the production and storage of blood cells as part of the circulatory system. Although the spleen is an important organ‚ it is not vital for human survival. Function of the Spleen The majority of the spleen’s functions are related to the immune
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and animal cells have several differences and similarities. For example‚ animal cells do not have a cell wall or chloroplasts but plant cells do. Animal cells are round and irregular in shape while plant cells have fixed‚ rectangular shapes. Animal Cell Plant Cell Cell wall Absent Present (formed of cellulose) Shape Round (irregular shape) Rectangular (fixed shape) Vacuole One or more small vacuoles (much smaller than plant cells). One‚ large central vacuole taking up 90% of cell volume.
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endogenous aggressive factor such as gastric acid by mainly increasing secretion of gastric mucosa and decreasing gastric acid secretion‚ also PGE2 has a role in regulating the kidney function by maintaining vascular tone‚ blood flow‚ and salt and water excretion. Moreover‚ there are important and opposing functions of both prostacyclin PGI2 and thromboxane TXA2 in maintaining the vascular homeostasis and good cardiovascular health‚ in detail‚ TXA2 is synthesised in the platelets by the action of
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familiarize you with a spreadsheet application software called MS Excel. After the completion of the lab‚ you should be able to: 1. work with MS Excel or other spreadsheet programs 2. use functions and formulas in a spreadsheet application software for calculation 3. explain what functions and formulas are‚ how they work‚ and the difference between them Formulas Well‚ a formula is a simple calculation that involves either *‚ /‚ +‚ -‚ or ( ). Of course your formula will ALWAYS start
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Cell Organelles Nucleus Its function is to control the cell’s activities and retain the chromosomes. The nucleus is bound by a double membrane‚ the nuclear envelope. The nuclear envelope has pores in it to allow the transport of mRNA. The cytoplasm like material is called nucleoplasm which contains chromatin (coils of DNA and histone proteins)‚ it is chromatin that condenses to form chromosomes during cell division. Within the nucleus is a small spherical body called the nucleolus which
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January 22‚ 2013 Lab #: 1 Title: Cell Washing Aim: To demonstrate quality assurance techniques in performing cell washing. Principle: Cell washing is a common procedure performed in the laboratory. This is a series of careful steps taken to wash red blood cells normally three times intermittently with centrifugation and decanting (Harmening 2012). The procedure serves to remove unbound immunoglobulins‚ Wharton’s jelly (from cord blood)‚ hemolysed cells and also fibrin. The principle of the
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Box 353055 · University of W ashington · Seattle W A 98195-3055 www.hallway.org Science‚ Discrimination‚ and the Blood Supply: San José State University’s Blood Drive Ban San José State University Suspends Campus Blood Drives On January 29‚ 2008‚ Don W. Kassing‚ President of San José State University (SJSU)‚ announced that he was suspending indefinitely all blood drives taking place on the SJSU campus‚ plus any drives taking place elsewhere that were arranged by employees representing
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The introduction briefly talks about the hindbrain‚ its location‚ structure and highlights its main functions. It also talks about how the hindbrain is divided. The next topic is about Structure and Function. It first starts with the functions of the hind brain and then mentions each and every function of the brainstem‚ that it‚ the medulla‚ pons and the cerebellum. It also mentions the functions of the cranial nerves. The next section is on Injury and Disorder. Here it is mentioned‚ as a list‚
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circulatory systems work together to distribute oxygen to‚ and remove carbon dioxide from the cells of the body. The circulatory system and the respiratory system work closely together to ensure that organ tissues receive enough oxygen. Oxygen is required for cellular functions. The air breathed in and held in the lungs is transferred to the blood. The blood is circulated by the heart‚ which pumps the oxygenated blood from the lungs to the body. Additionally‚ the two body systems work together to remove
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Sickle Cell Anemia is a hereditary disease that changes the smallest and most important components of the body. A gene causes the bone marrow in the body to make sickled shapes‚ when this happens; it causes the red blood cell to die faster. This is what causes Hemolytic Anemia. Older children and adults with sickle cell disease may experience a few complications‚ or have a pattern of ongoing problems that shorten their lives. The most common and serious complications of sickle cell disease are anemia
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