Biological system 5780599 226021662 2008-07-16T14:00:50Z 123.237.129.81 mammals, link fixed [[Image:SystemExample.jpg|thumb|300px|An example of a system: The nervous system. This basic diagram shows that this system is made up of 4 different basic organs: the [[brain]], the [[cerebellum]], the [[spinal cord]], and the [[nerve]]s.]] In [[biology]], a '''system''' is a group of [[Organ (anatomy)|organs]] that work together to perform a certain task. Common systems, such as those present in [[mammals]] and other animals, seen in [[human anatomy]], are those such as the [[circulatory system]], the [[respiratory system]], the [[nervous system]], etc. A group of systems composes an [[organism]], e.g. the [[human body]]. == Human systems == [[Human]]s have a variety of systems due to the complexity of the species' organism. These specific systems are widely studied in [[Human anatomy]]. ''"Human" systems'' are also present in many animals. * [[Circulatory system]]: pumping and channeling [[blood]] to and from the body and lungs with [[heart]], [[blood]], and [[blood vessel]]s. * [[Digestive system]]: digestion and processing food with [[salivary gland]]s, [[esophagus]], [[stomach]], [[liver]], [[gallbladder]], [[pancreas]], [[intestine]]s, [[rectum]], and [[anus]]. * [[Endocrine system]]: communication within the body using [[hormone]]s made by [[endocrine gland]]s such as the [[hypothalamus]], [[pituitary]] or pituitary gland, [[pineal body]] or pineal gland, [[thyroid]], [[parathyroid]]s, and [[adrenal]]s or adrenal glands * [[Integumentary system]]: [[skin]], [[hair]] and [[nail (anatomy)|nail]]s * [[Lymphatic system]]: structures involved in the transfer of lymph between tissues and the blood stream, the [[lymph]] and the [[lymph node|node]]s and [[lymph vessel|vessels]] that transport it including the [[Immune system]]: defending against disease-causing agents with [[leukocyte]]s, [[tonsil]]s, [[adenoid]]s, [[thymus]], and [[spleen]] * [[Muscular system]]: movement with [[muscle]]s. * [[Nervous system]]: collecting, transferring and processing information with [[brain]], [[spinal cord]], [[peripheral nerve]]s, and [[nerve]]s * [[Reproductive system]]: the sex organs, such as [[ovary|ovarie]]s, [[fallopian tube]]s, [[uterus]], [[vagina]], [[mammary gland]]s, [[testes]], [[vas deferens]], [[seminal vesicle]]s, [[prostate]], and [[penis]]. * [[Respiratory system]]: the organs used for breathing, the [[pharynx]], [[larynx]], [[trachea]], [[bronchi]], [[lung]]s, and [[thoracic diaphragm|diaphragm]]. * [[Skeletal system]]: structural support and protection with [[bone]]s, [[cartilage]], [[ligament]]s, and [[tendon]]s. * [[Urinary system]]: [[kidney]]s, [[ureter]]s, [[urinary bladder|bladder]] and [[urethra]] involved in fluid balance, electrolyte balance and excretion of urine. == See also == * [[Artificial life]] * [[Biological systems engineering]] * [[Systems biology]] * [[Systems ecology]] * [[Systems theory]] == External links == {{portal|Systems science|Complex-adaptive-system.jpg}} * [http://www.scq.ubc.ca/?p=253 Systems Biology: An Overview] by Mario Jardon: A review from the Science Creative Quarterly, 2005. * [http://www.genome.ad.jp/manuscripts/GIW99/Poster/GIW99P66.pdf. Synthesis and Analysis of a Biological System], by Hiroyuki Kurata, 1999. {{composition}} {{systems}} {{biology-stub}} [[Category:Systems]] {{Systemstheory-stub}} [[bs:Organski sistem]] [[cs:Orgánová soustava]] [[de:Organsystem]] [[et:Elundkond]] [[es:Sistema biológico]] [[he:מערכות הגוף‏]] [[hr:Sustav organa]] [[nl:Orgaansysteem]] [[sk:Orgánová sústava]] [[fi:Elimistö]] [[th:ระบบอวัยวะ]] [[zh:器官系統]]