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Encyclopedia > Biological system
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 nerves.

In biology, a system is a group of organs that together 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. Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... The human brain In animals, the brain (enkephalos) (Greek for in the skull), is the control center of the central nervous system, responsible for behavior. ... The cerebellum (Latin: little brain) is a region of the brain that plays an important role in the integration of sensory perception and motor output. ... The Spinal cord nested in the vertebral column. ... Nerves (yellow) Nerves redirects here. ... Biology studies the variety of life (clockwise from top-left) E. coli, tree fern, gazelle, Goliath beetle Biology (from Greek: βίος, bio, life; and λόγος, logos, knowledge), also referred to as the biological sciences, is the study of living organisms utilizing the scientific method. ... This article is about the biological unit. ... List of bones of the human skeleton Human anatomy is primarily the scientific study of the morphology of the adult human body. ... For transport in plants, see Vascular tissue. ... The Respiratory System Among four-legged animals, the respiratory system generally includes tubes, such as the bronchi, used to carry air to the lungs, where gas exchange takes place. ... The Human Nervous System. ...


A group of systems composes an organism, e.g. the human body. Life on Earth redirects here. ... Physical Features of the Human Body The human body is the entire physical structure of a human organism. ...


Human systems

Humans have a 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. This article is about modern humans. ... List of bones of the human skeleton Human anatomy is primarily the scientific study of the morphology of the adult human body. ...

For transport in plants, see Vascular tissue. ... Human blood smear: a - erythrocytes; b - neutrophil; c - eosinophil; d - lymphocyte. ... The heart and lungs, from an older edition of Grays Anatomy. ... Human blood smear: a - erythrocytes; b - neutrophil; c - eosinophil; d - lymphocyte. ... f you all The blood vessels are part of the circulatory system and function to transport blood throughout the body. ... what was here was sick and improperly spelled. ... The salivary glands produce saliva, which keeps the mouth and other parts of the digestive system moist. ... The esophagus, oe/œsophagus*, or gullet is the muscular tube in vertebrates through which ingested food passes from the mouth area to the stomach. ... In anatomy, the stomach is a bean-shaped hollow muscular organ of the gastrointestinal tract involved in the second phase of digestion, following mastication. ... For the bird, see Liver bird. ... The gallbladder (or cholecyst, sometimes gall bladder) is a pear-shaped organ that stores about 50 ml of bile (or gall) until the body needs it for digestion. ... The pancreas is a gland organ in the digestive and endocrine systems of vertebrates. ... In anatomy, the intestine is the segment of the alimentary canal extending from the stomach to the anus and, in humans and other mammals, consists of two segments, the small intestine and the large intestine. ... The rectum (from the Latin rectum intestinum, meaning straight intestine) is the final straight portion of the large intestine in some mammals, and the gut in others, terminating in the anus. ... This article is about the bodily orifice. ... Major endocrine glands. ... For other uses, see Hormone (disambiguation). ... An endocrine gland is one of a set of internal organs involved in the secretion of hormones into the blood. ... The hypothalamus links the nervous system to the endocrine system via the pituitary gland (hypophysis). ... Located at the base of the skull, the pituitary gland is protected by a bony structure called the sella turcica. ... The pineal gland (pronunciation: pI-nE-&l, pI-), or epiphysis, is a small endocrine gland located near the middle of the brain. ... Categories: Anatomy stubs | Endocrine system ... In mammals, the adrenal gland (also known as suprarenal glands) are the triangle-shaped endocrine glands that sit on top of the kidneys; their name indicates that position (ad, near or at + renes, kidneys). They are chiefly responsible for regulating the stress response through the synthesis of corticosteroids and catecholamines... In zootomy, the integumentary system is the external covering of the body, comprised of the skin, hair, feathers, scales, nails, sweat glands and their products (sweat and mucus). ... Beyond overall skin structure, refer below to: See-also. ... For the 1968 stage production, see Hair (musical), for the 1979 film, see Hair (film). ... For other uses, see Nail. ... The human lymphatic system The lymphatic system is a complex network of lymphoid organs, lymph nodes, lymph ducts, lymphatic tissues, lymph capillaries and lymph vessels that produce and transport lymph fluid from tissues to the circulatory system. ... In mammals including humans, the lymphatic vessels (or lymphatics) are a network of thin tubes that branch, like blood vessels, into tissues throughout the body. ... Lymph nodes are components of the lymphatic system. ... In anatomy, lymph vessels are thin walled, valved structures that carry lymph. ... A scanning electron microscope image of a single neutrophil (yellow), engulfing anthrax bacteria (orange). ... White Blood Cells is also the name of a White Stripes album. ... This article or section contains too much jargon and may need simplification or further explanation. ... Adenoids (or pharyngeal tonsils, or nasopharyngeal tonsils) are a mass of lymphoid tissue situated at the very back of the nose, in the roof of the nasopharynx, where the nose blends into the mouth. ... Thymus, see Thyme. ... The spleen is an organ located in the abdomen, where it functions in the destruction of old red blood cells and holding a reservoir of blood. ... The muscular system is the biological system of an organism that allows it to move. ... For other uses of Muscles, see Muscles (disambiguation). ... The Human Nervous System. ... The human brain In animals, the brain (enkephalos) (Greek for in the skull), is the control center of the central nervous system, responsible for behavior. ... The Spinal cord nested in the vertebral column. ... The peripheral nervous system or PNS, is part of the nervous system, and consists of the nerves and neurons that reside or extend outside the central nervous system--to serve the limbs and organs, for example. ... Nerves (yellow) Nerves redirects here. ... The reproductive system is the ensembles and interactions of organs and/or substances within an organism that strictly pertain to reproduction. ... // For ovary as part of plants see ovary (plants) An ovary is an egg-producing reproductive organ found in female organisms. ... The Fallopian tubes, also known as oviducts, uterine tubes, and salpinges (singular salpinx) are two very fine tubes leading from the ovaries of female mammals into the uterus. ... This article is about female reproductive anatomy. ... The vagina, (from Latin, literally sheath or scabbard ) is the tubular tract leading from the uterus to the exterior of the body in female placental mammals and marsupials, or to the cloaca in female birds, monotremes, and some reptiles. ... Mammary glands are the organs that, in the female mammal, produce milk for the sustenance of the young. ... Human male anatomy The testicles, known medically as testes (singular testis), are the male generative glands in animals. ... The vas deferens (plural: vasa deferentia), also called ductus deferens, (Latin: carrying-away vessel) is part of the male anatomy of some species, including humans. ... The seminal vesicles are a pair of simple tubular glands posterinferior to the urinary bladder of males. ... The prostate is a compound tubuloalveolar exocrine gland of the male mammalian reproductive system. ... The penis (plural penises, penes) is an external male sexual organ. ... The Respiratory System Among four-legged animals, the respiratory system generally includes tubes, such as the bronchi, used to carry air to the lungs, where gas exchange takes place. ... The pharynx (plural: pharynges) is the part of the neck and throat situated immediately posterior to the mouth and nasal cavity, and cranial, or superior, to the esophagus, larynx, and trachea. ... The larynx (plural larynges), colloquially known as the voicebox, is an organ in the neck of mammals involved in protection of the trachea and sound production. ... Look up trachea in Wiktionary, the free dictionary. ... A bronchus (plural bronchi, adjective bronchial) is a caliber of airways in the the respiratory tract that conducts air into the lungs. ... Human respiratory system The lungs flank the heart and great vessels in the chest cavity. ... For other types of diaphragm, see Diaphragm. ... Skeleton is also a winter sport: see skeleton (sport). ... This article is about the skeletal organs. ... Cartilage is a type of dense connective tissue. ... A ligament is a short band of tough fibrous connective tissue composed mainly of long, stringy collagen fibres. ... A tendon (or sinew) is a tough band of fibrous connective tissue that connects muscle to bone and is built to withstand tension. ... It has been suggested that this article or section be merged into Excretory system. ... The kidneys are organs that filter wastes (such as urea) from the blood and excrete them, along with water, as urine. ... Transverse section of ureter. ... In anatomy, the urinary bladder is a hollow, muscular, and distensible (or elastic) organ that sits on the pelvic floor in mammals. ... In anatomy, the urethra is a tube which connects the urinary bladder to the outside of the body. ...

See also

This article is about a field of research. ... Biological Systems Engineering (BSE) is a broad-based engineering discipline with additional emphasis on biology and chemistry. ... Systems biology is a term used very widely in the biosciences, particularly from the year 2000 onwards, and in a variety of contexts. ... Systems Ecology is a transdiscipline which studies ecological systems, or ecosystems. ... Systems theory is an interdisciplinary field of science. ...

External links

Systems science Portal
  • Systems Biology: An Overview by Mario Jardon: A review from the Science Creative Quarterly, 2005.
  • Synthesis and Analysis of a Biological System, by Hiroyuki Kurata, 1999.

  Results from FactBites:
 
Emergent Properties of Biological Systems (231 words)
As such, emergent properties are at the intrinsic core of the entire science of systems biology.
A further elaboration of emergent properties deduces that the systems they form are called irreducible, since they cannot be fully comprehended when broken down into smaller segments, much in the way that a person would be unable to capture the essence of a movie by watching 3 of its scenes.
At the same time, the systems that are produced through emergence are also considered complex, in that they are unpredictable even to people who are experts in the nature of the individual components.
  More results at FactBites »

 
 

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