#system.body_part a group of physiologically or anatomically related organs or parts; "the body has a system of organs for digestion"
supertype: body_part any part of an organism such as an organ or extremity
subtype: articulatory_system the system of joints in the body
subtype: digestive_system__digestivesystem__gastrointestinal_system__systema_alimentarium__systemaalimentarium__systema_digestorium__systemadigestorium the system that makes food absorbable into the body
subtype: endocrine_system__endocrinesystem the system of glands that produce endocrine secretions that help to control bodily metabolic activity
subtype: immune_system a system (including the thymus and bone marrow and lymphoid tissues) that protects the body from foreign substances and pathogenic organisms by producing the immune response
subtype: integumentary_system__integumentarysystem the skin and its appendages
subtype: reticuloendothelial_system__reticuloendothelialsystem__RES a widely distributed system consisting of all the cells able to ingest bacteria or colloidal particles etc, except for certain white blood cells
subtype: mononuclear_phagocyte_system__mononuclearphagocytesystem__MPS__system_of_macrophages a widely distributed system of free and fixed macrophages derived from bone marrow
subtype: muscular_structure__musculature__muscle_system the muscular system of an organism
subtype: midriff__diaphragm (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration
subtype: esophagus__esophagu__oesophagus__gorge__gullet the passage between the pharynx and the stomach
subtype: musculoskeletal_system__musculoskeletalsystem the system of muscles and tendons and ligaments and bones and joints and associated tissues that move the body and maintain its form
subtype: nervous_system__nervoussystem__systema_nervosum__systemanervosum the sensory and control apparatus consisting of a network of nerve cells
subtype: sympathetic_nervous_system__sympatheticnervoussystem originates in the thoracic regions of the spinal cord; opposes physiological effects of the parasympathetic: reduces digestive secretions; speeds the heart; contracts blood vessels
subtype: parasympathetic_nervous_system__parasympatheticnervoussystem__parasympathetic originates in the brain stem and lower part of the spinal cord; opposes physiological effects of the sympathetic nervous system: stimulates digestive secretions; slows the heart; constricts the pupils; dilates blood vessels
subtype: central_nervous_system__centralnervoussystem__CNS__systema_nervosum_centrale the portion of the vertebrate nervous system consisting of the brain and spinal cord
subtype: peripheral_nervous_system__systema_nervosum_periphericum the section of the nervous system lying outside the brain and spinal cord
subtype: reproductive_system__genital_system__genitalsystem organs and tissues involved in the production and maturation of gametes and in their union and subsequent development as offspring
subtype: female_reproductive_system the reproductive system of females
subtype: male_reproductive_system the reproductive system of males
subtype: urogenital_system__urogenital_apparatus__urinary_system__urinarysystem__urinary_apparatus__urinaryapparatu__genitourinary_system__genitourinarysystem__genitourinary_apparatus__genitourinaryapparatu__systema_urogenitale__systemaurogenitale__apparatus_urogenitalis the system that includes all organs involved in reproduction and in the formation and voidance of urine
subtype: respiratory_system__respiratorysystem__systema_respiratorium__systemarespiratorium the system for taking in oxygen and giving off carbon dioxide; in terrestrial animals this is accomplished by breathing
subtype: sensory_system__sensorysystem the body's system of sense organs
subtype: auditory_system the sensory system for hearing
subtype: visual_system the sensory system for vision
subtype: vestibular_apparatus__vestibular_system organs mediating the labyrinthine sense; concerned with equilibrium
subtype: tract a system of body parts that together serve some particular purpose
subtype: respiratory_tract__respiratorytract the passages through which air enters and leaves the body
subtype: lower_respiratory_tract__lowerrespiratorytract the bronchi and lungs
subtype: upper_respiratory_tract__upperrespiratorytract the nose and throat and trachea
subtype: urinary_tract__urinarytract the organs and tubes involved in the production and excretion of urine
subtype: vascular_system the vessels and tissue that carry or circulate fluids such as blood or lymph or sap through the body of an animal or plant
subtype: water_vascular_system system of fluid-filled tubes used by echinoderms in locomotion and feeding and respiration
subtype: portal_system system of veins that carry blood from the abdominal organs to the liver
subtype: lymphatic_system__lymphaticsystem__systema_lymphaticum the interconnected system of spaces and vessels between body tissues and organs by which lymph circulates throughout the body
subtype: circulatory_system__circulatorysystem__cardiovascular_system the organs and tissues involved in circulating blood and lymph through the body
subtype: fetal_circulation__fetalcirculation__foetal_circulation the system of blood vessels and structures through which blood moves in a fetus
subtype: skeletal_system__skeleton__frame__systema_skeletale__systemaskeletale the hard structure (bones and cartilages) that provides a frame for the body of an animal
subtype: endoskeleton the internal skeleton; bony and cartilaginous structure (especially of vertebrates)
subtype: exoskeleton the exterior protective or supporting structure or shell of many animals (especially invertebrates) including bony or horny parts such as nails or scales or hoofs
subtype: carapace__shell__cuticle hard outer covering or case of certain organisms such as arthropods and turtles
subtype: cuticula the outer body wall of an insect
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