#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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