There are several main systems of t

There are several main systems of the body: the skeletal, the muscular, the nervous, the circulatory, the digestive, the respiratory, the urinary, the endocrine and the reproductive systems.
The skeletal system consists of the bones of the body and ligaments and cartilages, which join them. The chief function of the skeletal system is structural.
The muscular system consists of the skeletal muscles and their associated structures. The main function of this system is to move us about.
The nervous system consists of the brain and spinal cord, nerves, ganglia and receptors. It is a complex information system with all the necessary means for receiving, processing and communicating information.
The circulatory system consists of the heart and blood vessels and the blood, which is pumped through the blood vessels by the heart. Its function is mainly that of transportation system: the nutrients, oxygen, and special substances which are required by cells are carried by the blood stream; and the cellular wastes and sometimes other materials produced by the cells are carried away by the blood stream.
The digestive system consists of the alimentary canal and a number of associated glands.
The respiratory system consists of the lungs, the air passages leading to them and associated structures. Its main function is to convey oxygen to the lungs, where it can enter the blood stream and to remove carbon dioxide, which escapes from the blood into the lung spaces.
The urinary system consists of the kidneys which produce urine by removing nitrogenous and other wastes from the blood: the two ureters, which convey the urine away from the kidneys; the urinary bladder, where the urine is stored until it is discharged; and the urethra through which the urine is discharged.
The endocrine system consists of a number of glands throughout the
body, which produce regulatory substances called hormones. The endocrine system
serves to regulate a large number of activities

Результаты (русский) 3:

有几个生于Systems of the main are the muscular体：the骨骼，神经，the，the circulatory，the消化，the呼吸，the尿，the内分泌and the生殖系统。The骨骼系统由骨头of the body and of the ligaments and cartilages，which join他们。The function of the system is和主任麻烦过来一下骨骼结构。《muscular骨骼肌肉系统由of the and their相关结构。The main function of this system is to move us about。《神经系统由脑和脊髓的of the脐带，nerves，ganglia and受体。它是一个复杂Information System with all the必备的均值for接收，处理和通信信息。《circulatory系统由of the heart and血液容器and the血液，which is泵浦through the血液容器by the heart。有function is mainly that of交通系统：the营养成分，氧，and special substances which are required by细胞都携带by the血液流；and the other材料的细胞产生的废物和有时是by the细胞携带了by the血液流。The消化系统由of the alimentary canal and a number of相关glands。《呼吸系统由of the lungs，the Air leading to他们的旅行和相关结构。有main function is to convey氧to the lungs where it can Enter the，血液流and to remove碳二氧化物，which逃亡from the血液into the肺Spaces。该系统由尿尿by which of the kidneys产生的实验nitrogenous and other废物from the血液：the双convey ureters，which the尿离开from the kidneys；the尿膀胱，where the尿是直到it is排出存储；and the urethra通是which the尿排出。The内分泌系统由（a number of glands throughout the生产调控substances称为体，这样。The内分泌系统serves to regulate a number of活性的大