Our Environment Its Relation to Us
Our Environment Its Relation to Us
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In our eReader you can find the full English version of the book. Read Our Environment Its Relation to Us Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Our Environment Its Relation to Us
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WHAT KEEPS THE HUMAN MACHINE OPERATING SMOOTHLY? 164. The Control Center of the Body. Running all through the human body is a system of long and short fibers somewhat like the many wires running to a tele- phone exchange. These fibers, called nerves, perform much the same service as the telephone wires, that is, they carry messages. For example, when you cut your finger, a rapid exchange of messages takes place in the nervous system and you jerk your finger away from the sharp edge as quickly a...s you can. The message to save your finger is only one of many, many ways in which the nervous system serves you. Every movement of a muscle, every response of the five senses (seeing, hearing, tasting, smelling, and feeling) is controlled by some action in the nervous system. It 31. 9 320 Control Centers of the Human Machine is the control center of all you feel and do and so you ought to know some of the important facts about it. 165. Parts of the Nervous System. The nervous system acts in two ways : (1) as a result of thought in the brain, and (2) by automatic response of certain cells in the spinal cord to messages which do not require action of the brain.
What to read after Our Environment Its Relation to Us?
You can find similar books in the "Read Also" column, or choose other free books by Harry a Harry Allen Carpenter to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
WHAT KEEPS THE HUMAN MACHINE OPERATING SMOOTHLY? 164. The Control Center of the Body. Running all through the human body is a system of long and short fibers somewhat like the many wires running to a tele- phone exchange. These fibers, called nerves, perform much the same service as the telephone wires, that is, they carry messages. For example, when you cut your finger, a rapid exchange of messages takes place in the nervous system and you jerk your finger away from the sharp edge as quickly a...s you can. The message to save your finger is only one of many, many ways in which the nervous system serves you. Every movement of a muscle, every response of the five senses (seeing, hearing, tasting, smelling, and feeling) is controlled by some action in the nervous system. It 31. 9 320 Control Centers of the Human Machine is the control center of all you feel and do and so you ought to know some of the important facts about it. 165. Parts of the Nervous System. The nervous system acts in two ways : (1) as a result of thought in the brain, and (2) by automatic response of certain cells in the spinal cord to messages which do not require action of the brain.
What to read after Our Environment Its Relation to Us?
You can find similar books in the "Read Also" column, or choose other free books by Harry a Harry Allen Carpenter to read onlineMoreLess
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