JOSH+,RILEY'S+AND+JACK'S+EXPLANATION

= ﻿__//**Explanation By Josh, Jack, Riley**//__ = = = = =

=An explanation is a statement which points to causes context and consequences of some object. Explanation can only be given by those with understanding of the object which is explained an explanation is about an object like how waters come out of a tap.= =OUR EXPLANATION ON THE NERVOUS SYSTEM= =Tasting, smelling, seeing, hearing, thinking, dreaming, breathing, heart beating, moving, running, sleeping, laughing, singing, remembering, feeling pain or pleasure, painting, writing...you couldn't do any of these things without your central Nervous system! The Nervous system is made up of the brain, the spinal cord and lots of different types of nerves such as the Cranial nerves, Cervical nerves, Thoraric nerves, the Radial nerve, the Lumbar nerve, the Sacral nerve, the Sciatic nerve, the Tibial nerve and the Median nerve. Some nerves send messages to the brain and the brain sends messages to your body. Nerves are so small you can only see them through a microscope. Nerves have tiny branches coming off it to connect to other nerves. Your spinal cord is made up of a bunch of nerves. The spinal cord is the main pathway for information connecting the brain and peripheral nervous system. The human spinal cord is protected by a bony spinal column. The spinal column is made up of bones called vertabrae. The spinal cord is flexible.The spinal cord is about 45cm long in men and 43cm long in women.= =There are 5 different parts to your brain the Cerebrum, the Cerebellum, the brain stem, the Pituitary gland and the Hypothalamus. The biggest part of your brain is your Cerebrum it is the thinking part of the brain and covers up 85% of the brains weight. The Cerebellum controls balance, movement and coordination which is how your muscles work together The Cerebellum is only 1/8 of the Cerebrums size.The next part of the brain is the brain stem. It is small and connects your brain to the spinal cord. The brain stem is the part of your brain that is in charge of functioning your parts of your body that you can't function without. It also is in charge of your involuntary muscles. The Pituitary gland is very small it is only the size of a pea! It releases hormones which make you grow. The Hypothalamus is the brain's thermostat. If your body is too hot your Hypothalamus tells your body to sweat. If your body is too cold your Hypothalamus tells your body to shiver. These things are attempts to put your body back to your normal temperature. In your brain there is a bunch of cells called amygdala Scienctist believe amygdala is responsible for emotions such as happy, sad, angry, glad, suprised and much, much more.= =The nervous system is the most important system in your body. Without it you couldn't do anything!!!=



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