Psychology Week 3 Paper

Topics: Brain, Nervous system, Central nervous system Pages: 2 (463 words) Published: February 13, 2013
Psychologists study the mind, but it’s important for psychologists to about the body’s biological foundations because the brain is responsible for every activity the body undertakes. It plays a role in every thought that humans think, every memory we have, and every skills that we develop. The brain also determines a person’s personality. A human being cannot function without a brain. This essential organ is also the most vulnerable and delicate part of the body. Even the smallest injury can affect the brain’s function.

The brain consists of three main parts-cerebrum, cerebellum, and the brain stem. The grey outer part of the cerebrum is called the cortex. This is where information from other parts of the body is received. Within the cortex is a large white matter, which sends messages to the other parts of the body. The cerebrum is further sub-divided into several sections, and each section is responsible for a particular sense organ. Below the cerebrum, toward the back, is the cerebellum. This part of the brain controls our body movements. The brain is connected to the spinal cord through the brain stem. All involuntary activities like breathing, heartbeat, and digestion are controlled by the brain stem. It also takes messages from the brain to the spinal cord, which runs from the brain to the lower back, through the backbone. The spinal cord carries information to the brain and messages from the brain to the other organs.

The endocrine glands play a very important role in the nervous system. These glands release chemicals called hormones, which travel to the brain and other parts of the body. These hormones affect our bodily functions. There are eight major glands in the human body that produce hormones. Some glands are present only in men and others can be found only in women. The hormones affect the growth of bones and muscles, the balance of minerals and chemicals in the body, and reproduction.

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