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Short note on the human brain
Overview of structure and function of the brain essay
Short note on the human brain
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The human brain is very complex is structure and function. What the brain does and how it plays a key part in everyday life functions such as moving, eating, and temperature control. The brain has four different lobes that function and perform differently from the other. The Adult human brain weighs about 3 lbs. containing about 85% water that consists of gelatin and over 100 billion neurons (Bostwick & Weber, 2013). The brain is responsible for controlling the bodies many functions and interactions with the outside world. The Nervous system directs all the functions of the human body making the Nerve cells or neuron the basic element of the nervous system. Neurons are highly specialized cells that vary greatly in functions (Bostwick & Weber, …show more content…
Neurons have three basic parts; Cell body, Dendrites, and Axon, generally covered by fatty tissues called Myelin Sheath. All neurons have two basic properties; Excitability- The ability to respond to a stimulus (anything that arouses a response) and Conductivity- The ability to transmit a signal (Bostwick & Weber, 2013). The Central Nervous system is the Brain, Spinal cord, and sense organ (eyes) controlling the thought processes, guiding movements, and registration of the sensations throughout the body (Bostwick & Weber, 2013). Another important part of the brain is the Brainstem. The Brainstem is made up of Midbrain, involved with visual reflexes, pons (Controlling certain respiratory functions) and the Medulla Oblongata (containing a center that regulates heart and lung functions, swallowing, vomiting, coughing, and sneezing. The midbrain connects to the cerebrum above the pons which lies between the midbrain and the medulla oblongata, which connects the spinal cord (Bostwick & Weber,
The brain is an organ that regulates body functions, behaviors, and emotions. Neurons are the cells that fulfill these functions. How do neurons do this? A neuron plays an important role in the central nervous system. Why? Because neurons regulate how we think, feel, and control our body functions. A typical neuron has three parts: cell body, axon, and dendrites. When a neuron receives an electrical impulse, that impulse travels
Firstly, there is various of sensing activities as in seeing and hearing as in a sense of understanding of what is seen and heard. Secondly the sense of feeling in numerous parts of the body from the head to the toes. The ability to recall past events, the sophisticated emotions and the thinking process. The cerebellum acts as a physiological microcomputer which intercepts various sensory and motor nerves to smooth out what would otherwise be jerky muscle motions. The medulla controls the elementary functions responsible for life, such as breathing, cardiac rate and kidney functions. The medulla contains numerous of timing mechanisms as well as other interconnections that control swallowing and salivations.
It has been proven that a child’s early years are the peak at which the mind can bend and shape, creating the foundation for a life. We know now that even before birth, the mind is a delicate matter that if improperly taken care of could alter a person’s entire life. Nourishment and stimulation before and after the birth of a child mold’s the brain in its most malleable state. Medical and scientific institutes paired with parenting information organizations have made information readily available for parents, childcare providers, and students to advise them of the importance of childhood brain development. This information is not only critical for the child, but for the person they will become in the future.
When a message comes to the brain from body parts such as the hand, the brain dictates the body on how to respond such as instructing muscles in the hand to pull away from a hot stove. The nerves in one’s skin send a message of pain to the brain. In response, the brain sends a message back dictating the muscles in one’s hand to pull away from the source of pain. Sensory neurons are nerve cells that carry signals from outside of the body to the central nervous system. Neurons form nerve fibers that transmit impulses throughout the body. Neurons consists of three basic parts: the cell body, axon, and dendrites. The axon carries the nerve impulse along the cell. Sensory and motor neurons are insulated by a layer of myelin sheath, the myelin helps
Separating the brain into the three main parts gives a much better idea as to how the brain functions. These three parts are the cerebral cortex, the brain stem and the cerebellum. The brain stem is the terminal from the brain to the body. This is where the brain will receive information from the body and then send out signals back to the body to tell it the correct response. When it comes to everyday reaction and natural bodily functions, the cerebral cortex will kick in, made up of pretty much all “grey matter.” The cerebral cortex is the hub for most of your reactions and memories. The cerebellum is mainly responsible for regulating the levels in the body, organizing the information and memories the brain receives and it also controls with the “thought process.”(brains and interactions, NP BBCsci.)
1. What is the difference between Introduction The brain has many different parts to it which help one function through daily life; parts such as the cerebrum which controls voluntary movement and regulates functions such as thinking, speaking and the ability to recall information. The cerebellum controls the balance and coordination and finally the brain stem, which consists of the medulla oblongata and the spinal cord which controls all involuntary functions such as breathing, heart rate and blood pressure.
Okay, so the brain is basically billions of brain cells arranged in different patterns that coordinate our thoughts, behaviors, movements, and our senses. It’s like a little highway system of nerves that connects your brain to the rest your body, so you can communicate and respond in a split second. While all the parts of your brain work together, each and every part is responsible for every function.
Our brains weigh about three pounds and are divided into two similar looking but functionally different hemisphere, the right hemisphere and the left hemisphere. Both of which are connected by a large bundle of nerves called the corpus collosum. In some people with severe seizure disorders such as epilepsy, it was found that if this bundle of nerves was severed their seizure would either cease or a the very least be better controlled. From this surgical procedure it was discovered that the two hemispheres had different methods of processing information, as well as controlling parts of the body. The left hemisphere controls the right have of the body and the right hemisphere controls the left side.
The brain is the most important organ in the body with our heart. It controls every action, thoughts and regulates our bodily function. It is divided into section, each of them are responsible for various process. Before we can understand dopamine, we must talk about the different parts of the brain. The frontal lobe is the main difference between us and animals. ...
The human nervous system is divided into two parts, the central nervous system and the peripheral nervous system. The central nervous system, CNS, is just the brain and spinal cord. The peripheral nervous system, PNS, includes the nerves and neurons that extend outwards from the CNS, to transmit information to your limbs and organs, for example. Communication between your cells is extremely important, neurons are the messengers that relay information to and from your brain. Nerve cells generate electrical signals to transmit information.
The brain is the control center of the human body. It sends and receives millions of signals every second, day and night, in the form of hormones, nerve impulses, and chemical messengers. This exchange of information makes us move, eat, sleep, and think.
The human brain is one of the body’s most complex organs. It enables us to think, move, feel, see, hear, taste, and smell. It controls the functioning of our body, receives sensory information, evaluates informationThe human brain is one of the body’s most complex organs. It enables us to think, move, feel, see, hear, taste, and smell. It controls the functioning of our body, receives sensory information, evaluates information, and stores information.
The brain consists of both neurons and glia cells. The neurons, which are cells housed in a cell body called a Soma, have branches which extend from them, referred to as dendrites. From these dendrites extend axons which send and receive impulses, ending at junction points called synapses. It is at these synapse points that the transfer of information takes place.
The brain and spinal cord make up the central nervous system. The brain doesn't just control your organs, but also can think and remember. That part of the brain is called the mind.
The human nervous system is composed of many different parts and performs many different functions. It is said to be the “body’s electrical wiring.” (Zimmerman) The nervous system itself is capable of collecting information, processing it, and then responding to the collected information where it then sends it to the appropriate part of the body to perform bodily functions. (Miller and Levine) The nervous system, as hinted in the name, is composed of many different nerves which are cylindrical bundles of fibers. These nerves start at the brain and proceed to branch down throughout the body. (Zimmerman) The human nervous system is made up of two main zones; The Central Nervous System and The Peripheral Nervous System. These two main categories are interdependent and work together to maintain homeostasis internally and externally. (Kinser)