Biology Essay Essays

Biology Essay Essays Biology Essay Paper Biology Essay Paper In the biological perspective, scientist often view the nervous system to be the most complex and significant body system in the human anatomy basically because of its function for the body and its processes. Indeed, sustaining damages to the nervous system has dangerous consequences for the body including seizures, paralysis, and comatose and even death. In this aspect, this paper aim to discuss and critical elaborate the scientific facts about the human nervous system and its anatomy. The human brain is basically part of the nervous system of the human anatomy as its controls, regulates and maintains the nervous functions and processes of the human body. Biologically, the brain is a complex concentration of nerve cells and fibers that is able to process and formulate significant number of nerve activities characterized by electrical impulses. The brain’s anatomy is basically divided into three regions classified to its characteristics and functions namely the cerebrum, cerebellum, and the brain stem. The cerebrum handles all of the distinctly human activities such as speaking, reading, writing and others while the cerebellum handles the aspects of balance and body and muscle coordination. On the other hand, the brain stem serves as the communication port for the brain and the spinal cord as it contains billions of control points for nerve impulses. The nervous system is also composed of numerous nerve cells which are characterized and classified according to their functions namely the sensory or afferent and the motor or efferent. The sensory nerve cells are the medium for inward-traveling impulses wherein they transmit information from the senses to the brain. On the other hand, the motor nerve cells relay informations from the brain to the affected muscle regions for the appropriate body reaction to the impulse. Between the brain and the nerve cells, the spinal cord acts as the expressway for the transmissions and relays of impulses and their respective nervous reactions. Anatomically, the brain connects the brain to the collective nerve cells of the human body as it stretches to the back of the body. This serves as the master nerve tract and consists of millions of nerve fibers bundled together, somewhat like many small threads making up a large rope partially interwoven in the backbone for support.