where is it located?
It is located in the head, usually close to the sensory organs for senses such as vision.
Brain
It is located in the head, usually close to the sensory organs for senses such as vision.
what part of the brain controls cranial nerves Central nervous system how are these nerves named? With Roman numerals I–XII what is the system you mentioned above? It is the part of the nervous system consisting primarily of the brain and spinal cord. can you explain this cord? The spinal cord is a long, thin, tubular structure made up of nervous tissue, which extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column. what are its divisions? Six to eight motor nerve rootlets branch out of right and left ventro lateral sulci in a very orderly manner. when was the above mentioned number system introduced? From the 14th century what is its origin? It originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages. how does this system denote a number that does not have value? "nulla" could you tell the activities of the former mentioned organ in the nerve system mentioned above? Brains exert centralized control over a body's other organs. They act on the rest of the body both by generating patterns of muscle activity and by driving the secretion of chemicals called hormones.
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Brain [SEP] Introduction
A brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It is located in the head, usually close to the sensory organs for senses such as vision. It is the most complex organ in a vertebrate's body. In a human, the cerebral cortex contains approximately 14–16 billion neurons, and the estimated number of neurons in the cerebellum is 55–70 billion. Each neuron is connected by synapses to several thousand other neurons. These neurons typically communicate with one another by means of long fibers called axons, which carry trains of signal pulses called action potentials to distant parts of the brain or body targeting specific recipient cells.