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Nerves
...  are called voluntary or skeletal muscles. It also has receptors in the skin that detect information inside and around the body. The Autonomic Nervous System is the one responsible for connecting the brain stem and spinal cord with the internal organs. This part regulates the processes in our body that does not require any conscious effort to operate, such as, blood pressure, breathing, heart  ...

Cerebrum
...  come from the primary motor cortex and the frontal lobe motor area of the brain, where these functions are planned. The upper motor neurons of the primary motor cortex transmit axons to the brain stem and the spinal cord which, in turn, synapses with the lower motor neurons. The cerebrum is also responsible for sensory processing. The cerebral cortex in the cerebrum is responsible for  ...

Mesencephalon
...  the neural tube which will later turn into 3 vesicles: forebrain, midbrain and hindbrain. The middle vesicle mentioned beforehand is the so-called mesencephalon. It is considered to be a part of the brain stem in mature human brains, and becomes among the less differentiated ones. Mesencephalon is composed of two regions: the tectum (roof), and the tegmentum (covering). Within the mesencephalon  ...

Reticular Formation
...  reticular formation pertains to a complex network of nerve fibers and nuclei within the brain stem. Its network aids in creating the reticular activating system, the one that is responsible for the cerebrum. This network is extended until the spinal cord, the pons, midbrain, thalamus and hypothalamus. Most of the structures in the brain send and receive fibers which go up and down within the  ...

Spinal Cord
...  of these undergo decussation, and the remaining percentage makes up the anterior corticospinal tracts. The remaining nerve tracts are called the extrapyramidial tracts. These originate in the brain stems. A variety of synaptic connections cause the cerebral cortex, the cerebellum, and the basic nuclei to produce motion indirectly.  ...


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