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Nerves

...  of connective tissues called epineurium. There are three categorizations for nerves: Afferent nerves, efferent nerves and mixed nerves. Afferent Nerves main purpose is to conduct signals from the Sensory neurons to the central nervous system while Efferent Nerves essentially conducts signals from the central nervous system. Mixed Nerves are a combination of these two; they conduct both  ...

Testes

...  this that the testes are considered endocrine glands as well as exocrine glands. They are capable of producing androgens and spermatozoa which qualifies them for both systems. It is both motor and Sensory neurons which are necessary for the proper functions of the testes. It is the testicular nerves which are able to innervate the testes with both of these requirements. Innervation is slightly  ...

Spinal Cord

...  of the spinal cord is made up of neuroglia, unmyelinated association neurons and nerve cell bodies. The white matter on the other hand is composed of myelinated fibers that brings the motor and Sensory neurons. At the core of the gray matter, it will form the letter H. It has paired horns that extend posteriorly, and it is called the posterior horns. On the other hand, the horns that  ...