جستجو در تالارهای گفتگو
در حال نمایش نتایج برای برچسب های 'human'.
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Brain and Cervical Spinal Cord A rear view of the skull reveals the brain and the cervical spinal cord, which function together as the central nervous system. The remarkable apparatus uses motor neurons to control the body's many muscles and enables humans to perform myriad physical activities
