Bio 210 chapter 11 questions and answers rated A+

Bio 210 chapter 11 questions and answers rated A+ The nervous system is? The master controlling and communicating system of the body The three functions of the nervous system are? 1. Sensory input 2. Integration 3. Motor output The sensory input gathers information by the internal and external sensory receptors The integration function processes and interprets the sensory input The motor output function activates the effector organs (muscles and glads) and produces the appropriate response The central nervous system is composed of? The brain and spinal cord of the dorsal body cavity The peripheral nervous system is composed of? Spinal and cranial nerves The peripheral nervous system has two functional divisions known as? Sensory and motor divisions Sensory is also known as Afferent Division Motor is also known as Efferent division The somatic nervous system conducts impulses from the Central Nervous System to Skeletal muscle Autonomic Nervous System consists of visceral motor nerve fibers, and regulates smooth and cardiac muscles, and glands In the autonomic nervous system there are two functional subdivisions. What are they? Sympathetic and Parasympathetic subdivisions Neuroglia cells small cells that surround and wrap delicate neurons Neurons or nerve cells are excitable cells that transmit electrical signals Four main neuroglia that support the Central Nervous System neurons are? Astrocytes, Microglial cells, ependymal cells, and oligodendrocytes Astrocytes are? most abundant and versatile glial cells Astrocytes Support and brace neurons Microglial cells are small, ovoid cells with thorny processes that touch and monitor neurons Ependymal Cells Range in shape from squamous to columnar and line central cavities of the brain and spinal column