BIO 2100 2B Nervous System all correct.

Nervous System correct answer A coordinating system of the body composed of highly specialized cells for conducting nerve impulses to a center so responses can be made The nervous system provides a control for the _______ activities of the body correct answer Rapid What does the central nervous system (CNS) compose of? correct answer Brain and Spinal Cord What does the peripheral nervous system (PNS) compose of? correct answer Nerves Sensory receptors detect stimuli from the external or internal environment and send nerve impulses to the ____ correct answer CNS The ____ processes the information, determines the appropriate response, and sends nerve impulses to effector organ correct answer CNS What are effector organs? correct answer Smooth muscles, skeletal muscles, and glands that carry out the response What two principal types of cells do the nervous system compose of? correct answer Neuron and neuroglia (support neurons) Extensions of the plasma membrane that increase the surface area available to receive stimuli correct answer Dendrite Contains the nucleus and controls the metabolic activity of the neuron correct answer Cell body or soma Connects the cell body to the axon correct answer Axon Hillock Insulating substance which allows axons to conduct impulses faster correct answer Myelin What cells produce myelin? correct answer Glial Cells What glial cells produce myelin in the CNS? correct answer Oligodendrocytes What glial cells produce myelin in the PNS? correct answer Schwann Cells Gaps between segments of myelin correct answer Nodes of Ranvier Swellings at the end of the axon correct answer Synaptic terminals