In this section we will look more closely at how the nervous system converts physical and chemical signals such as touch, taste, light, sound, and others into electrical signals that can be interpreted and processed by the central nervous system in a manner that allows us to perceive them. Not all stimuli are used only for homeostasic maintenance, with sensory input playing a role in all kinds of reflex and conscious responses as well. Any action potentials generated are then carried along neurons, and various forms of electrical signals at synapses and neural networks are integrated for decision making purposes. The nervous system is well adapted to carry out this specific function, by converting various internal and external stimuli into electrical signals in the form of post-synaptic potentials or action potentials. In order to respond and maintain homeostasis, we must be able to detect that a change has happened in the first place. Recall that the nervous system often plays important roles in homeostasis, including our ability to respond to both our internal and external environment. Chapter 9: The Lymphatic System and Immunityĥ3. Endocrine Homeostasis and Integration of Systemsĥ9. Introduction to the Respiratory Systemħ0. Reproductive Structures and Functions Chapter 3: Homeostasis and Feedback LoopsĢ3. Introduction to the Integumentary SystemĢ4. Integumentary Structures and Functionsģ9. Nervous System Levels of OrganizationĤ2. Cardiovascular Structures and FunctionsĤ3. Cardiovascular Levels of OrganizationĤ5. Cardiovascular Integration of Systems
Chapter 2 Part 4: Higher Order Structuresġ8. Organ Systems, The Whole Body, and Populations Chapter 2 Part 1: Levels of Organization - Introductionġ5. Cell Division and Control of Cell Number Chapter 1: Introduction to Anatomy and Physiology
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