Anatomy and Physiology - A&P 1 > EXAM > Penn Foster Anatomy & Physiology Study Guide | 100% Correct Answers | Verified | Latest 2024 Version (All)
Penn Foster Anatomy & Physiology Study Guide | 100% Correct Answers | Verified | Latest 2024 Version
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The nervous system is the body's - ✔✔control center The central nervous system consists of - ✔✔brain and spinal cord and their associated structures The peripheral nervous system is comprise... d of - ✔✔the nerves traveling from the brain or spinal cord to the target organs and back The somatic nervous system carries out - ✔✔conscious activities, such as walking, eating, etc The autonomic nervous system performs functions that - ✔✔don't require conscious thought, such as breathing, blood pressure, and heart rate The basic structural and functional unit of the nervous system is the - ✔✔neuron or nerve cell 2 Important types of neurons are - ✔✔sensory neurons and motor neurons Sensory neurons carry signals of - ✔✔touch, taste, etc to the brain Motor neurons carry instructions from - ✔✔the brain to the muscles, causing them to move The primary purpose of a neuron is to - ✔✔transmit an electrical signal that acts either to signal other neurons or to cause a change in a target organ, such as a muscle or gland Depolarization is - ✔✔the change in membrane potential that occurs when a nerve is stimulatedRepolarization is - ✔✔the reestablishment of normal resting membrane potential [Show More]
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