. Biology; the story of living things. re$ponss-«. association syn neixrorL ' â muscle fibers Diagram of reflex arcs. Explain why this is often called the "physiological unit of the nervous ; which receive the stimulus and transmit it via the axon to the spinal cord where a synapse with the dendrites of an effector cell occurs. The impulse is then transmitted by means of the hitter's axon to the muscle or gland cell. Reflex arcs generally require one or more adjuster neurons in the circuit between the receptor and effector cells. Such adjuster cells are usually located in the


. Biology; the story of living things. re$ponss-«. association syn neixrorL ' â muscle fibers Diagram of reflex arcs. Explain why this is often called the "physiological unit of the nervous ; which receive the stimulus and transmit it via the axon to the spinal cord where a synapse with the dendrites of an effector cell occurs. The impulse is then transmitted by means of the hitter's axon to the muscle or gland cell. Reflex arcs generally require one or more adjuster neurons in the circuit between the receptor and effector cells. Such adjuster cells are usually located in the spinal cord or in the brain. Even so brief a discussion of reflexes cannot be concluded without mention of the compound reflex arcs which are formed by a single receptor neuron and two or more effectors that may be widely sepa- rated in the body, or l)y two or more receptors and a single effector. Varying complexities of these latter types are made by the inter-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hunter, George W. (George William), 1873-1948; Walter, Herbert Eugene, b. 1867; Hunter, George W. (George William), 1902-. New York, Cincinnati [etc. ] American book company


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