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Questions

BIOL 251 Module 6 Problem Set

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Classify the following based on the area of the spinal cord that is involved in the input or output signal.   1: A burn on the skin 2: Chest pain from a heart attack 3: Efferent innervation of the biceps brachii 4: Efferent innervation of GI tract smooth muscle

Options
A.Ventral horn
B.Lateral horn
C.Dorsal horn
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Step-by-Step Analysis
To approach this matching question, I’ll categorize each item by the spinal cord region that handles the signal: input (sensory) signals enter via the dorsal horn, while output (motor) signals exit via the ventral horn, and autonomic (visceral) motor signals originate in the lateral (intermediolateral) horn. 1) A burn on the skin - This is a somatic sensory input item. The signal from the skin travels into the dorsal (posterior)......Login to view full explanation

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