A patient receives a painful pinprick, but the nurse asks which event represents conscious perception rather than sensory reception. Which answer is correct?
Correct answer: C. The cerebral cortex recognizes the pain
- A. Skin receptors detect tissue injury
- B. A sensory neuron carries impulses inward
- C. The cerebral cortex recognizes the pain
- D. A spinal reflex causes muscle contraction
Explanation
Sensory reception begins when receptors detect a stimulus, whereas conscious perception occurs when the cerebral cortex interprets it. A spinal reflex may occur before the person consciously identifies the pain.
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About Nervous System and Special Senses
The nervous system covers neurons, neuroglia, nerve impulses, synapses, reflex arcs, and the organization of the central and peripheral nervous systems. It also explains the autonomic divisions and the receptors and pathways for vision, hearing, balance, taste and smell, distinguishing sensory reception from conscious perception.
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