Which statement concerning receptors is correct? A) They may be either a specialized ending of an afferent neuron or a special cell closely associated with the peripheral ending of an afferent neuron. B) They are present for every modality in the environment. C) When stimulated, they bring about opening of K⁺ channels in the efferent neuron membrane D) Mechanical receptors are sensitive to varying amounts of heat

Question

Quizplus · Accepted Answer

Receptors can be either a specialized ending of an afferent neuron or a special cell that is closely associated with the peripheral ending of an afferent neuron. Answer: B This statement is not correct. Receptors are not present for every modality in the environment; instead, they are specific to different types of stimuli, such as touch, temperature, or light. Answer: C This statement is not correct. Stimulation of receptors does not bring about the opening of K⁺ channels in the efferent neuron membrane. Answer: D This statement is not correct. Mechanical receptors are sensitive to mechanical stimuli, such as pressure, vibration, or stretch, and are not sensitive to heat.

Which Statement Concerning Receptors Is Correct