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Nerve impulses generated by nociceptors are interpreted by
the brain as
a. fine touch.
b. heat.
c. pain.
d. pressure.
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- When arm muscles hurt after heavy exercise, the pain is detected bya. neurotransmitters.b. interoceptors.c. associative neurons.d. exteroceptors.Decreased sensitivity to a continued stimulus is calleda. adaptation. d. conduction.b. projection. e. phantom pain.c. translation.Nociceptors respond toa. changes in temperature at the site of the receptor.b. compression, bending, or stretching of cells.c. painful mechanical, chemical, or thermal stimuli.d. light striking a receptor cell
- Hot and cold stimuli are detected bya. free nerve endings.b. proprioceptors.c. end bulbs.d. lamellar corpuscles.e. tactile corpuscles.A cutaneous nerve to the hand is severed at the elbow. The distal endof the nerve at the elbow is then stimulated. The person reportsa. no sensation because the receptors are gone.b. a sensation only in the region of the elbow.c. a sensation “projected” to the hand.d. a vague sensation on the side of the body containing the cutnerve.Mechanoreceptors involved in maintaining muscle tone andbody posture are calleda. cutaneous receptors.b. pain receptors.c. proprioceptors.d. statocysts.
- 40) Which tobe is primarily responsible for the sense of touch and pain?a. Temporal. b. Parietal. c. Frontal. d. Occipital. 41. During depolarization the internal voltage of a neurona. increases.b. decreases.c. remains constant.The lowest level of stimulation that a person can consciously detect 50 percent of the time the stimulation is present is called a. absolute threshold. c. sensation. b. just noticeable difference. d. sensory adaptation.Which of the following pathways carries fibers that control fine touch, vibration, proprioception, and pressure? A. Dorsal column B. Spinothalamic C. Corticospinal D. Reticulospinal
- A structure or cell that collects sensory information is aa. motor neuron.b. receptor.c. neurolemmocyte.d. ganglion.The anterior spinocerebellar tract conducts signals about A. pain from the upper limbs. B. pain from the lower limbs. C. proprioception from the upper limbs. D. proprioception from the lower limbs.Tonic receptors a.are fast-adapting. b.do not fire continuously to a sustained stimulus. c.produce action potentials at a greater frequency as the generator potential is increased. d.are described by all of these.