1. Use the response of a pain receptor stimulated by a strong acid to illustrate the law of specifc nerve energies. 2a. Describe how the intensity of stimulation is encoded by a receptor, such as a hair cell. 2b. Contrast that with how the intensity of stimulation is encoded by the associated somatosensory neuron.

29 Which of the following sensory cells use the firing of action potentials as their method of inducing neurotransmitter release? a. Photoreceptor cells b. Hair cells in the cochlea c. Bipolar cells d. Taste receptor cells e. Olfactory receptor cells

20. Select from the list below the one coding requirement that is used in each of the following three scenarios: 1) the knee-jerk reflex, 2) reduction of pain perception by rubbing the injured area, and 3) high frequency sound localization. A. Inhibitory interneurons. B. Second messenger pathways. C. Coincidence detection. D. None of the answers. E. Rapidly adapting neurons.

Which one of the following statements about photoreception is true? a. Light detection is initiated by the absorbance of light (a photon) by a photopigment molecule. b. Light detection is synonomous with vision. c. Light detection is always initiated in a rod photoreceptor located in the retina. d. Only light in the visible range (between 400 and 700 nm wavelength) can be detected by animals. e. None of the above answer choices (neither A, nor B, nor C, nor D) is true.

Which of the following structures does not receive direct input from retinal ganglion cells?     a. Primary visual cortex     b. The suprachiasmiatic nucleus (SCN) in the hypothalamus     c. The superior colliculus in the tectum     d. The lateral geniculate nucleus (LGN) in the thalamus   The Glossopharyngeal nerve (cranial nerve IX) is a “mixed nerve,” meaning that it carries sensory and motor information. One of the functions of this nerve is carrying taste information from the caudal third of the tongue. The fibers that carry this information in the glossopharyngeal nerve are classified as which component type?     a. Special efferent     b. Special afferent     c. General visceral efferent     d. General somatic afferent

1. Explain the physiological basis for why sensitive skin areas have smaller two-point threshold compared to less sensitive skin areas and how does the sensitivity of a skin area correlate with the size of its representation in the somatosensory homunculus?

What is myelin? A. Projection on a neuron cell body that is sensitive to stimuli B. Another name for the cell body of a neuron C. A membrane wrapping on an axon that increases the speed of action potential propogation D. A long, slender process of a neuron that is capable of conducting nerve impulses

Plz answer correctly asap

1. Define the two-point threshold. Would the two-point threshold be smaller on thefingertips or the back of the neck? and  Briefly describe the three-neuron pathway of fine touch sensation to the brain.

Which experimental technique would be most helpful in mapping the function of the cells in the primary motor cortex?     Select one: a. electrical stimulation b. cortical lesions c. Golgi stain d. intracellular recording  e. immunohstochemistry/immunocytochemistry