Much like the mice that we've talked about in class, the rodent-like Pokemon Rattata can communicate with ultrasonic vocalizations - it can generate and detect sounds in the 20 - 50 kHz range. Which of the following statements is most likely to be true about Rattata's auditory system, if you assume that the overall organization is the same as that of other mammals? O a. Neurons in the superior colliculus will fire when a 30 kHz sound is heard O b. A 30 kHz sound will cause action potentials within hair cells Its primary auditory cortex will contain neurons that fire when a 30 kHz tone is heard o d. The basilar membrane will be responsive only to the set of frequencies that ours is (20 Hz - 20 kHz)
Anatomy and Physiology of Special Sensory Organs
Sensory organs can be labeled as special sensory structures that permit sight, hearing, odor, and flavor. Sensory structures permitting proprioception, touch, thermal, and pain perception can be classified as more advanced sensory organs. The sensory neurons are trained to find out modifications in the external and internal conditions so that a person's body can react to that change. A stimulus is the first signal that is recognized by any sensory receptor of the body. Stimulus is an impulse generated when there is a change in the surroundings of a person. For example, a heated environment will alert the brain through the thermal sensory organs and generate a reflex accordingly.
Sensory Receptors
The human sensory system is one of the most complex and highly evolved structures, which processes a myriad of incoming messages. This well-coordinated system helps an organism or individual to respond to external stimuli, appropriately. The sensory receptors are an important part of the sensory system. These receptors are specialized epidermal cells that respond to external environmental stimuli. These receptors consist of structural and support cells that form the peripheral unit of the receptor and the neural dendrites which receive and detect the external stimuli.
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