Explain how the olfactory system functions in order to allow one to smell different odors.
Responses may vary but should include some or all of the following information: When chemical substances are inhaled, they travel in through the nostrils and up to the nasal cavity where the olfactory cilia are located. The olfactory cilia are the sensory receptors for smell. They convert the chemical substances into neural signals and then transmit these signals to the olfactory bulb, which is located at the base of the brain. The olfactory cilia then relay the neural signals to the olfactory cortex and other areas of the brain. Responses may vary but should include some or all of the following information: When chemical substances are inhaled, they travel in through the nostrils and up to the nasal cavity where the olfactory cilia are located. The olfactory cilia are the sensory receptors for smell. They convert the chemical substances into neural signals and then transmit these signals to the olfactory bulb, which is located at the base of the brain. The olfactory cilia then relay the neural signals to the olfactory cortex and other areas of the brain.
Explain how tactile stimuli reach the brain and how the brain is able to detect what part of the body was touched.
Responses may vary but should include some or all of the following information: Once tactile stimuli are converted into neural signals by the sensory receptors in the skin, the sensory nerves carry the signals to the spinal cord. They are then carried to the thalamus for initial processing. From the thalamus, the majority of neural signals concerning touch are relayed to the somatosensory cortex in the parietal lobe. The brain determines where the body was touched based on the location of the sensory nerves that sense the touch stimuli. Responses may vary but should include some or all of the following information: Once tactile stimuli is converted into neural signals by the sensory receptors in the skin, the sensory nerves carry the signals to the spinal cord. They are then carried to the thalamus for initial processing. From the thalamus, the majority of neural signals concerning touch are relayed to the somatosensory cortex in the parietal lobe. The brain determines where the body was touched based on the location of the sensory nerves that sense the touch stimuli.
Which of the following statements is true about sensory cells in the gustatory system?
Which of the following statements is true about the sense of smell?
Explain how the gustatory system functions in order to allow one to taste different flavors of food.
Responses may vary but should include some or all of the following information: The gustatory system is the sensory system of taste. Taste buds that contain the taste receptors are located on the tongue, in and around papillae, and on the back and roof of the mouth. The taste receptors, which are sensitive to five taste sensations (sweet, sour, salty, bitter, and umami), convert the chemicals from food into neural signals that are then carried to the thalamus before being relayed to the gustatory cortex in the frontal lobe. Responses may vary but should include some or all of the following information: The gustatory system is the sensory system of taste. Taste buds that contain the taste receptors are located on the tongue, in and around papillae, and on the back and roof of the mouth. The taste receptors, which are sensitive to five taste sensations (sweet, sour, salty, bitter, and umami), convert the chemicals from food into neural signals that are then carried to the thalamus before being relayed to the gustatory cortex in the frontal lobe.
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