Search
- Filter Results
- Location
- There are no locations to filter by
- Classification
- Include attachments
- https://chem.libretexts.org/Workbench/Pick_Your_Poison%3A_Introduction_to_Materials_Toxicology/36%3A_Sensory_Systems/36.02%3A_Vision-_The_RetinaThe iris is the colored portion of the eye that surrounds the pupil and along with local muscles can control the size of the pupil to allow for an appropriate amount of light to enter the eye. Althoug...The iris is the colored portion of the eye that surrounds the pupil and along with local muscles can control the size of the pupil to allow for an appropriate amount of light to enter the eye. Although some of the images used here will simplify the receptive field to one cell in the center and a couple in the surround, it is important to remember that photoreceptors cover the entire surface of the retina, and the receptive field is two-dimensional.
- https://chem.libretexts.org/Workbench/Pick_Your_Poison%3A_Introduction_to_Materials_Toxicology/36%3A_Sensory_Systems
- https://chem.libretexts.org/Workbench/Pick_Your_Poison%3A_Introduction_to_Materials_Toxicology/36%3A_Sensory_Systems/36.05%3A_Touch-_The_SkinMeissner corpuscles are located in the dermis near the epidermis, and Merkel cells are located in the epidermis, near the surface of the skin. ‘Mechanoreceptors’ by Casey Henley is licensed under a Cr...Meissner corpuscles are located in the dermis near the epidermis, and Merkel cells are located in the epidermis, near the surface of the skin. ‘Mechanoreceptors’ by Casey Henley is licensed under a Creative Commons Attribution Non-Commercial Share-Alike (CC BY-NC-SA) 4.0 International License.
- https://chem.libretexts.org/Workbench/Pick_Your_Poison%3A_Introduction_to_Materials_Toxicology/36%3A_Sensory_Systems/36.07%3A_TasteThe front of the tongue has the lowest threshold for sweet, salt, and umami tastes; the side of the tongue has the lowest threshold for sour tastes, and the back of the tongue has the lowest threshold...The front of the tongue has the lowest threshold for sweet, salt, and umami tastes; the side of the tongue has the lowest threshold for sour tastes, and the back of the tongue has the lowest threshold for bitter tastes. ‘Taste Map’ by Casey Henley is licensed under a Creative Commons Attribution Non-Commercial Share-Alike (CC BY-NC-SA) 4.0 International License.
- https://chem.libretexts.org/Workbench/Pick_Your_Poison%3A_Introduction_to_Materials_Toxicology/36%3A_Sensory_Systems/36.04%3A_Somatosensory_Systemsthe skin for touch) via the spinal nerves, and one travels into the spinal cord at the dorsal horn via the dorsal root. The groups, unfortunately, have different names depending on if the axons come f...the skin for touch) via the spinal nerves, and one travels into the spinal cord at the dorsal horn via the dorsal root. The groups, unfortunately, have different names depending on if the axons come from the skin (Aα, Aβ, Aδ, and C fibers; examples are touch or pain) or the muscles (Group I, II, III and IV fibers; example is proprioception).
- https://chem.libretexts.org/Workbench/Pick_Your_Poison%3A_Introduction_to_Materials_Toxicology/36%3A_Sensory_Systems/36.01%3A_General_Principles_of_Sensory_SystemsThe receptive field for a neuron is the region of the retina or skin where a stimulus (light or touch) will evoke a response in the neuron. In general, the route sensory information takes from the per...The receptive field for a neuron is the region of the retina or skin where a stimulus (light or touch) will evoke a response in the neuron. In general, the route sensory information takes from the periphery to the central nervous system is similar among most of the systems. It’s common to hear that sensory information “relays” through the thalamus on the way to the cortex (for example, in the paragraph above).
- https://chem.libretexts.org/Workbench/Pick_Your_Poison%3A_Introduction_to_Materials_Toxicology/36%3A_Sensory_Systems/36.06%3A_Touch-_Central_ProcessingThe feet and legs are represented in the medial superior region of the cortex; the face is represented on the lateral side of the cortex; the hand and fingers fall in between. ‘Somatotopic map’ by Cas...The feet and legs are represented in the medial superior region of the cortex; the face is represented on the lateral side of the cortex; the hand and fingers fall in between. ‘Somatotopic map’ by Casey Henley is licensed under a Creative Commons Attribution Non-Commercial Share-Alike (CC BY-NC-SA) 4.0 International License.
- https://chem.libretexts.org/Workbench/Pick_Your_Poison%3A_Introduction_to_Materials_Toxicology/36%3A_Sensory_Systems/36.03%3A_Vision-_Central_ProcessingSince the axons from the nasal retina cross to the opposite side of the nervous system but the temporal retina axons do not, this leads to the brain processing input from the contralateral (opposite s...Since the axons from the nasal retina cross to the opposite side of the nervous system but the temporal retina axons do not, this leads to the brain processing input from the contralateral (opposite side) visual hemifield.
