Sensory Pathways 0.0 / 5 ? MedicineNervous SystemSensationReceptorsUniversityNone Created by: AnnaLouiseCreated on: 08-12-13 21:42 How is the modality of a stimuli represented by the electrical 'code' generated by the peripheral receptors in response to a stimuli? By different types of sensory receptor and different sensory pathways 1 of 14 What effect does an increase in intensity have on action potentials? It increases the frequency of the action potentials 2 of 14 What is the function of the dorsal horn of the spinal cord? Sensory 3 of 14 What information does the dorsal column system NOT convey? Pain 4 of 14 The gracile nucleus conveys sensory information from the? Lower limbs and lower trunk 5 of 14 The dorsal column and anterolateral system both have their second synapse with what? VPL nucleus 6 of 14 Where is the VPL nucleus located? Thalamus 7 of 14 The spinoreticular system shares what feature in common with the anterolateral system? They both have their first synapse with the lamina V cell in the spinal cord 8 of 14 Where are receptor fields smallest? Where the most discrimination is required 9 of 14 As the sensory pathways ascend, the receptor fields of the neurones become...? More complex and larger 10 of 14 What mechanism do the centre/surround receptor fields exhibit? (These receptor fields are present in the dorsal column nuclei and thalamic neurones Lateral Inhibition 11 of 14 Which Brodmann's area is not present in the primary somatic sensory cortex? 4 12 of 14 In the homunculus, the body areas are represented with regards to what? Tactile Sensitivity 13 of 14 Brodmann's areas 1 and 3b recieve information from where? Skin receptors 14 of 14
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