University:
University of Wolverhampton
Course:
4PY019 | Pharmacy
Academic year:

2024
Views:

327

Pages:

2
Author:

Sara

1. What happens when a stimuli is received from outside the body? - receptors converts the signal into an intracellular signal (AP) - we became aware of the signal as it's on a conscious level (touch, pain / special senses) 2. What happens - receptor converts the signal into an intracellular signal when a stimulus is (AP) received from in- - we are not aware of the signal side the body? 3. What are somatic senses? simple neural receptors/complex neural receptors (e.g. touch, pain, pa) 4. What are mechanoreceptors? respond to pa, vibrations (touch), gravity + stretch 5. What are thermore- respond to changes in temp ceptors? 6. What are photore- respond to changes in light ceptors? 7. What are nocicep- respond to pain tors? 8. Where are sensa- left side of the brain tions from the right side of the body processed? 9. Where are pathways formed by? 3 neuron chain 10. What happens when the receptive fields of 3 primary neurons overlap? - primary sensory neurons converge on 1 secondary sensory neuron - the secondary sensory neuron has a large receptive field 11. 1/2 Describe the process of stimuli passing from the spinal cord (+ medulla) to the somatosensory cortex: - pain, temp + coarse touch cross the midline of the spinal cord - fine touch, vibration + proprioception pathways cross the midline in the medulla - sensory pathways synapse in the thalamus - sensations are perceived in the primary somatic sensory cortex 12. Relate the amount the amount of space on the somatosensory cortex is of space on the so- proportional to the sensitivity of the body part matosensory cortex to the body parts: 13. What are the con- - in left hand, person will feel fine but not pain + temp sequences of a le- - in right, person won't feel fine touch, but will feel pain sion in the right + temp hemisphere unilateral spinal cord? 2/2