The _______ system delivers touch information to the brain.
Answer: dorsal column
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Touch and Pain
- The somatosensory cortex has _________ organization.
- Touch in the receptive field _____, touch outside the receptive field________, touch in the surround ______.
- S1 receives touch information from the _______ side of the body and S2 receives its main input from _____ and maps _____ sides of the body.
- Name the 2 somatosensory cortices.
- Two-point stimuli are perceived as one when many ________ neurons converge onto a single __________ neurons, which creates a ________ receptive field.
- Where are sensations perceived?
- Where do all sensory pathways synapse before arriving at the sensory cortex?
- Where do fine touch, vibration, and proprioception cross the midline?
- Where do pain, temperature, and coarse touch cross the midline?
- Receptors send axons via the ________ of the spinal chord where they synapse on ________ in the medulla.
- The ________ of activated sensory neurons conveys information about stimulus location.
- The ________ system detects body sensations including touch and pain.
- Stimulus to pacinian corpuscles produces a ________ electrical potential. When the potential is big enough, the receptor reaches ______ and fires an action potential.
- _____ & _____ are slow-adapting receptors.
- ____ & ______ are fast-adapting receptors.
- Hair displacement open ________ sensitive channels on the dendrites of sensory neurons wrapped around the hair follicle.
- All 3 cutaneous receptors follow the rules of _________.
- Thermoreceptors for _____ are stimulated by ______.
- Nociceptors for _____ are stimulated by _____.
- Mechanoreceptors for ______ are stimulated by _____.
- T/F: Different sensory modalities are kept separate and processed by the same brain region.
- Why can the brain recognize distinct senses?
- What is the energy that all senses use?
- ______ occurs when the cerebral cortex interprets the meaning of sensations.