Podcast
Questions and Answers
What is the main difference between the touch and pain pathways in the spinal cord?
What is the main difference between the touch and pain pathways in the spinal cord?
- Touch pathway ascends ipsilaterally while pain pathway ascends contralaterally (correct)
- Touch pathway projects to the cerebellum while pain pathway projects to the thalamus
- Touch pathway uses A-beta fibers while pain pathway uses A-delta and C fibers
- Touch pathway synapses in the dorsal horn while pain pathway synapses in the ventral horn
What is the primary role of proprioception?
What is the primary role of proprioception?
- Transmitting signals from the skin to the spinal cord
- Providing a sense of limb position and movement (correct)
- Sensing heat and cold
- Encoding tissue damage
What condition did Ian Waterman have that resulted in a loss of proprioceptive sense?
What condition did Ian Waterman have that resulted in a loss of proprioceptive sense?
- Damage to the vestibular system in his inner ear
- Stroke affecting the somatosensory cortex in his brain
- Spinal cord injury affecting the dorsal column-medial lemniscus pathway
- Neuropathy affecting the sensory neurons in his joints and skin (correct)
Which type of sensory receptors are responsible for proprioception?
Which type of sensory receptors are responsible for proprioception?
How are the touch/proprioception and pain pathways linked in the brainstem?
How are the touch/proprioception and pain pathways linked in the brainstem?
What are the three main functions of somatosensory receptors in the body?
What are the three main functions of somatosensory receptors in the body?
Which type of skin receptors are responsible for detecting warmth, cold, pressure, vibrations, stretch, itch, and pain?
Which type of skin receptors are responsible for detecting warmth, cold, pressure, vibrations, stretch, itch, and pain?
Which areas of the skin have higher haptic acuity (ability to perceive touch sensations)?
Which areas of the skin have higher haptic acuity (ability to perceive touch sensations)?
How do mechanoreceptors in the skin respond to pressure or touch stimuli?
How do mechanoreceptors in the skin respond to pressure or touch stimuli?
What is the difference between 'fast adapting' and 'slow adapting' mechanoreceptors in the skin?
What is the difference between 'fast adapting' and 'slow adapting' mechanoreceptors in the skin?
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