Which one is not the best way to describe necessary "threshold" as "sensitivity" declines with age? Individuals with lower sensitivity also have a lower threshold or tolerance for stimulation. As sensitivity goes down, the threshold must be higher to compensate. Individuals with a low-sensitivity, need more stimulation than people with high-sensitivity. none of the above
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- A nurse observes that a patient who has cataracts is sittingcloser to the television than usual. The nurse would interpret that the etiologic basis of this sensory problem is an altera-tion in: a. Environmental stimulib. Sensory receptionc. Nerve impulse conductiond. Impulse translationCondtions that compress peripheral nerves differentially affect nerve fibres over time, causing loss of sensorimotor function. What is the correct order of loss (first to last)? pain & temperature, touch, vibration, and joint position sense joint position sense, pain & temperature, touch, and vibration pain & temperature, vibration, joint position sense and touch joint position sense, touch, vibration and pain & temperature touch, vibration, joint position sense, pain & temperatureWhich of the following can readily adapt to a continuous stimulus! baroreceptor somatic pressure receptor Osmoreceptor somatic pain receptor visceral pain receptors
- You conduct an experiment in the lab to determine the adaptation rate of different touch receptors. Based on the data shown here, what can you conclude? (the top trace for each receptor is the stimulus and the bottom trace for each receptor is the receptor response) ||||| Receptor A Receptor B ||||||||||||—–—– Receptor A is slow adapting and receptor B is slow adapting Receptor A is fast adapting and receptor B is fast adapting Receptor A is fast adapting and receptor B is slow adapting Receptor A is slow adapting and receptor B is fast adaptingDescribe sensory adaptation and then give one example of a case in which one might interpret this to be an advantage and one that could be considered a disadvantaged.What reason can you give for the difference in sensitivity between the fingertip and the back of the neck? Why is one area more sensitive than the other?Does the difference in sensitivity between the fingertip and the back of the neck help our bodies to maintain homeostasis? If so, in what way?
- As light hits the rods and cones, they release molecules. This is interpreted as light by the brain. None of these is correct More neurotransmitter molecules More opsin molecules More rhodopsin molecules Fewer neurotransmitter moleculesExplain why individuals are often so insensitive to their own body and breath odor. How does sensory adaptation contribute to this insensitivity? How have advertisers tried to capitalize on this situation?Which receptors fire at the onset and the offset of stimulation? Select all that apply. Select one or more: Tendon organ Thermoreceptors Type II cutaneous mechanoreceptor (Ruffini corpuscle) Type 1 cutaneous mechanoreceptor (Merkel disc) Lamellated (Pacinian) corpuscle Hair root plexus Corpuscle of touch (Meissner corpuscle)
- Our ability to hear is dependent on keeping calcium low inside hair cells. True FalseWhich of these is TRUE about the fovea? The fovea contains the blind spot, which does not have any receptors. The fovea has the best sensitivity after dark adaptation has finished. The fovea does not contain any rods. The fovea has the most convergence.How can we summarize these results with how coffee affects a person’s reflex?