Tutorial - Week 5 Content Flashcards
The total surface area of somatosensory cortex dedicated to different regions of the body is determined by which of the following?
a) the type of mechanoreceptors that innervate the region
b) the number of mechanoreceptors that innervate the body region
c) the surface area of the body region
d) how thin the skin is in the region
e) the innervation density of the body
E
Which of the following classes of neurone have axons that terminate in the thalamus?
a) touch receptors
b) spinothalamic neurones
c) the thalamospinal tract neurones
d) polymodal nociceptors
e) thalamocortical neurones
B
The class of provides information about the rate of application of a low threshold mechanical stimulus would be an example of which of the following?
a) very rapidly adapting mechanoreceptor
b) slowly adapting mechanoreceptor
c) rapidly adapting mechanoreceptor
d) slowly adapting cutaneoreceptor
e) rapidly adapting thermoreceptor
C
Which of the following classes of neurone is normally spontaneously active?
a) rapidly adapting low threshold mechanoreceptors
b) polymodal nociceptors
c) slowly adapting low threshold mechanoreceptors
d) warm thermoreceptors
e) high threshold mechanoreceptors
D
The axons of the second order neurones in the thermoreceptive pathway cross the midline at which of the following locations?
A
Humans can reliably describe both the duration and magnitude of low intensity mechanical stimuli applied perpendicular to the skin. What are the primary sensory neurones that are responsible for this ability and how do they encode the duration and magnitude of different stimuli?
What are the two pain sensations that arise from a mechanical injury of the skin and why do they differ in time course and quality?
What are the two pain sensations that arise from a mechanical injury of the skin and why do they differ in time course and quality?
