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BMS Neuroanatomy Lecture 3: Spinal Cord Sensory Pathways

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BMS Neuroanatomy Lecture 3: Spinal Cord Sensory Pathways

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Questions and Answers

What is proportional to the number of sensory receptors in the somatosensory map of the postcentral gyrus?

The relative size of the cortical areas (correct)

The intensity of the pain sensation

The levels of consciousness

The sensitivity of each part of the body

Which neurotransmitter is involved in the 'rubbing it better' mechanism of pain relief?

Endorphins

Serotonin (correct)

Enkephalins

Substance P

What is the name of the pathway that originates in the peripheral receptor and terminates in the reticular formation?

Lateral spinothalamic tract

Spinothalamic tract

Anterolateral tract

Spinoreticular tract (correct)

Which neuron is the first-order neuron in the spinoreticular pathway?

Neuron 1, which originates in the peripheral receptor Signup and view all the answers

What is the function of the spinoreticular pathway in terms of levels of consciousness?

It increases the levels of consciousness Signup and view all the answers

What is the term for the ability to modify the somatosensory map of the postcentral gyrus with learning?

Neuroplasticity Signup and view all the answers

What is the name of the theory that explains the role of the brain in pain modulation?

Gate Pain Theory Signup and view all the answers

Which of the following is NOT a characteristic of the spinoreticular tract?

It is a descending pathway Signup and view all the answers

What is the function of the dorsal grey horn in the spinoreticular pathway?

It is the origin of the second-order neuron Signup and view all the answers

What is the name of the tract that is mixed with the spinoreticular tract in the lateral white column of the spinal cord?

Lateral spinothalamic tract Signup and view all the answers