Somatosensory Pathways and Thalamus Quiz
15 Questions
1 Views
3.6 Stars

Somatosensory Pathways and Thalamus Quiz

Created by
@FastObsidian6744

Questions and Answers

Which laminae are heavily involved in the mediation of information associated with nociception?

Lamina 1 & 2

Which neuropeptide is primarily released by first-order C fibers at the synaptic junction?

Substance P

Which tract is responsible for providing our immediate experience of pain due to its quicker fibers with heavier myelination?

Spinoreticular Tract

What is the first step in the process of nociception?

<p>Transduction</p> Signup and view all the answers

Which structure carries information on pain, temperature, and crude touch to terminal synapses in the brain?

<p>Spinothalamic tract</p> Signup and view all the answers

What is the role of interneurons in the process of nociception?

<p>Facilitating or inhibiting nociceception at the PNS or CNS</p> Signup and view all the answers

What is the primary function of the Reticular Formation RN and Raphe Nuclei PVG in the context of nociception?

<p>Inhibiting action potentials associated with noxious stimuli</p> Signup and view all the answers

Which structure is primarily associated with visceral, emotional, and autonomic modulation in the context of nociception?

<p>Periaqueductal Gray (PAG) and Tectum</p> Signup and view all the answers

Why is visceral nociception experienced as a diffuse and non-descript sensation of pain?

<p>Due to the involvement of archi-paleo processing in the dorsal horn</p> Signup and view all the answers

Which tract is responsible for transmitting nociceptive and discriminatory information from the neospinothalamic tract to the sensory cortex?

<p>Archispinothalamic tract</p> Signup and view all the answers

What is the function of the Gate Control Theory in pain modulation?

<p>To acutely reduce the magnitude of nociceptive action potential before reaching the brain</p> Signup and view all the answers

Which structures are heavily involved in mediating descending inhibition system and nociception at the PAG?

<p>Paleo tract, limbic nuclei, archispinothalamic tract</p> Signup and view all the answers

What is one of the functions of the periaqueductal gray matter?

<p>Modulating and propagating pain</p> Signup and view all the answers

Which neurotransmitters are released at the dorsal horn to inhibit primary and second order neurons?

<p>Norepinephrine and serotonin</p> Signup and view all the answers

What is the primary mechanism of central sensitization?

<p>Homosynaptic potentiation</p> Signup and view all the answers

More Quizzes Like This

Neural and Somatosensory Pathways Quiz
24 questions
Somatosensory System Organization Quiz
10 questions
Sensory Pathways in the Human Body
30 questions
Neuroanatomy Module: Somatosensory Pathways
40 questions
Use Quizgecko on...
Browser
Browser