10 Questions
What is the primary function of the spinothalamic pathway in the somatosensory system?
To transmit pain and temperature sensations
What is the primary function of lateral inhibition in the somatosensory pathways?
To facilitate the localization of the site of stimulation
What type of neurotransmitter is typically released by nociceptors to signal pain?
Substance P or glutamate
Which of the following best describes the role of the second-order sensory neuron in the somatosensory pathways?
It crosses to the opposite side of the CNS and ascends to the thalamus
What is the primary function of the posterior column pathway in the somatosensory system?
To transmit highly localized touch, pressure, vibration and proprioception
How do the somatosensory pathways ultimately reach the level of conscious awareness?
Through the primary sensory cortex
Which type of nociceptor fibers are responsible for transmitting sensations of fast, sharp pain?
Myelinated A-delta fibers
What is the role of the first-order sensory neuron in the somatosensory pathways?
It is the afferent neuron with its peripheral receptor that first detects the stimulus
What is the primary function of pain perception in the somatosensory system?
To bring to conscious awareness tissue damage that is occurring or about to occur
How do the somatosensory pathways become 'labeled' according to modality and location?
Through the decoding of the stimulus by the CNS based on the specific pathway that carries it
Explore the functions of key brain structures like the thalamus, hypothalamus, and limbic system. Learn about their roles in sensory processing, regulation of internal environment, and emotional responses.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
