Peripheral Receptors Flashcards
(10 cards)
Nociceptros have afferent neurons of which of the following types?
Group III and IV
Which of the following best describes a nuclear bag fiber?
an intrafusal fiber characterized by a thick, central region filled with clusters of nuclei
Secondary endings from spindles converge to create what type of afferent neuron?
Group II
The dynamic response from muscle spindles comes from the stimulation of primary endings
Primary Endings
Which of the following is not a phase of the stretch-shortening cycle?
dynamic phase
Which of the following statements is not accurate regarding the contribution of muscle spindles to voluntary movement?
stimulating spindles with prolonged vibration enhances motor output
Which of the following statements about GTOs and their afferent neurons is not true?
GTOs stimulate Ib afferents, which monosynaptically inhibit the alpha-motor neuron pool
What effect do fatigue-sensitive chemoreceptors have on the motor neuron pool for the same muscle?
Inhibition
Which of the following pathways inhibits the antagonist motor neuron pool?
Group Ia from muscle spindles
Which of the following statements regarding the reafference principle is not true?
a sensation is only felt when the sensory information from an actual movement perfectly matches the desired movement
