3. Which is correct about motor reflex?
A. (A) modification of spinal reflexes is an important process in learning motor skills
B. (B) proprioceptive reflexes play an important role in regulating both voluntary and automatic movements
C. (C) central motor commands and cognitive processes can alter synaptic transmission in spinal reflex pathways
D. (D) all of above
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2. Which is wrong about the relationship between spinal reflex and motor cortex?
A. (A) motor cortex participates in short-latency response
B. (B) spinal reflex via motor cortex is important in regulating contraction of distal muscles
C. (C) Klippel-Feil syndrome is a defect of long-latency response
D. (D) Klippel-Feil syndrome affects movements bilaterally
1. Which is not the site of modification in the reflex pathway?
A. (A) afferent axon terminals
B. (B) interneurons in polysynaptic pathways
C. (C) α motor neurons
D. (D) efferent axon terminals
3. Which structure is sensitive to changes in muscle tension?
A. (A) muscle fibers
B. (B) Golgi tendon organs
C. (C) collagen fiber
D. (D) Renshaw cells
2. Which two structures provide primary information to the spinal circuit of reflex?
A. (A) muscle fibers and sensory neuron
B. (B) muscle spindle and Golgi tendon organ
C. (C) muscle spindle and muscle fibers
D. (D) Golgi tendon organ and motor neurons
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