KROK 1 2011 – Question 159 · KROK (Medicine) · Physiology
An animal has an increased tonus of extensor muscles. This the result of intensified information transmission to the motoneurons of the spinal cord through the following descending pathways:
- A. Medial corticospinal
- B. Rubrospinal
- C. Lateral corticospinal
- D. Vestibulospinal
- E. Reticulospinal
Hint
Separate descending tracts that carry voluntary commands from those that set postural tone, and ask which of the latter drives the antigravity muscles.
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