Which is correct about cortical pathways for saccades?
A. (A) superior colliculus integrates visual and motor information into oculomotor signals
B. (B) pontine reticular formation is involved in translation into specific muscle signals for saccades
C. (C) frontal eye field is involved in target selection
D. (D) all of the above
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What information is encoded by the oculomotor signals?
A. (A) eye velocity and position
B. (B) eye velocity and volume of the targeted object
C. (C) direction and orientation of the object
D. (D) all of the above
Which description is correct about the supraspinal regulation of stepping?
A. (A) cerebellum is involved in the adjustment of motor patterns
B. (B) visual cortex is responsive for visually guiding of limb movements
C. (C) activation of mesencephalic locomotor region initiates body movements
D. (D) all of the above
Which factor must be overcome when a movement is started and stopped?
A. (A) body weight
B. (B) gravity
C. (C) inertia
D. (D) friction
What are the factors that determine the peak force and maximal shortening velocity of muscles?
A. (A) diameters and lengths of muscles
B. (B) arrangements and dimensions of muscles
C. (C) number of muscle fibers and innervated motor neurons
D. (D) mitochondria numbers in muscle cells
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