The lateral corticospinal tracts include a ________ of the upper motor neuron axons that pass through the medulla, and they govern control of ___________.
A. majority, axial muscles
B. majority, muscles used for finely controlled movements
C. minority, axial muscles
D. minority, muscles used for finely controlled movements
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Question 2) The cell bodies of lower motor neurons are housed in the posterior horns of the spinal cord.
Indicate whether this statement is true or false.
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Question 3) Which of the rami is much smaller than the other?
A. The anterior ramus
B. The posterior ramus
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Question 4) The neurons that directly innervate skeletal muscles are called A. first-order neurons. B. second-order neurons. C. upper motor neurons. D. lower motor neurons. Bloom's Level: 1. Remember HAPS Objective: H12.02 Describe the locations and functi
A. first-order neurons.
B. second-order neurons.
C. upper motor neurons.
D. lower motor neurons.
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Question 5) Motor neurons that innervate the head and neck are located in the motor nuclei of cranial nerves and in the reticular formation.
Indicate whether this statement is true or false.
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Question 6) The spinocerebellar pathway is an ascending somatosensory pathway.
Indicate whether this statement is true or false.
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Question 7) In both the anterolateral pathway and the posterior funiculus-medial lemniscal pathway, the axons of the ________ neurons decussate in the CNS.
A. primary
B. secondary
C. tertiary
D. quaternary
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Question 8) The anterior spinocerebellar tract conducts signals about
A. pain from the upper limbs.
B. pain from the lower limbs.
C. proprioception from the upper limbs.
D. proprioception from the lower limbs.
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Question 9) The medial lemniscus is
A. gray matter in the spinal cord that processes information about proprioception and touch.
B. gray matter in the spinal cord that processes information about pain and temperature.
C. white matter in the brainstem that conducts information about proprioception and touch.
D. white matter in the brainstem that conducts information about pain and temperature.
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Question 10) Neurons of the thalamus that are part of sensory conduction pathways are considered
A. primary neurons.
B. secondary neurons.
C. tertiary neurons.
D. quaternary neurons.
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