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Questions and Answers
What is the function of parasympathetic preganglionic motor neurons in the spinal cord?
What is the function of parasympathetic preganglionic motor neurons in the spinal cord?
- Innervate the muscles of the upper limbs
- Control involuntary actions like heart rate (correct)
- Regulate reflex actions in the body
- Supply the striated muscles of the axial skeleton
Which spinal cord segments house the parasympathetic preganglionic motor neurons in humans?
Which spinal cord segments house the parasympathetic preganglionic motor neurons in humans?
- L3 to S1 segments
- S2 to S4 segments (correct)
- C5 to T1 segments
- T2 to L2 segments
Where are the sympathetic preganglionic motor neurons located in the human spinal cord?
Where are the sympathetic preganglionic motor neurons located in the human spinal cord?
- L3 to S1 segments
- C5 to T1 segments
- T2 to L2 segments (correct)
- S2 to S4 segments
What is the main function of the sympathetic preganglionic motor neurons in the spinal cord?
What is the main function of the sympathetic preganglionic motor neurons in the spinal cord?
Where are the cell bodies of sensory axons located in relation to the spinal cord?
Where are the cell bodies of sensory axons located in relation to the spinal cord?
Which part of a spinal nerve contains the axons of motor neurons?
Which part of a spinal nerve contains the axons of motor neurons?
What is the role of the neural crest cells in the development of the nervous system?
What is the role of the neural crest cells in the development of the nervous system?
Which component is NOT part of the peripheral nervous system?
Which component is NOT part of the peripheral nervous system?
Where do the axons of motor neurons grow until they reach their target muscle?
Where do the axons of motor neurons grow until they reach their target muscle?
Which region contains motor neurons supplying the tail muscles?
Which region contains motor neurons supplying the tail muscles?
What is the primary function of ganglion cells in the autonomic nervous system?
What is the primary function of ganglion cells in the autonomic nervous system?
Which cells migrate away from the dorsal surface of the neural tube to form the neural crest?
Which cells migrate away from the dorsal surface of the neural tube to form the neural crest?
Where are autonomic motor neurons primarily located in the spinal cord?
Where are autonomic motor neurons primarily located in the spinal cord?
What type of markers do somatic motor neurons in the spinal cord stain well with?
What type of markers do somatic motor neurons in the spinal cord stain well with?
Which types of muscles do autonomic motor neurons generally innervate?
Which types of muscles do autonomic motor neurons generally innervate?
In which region of the grey matter are somatic motor neurons found in the spinal cord?
In which region of the grey matter are somatic motor neurons found in the spinal cord?
Which segment of the spinal cord contains autonomic motor neurons responsible for pelvic parasympathetic outflow?
Which segment of the spinal cord contains autonomic motor neurons responsible for pelvic parasympathetic outflow?
Which feature differentiates autonomic motor neurons from somatic motor neurons?
Which feature differentiates autonomic motor neurons from somatic motor neurons?
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