21. Identify the path through which sympathetic motor output reaches vascular sm

Question

21. Identify the path through which sympathetic motor output reaches vascular smooth muscle (throughout the body): (a) spinal nerve pairs, (b) paravertebral ganglia, or (c) spinal nerves via the paravertebral ganglion chains.

22. Use this drawing (see Figure 54) of a spinal nerve pair from the thoracolumbar cord to answer the next series of questions. First, where are ?-motor neuron cell bodies found?  (a) orange highlight, (b) yellow highlight, or (c) non-highlighted gray matter.

23. Where are ?-motor neuron cell bodies found?  (a) orange highlight, (b) yellow highlight, or (c) non-highlighted gray matter.

24. Would the orange-highlighted nuclei be found upwards into the cervical cord and downwards into the pelvic cord? (a) yes, or (b) no.

25. ?-Motor neurons throughout the cord receive negative feedback from Golgi tendon organs via glycinergic neurons. Where are such neurons in the drawing above?  (a) orange highlight, (b) yellow highlight, or (c) non-highlighted gray matter.

26. Recall that the spinal nerve pair in the drawing above is associated with the thoracolumbar cord. Are Clarke

Explanation / Answer

21) Option c is correct.

22) Option c is correct.

23) Option b is correct.

24) Option a is correct

25) Option c is correct.

26) Option a is correct.

27) Option b is correct.

28) Option a is correct.

29) Option a is correct.

30) Option b is correct.

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