12. Are sensory neurons from general sensory receptors unipolar, bipolar, or mul
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Question
12. Are sensory neurons from general sensory receptors unipolar, bipolar, or multipolar neurons? 13. Where are the cell bodies for the sensory neurons (first order neurons) located? 14. Where are their axon terminals located? 15. Where are the cell bodies for the second-order neurons located? 16. Where are their axon terminals located? 17. Where are the cell bodies for the third-order neurons located? 18. Where are their axon terminals located? 19 Where does the posterior column-medial lemniscus pathway cross the opposite side of the CNS? 20. Where does the anteriolateral (spinothalamic) pathway cross to the opposite side of the CNS? 21. Refer to the map of the somatosenory cortex in your text. Based on the size of the area represented on the cortex and the size of the body area, circle which body area has the greatest density of receptors. Lips Tongue Foot Lips Thigh Toes Hand Tongue Do the cerebellar hemispheres receive proprioceptive nerve impulses ipsilaterally or contralaterally? 3.Explanation / Answer
12.Are sensory neurons from general sensory receptors unipolar, bipolar, or multipolar neurons?
Answer- they are commonly unipolar.
13.Where are the cell bodies of the sensory neurons (first-order neurons) located?
Answer- they are located in the dorsal (posterior) root ganglion
14.Where are their axon terminals located?
Answer- axon terminals are located in the posterior horn of the spinal cord.
15.Where are the cell bodies of the second-order neurons located?
Answer- the cell bodies of the second-order neurons are located in the Posterior horn of spinal cord for the anterolateral pathway and the posterior column of the medulla oblongata for the medial lemniscus pathway.
16.Where are their axon terminals located?
Answer- Their axon terminals are located in the thalamus.
17.Where are the cell bodies of the third-order neurons located?
Answer- the cell bodies of the third-order neurons located in the thalamus.
18.Where are their axon terminals located?
Answer- their axon terminals located in the primary somatosensory cortex.
19.Where does the posterior column-medial lemniscus pathway cross the opposite side of the CNS?
Answer- medulla oblongata
20.Where does the anterolateral (spinothalamic) pathway cross to the opposite side of the CNS?
Answer- spinal cord
21. Answer- the greater density of receptors are found in the hand(fingertips) followed by lips and the tongue.
3. Answer- the cerebellar hemispheres receive proprioceptive nerve impulses ipsilaterally.
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