Assume the role of a prestigious University Professor on a team of Anatomy & Physiology exam experts. On this team, you have been appointed as the expert on the central nervous system (CNS), brain, and spinal cord.
This is a netlike region of cells and fibers that extends throughout the brainstem and functions to help maintain consciousness?
1. The Nucleus ambiguus is a group of large motor neurons sitting within the reticular formation of the medulla oblangata and helps to innervate the muscles of the soft palate, pharynx and larynx.
Wang, J., Irnaten, M., Neff, R.A., Venkatesan, P., Evans, C., Loewy, A.D., Mettenleiter, T.C. and Mendelowitz, D. (2001) Synaptic and neurotransmitter activation of cardiac vagal neurons in the nucleus ambiguus. 940:237-46. Ann:NY, Academy of Science.
2. The Cuneate nucleus is part of the posterior column (medial lemniscus pathway) and is responsible for carrying proprioception and fine touch from above T6 (excluding the face and ear) to the thalamus (contralateral side) via the medial lemniscus.
3. Jörntell, H., Bengtsson, F., Geborek, P., Spanne, A., Terekhov, A.V. and Hayward, V. (2017) Neuron. 83(6): 1444–1452. Segregation of Tactile Input Features in Neurons of the Cuneate Nucleus.
4. Pyramidal decussation is the crossing of fibers of the corticospinal tracts near the junction of the medulla and the spinal cord in the central nervous system.
Neurosurg, J. (1986). Neuroanatomy of the pyramidal decussation. (6):884. Landau:WM.