Final answer:
The Recurrent Laryngeal Nerve (RLN) and the Superior Laryngeal Nerve (SLN) are branches of the vagus nerve. The RLN controls most intrinsic laryngeal muscles and the SLN provides sensation to the larynx above the vocal cords. The sensory division of the peripheral nervous system transmits sensory information to the CNS.
Step-by-step explanation:
The RLN and SLN are branches of the vagus nerve (Cranial Nerve X). The abbreviation RLN stands for Recurrent Laryngeal Nerve, while SLN stands for Superior Laryngeal Nerve. The RLN is responsible for innervating most of the intrinsic muscles of the larynx, whereas the SLN has an external branch which innervates the cricothyroid muscle and an internal branch which provides sensory innervation to the larynx above the vocal cords.
Within the peripheral nervous system, the two major divisions are the somatic nervous system and the autonomic nervous system. The role of the sensory division, which is part of the somatic nervous system, is to transmit sensory information from the body to the central nervous system, including pain, temperature, touch, and proprioception.