Question

Name Pre-Lab Exercise 14-3 Cranial Nerve Functions Complete Table 14.1 with the fun c h a l nerves and indicate whether the nerve is motor, sensory, or mixed. Use Exercise 14-2 (p. 369) in this unit for reference. TABLE 14.1 The Cranial Nerves Motor, Sensory. or Mixed Cranial Nerve Functions CNT: Olfactory nerve CN : Optic nerve CN IN: Oculomotor nerve CN IV: Trochlear nerve CN V: Trigeminal nerve CN VI: Abducens nerve CN VII: Facial nerve CN VIII: Vestibulocochlear nerve CN IX: Glossopharyngeal nerve CN X: Vagus nerve CN XI: Accessory nerve CN XII: Hypoglossal nerve UNIT 14 Peripheral and Autonomic Nervous System

Answer 1

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Number Name Function Sensory/motor or both Terminal Sensory Involved in the detection of pheromones. Olfactory Sensory Transmits the sense of smell from the nose. Optic Sensory Transmits visual signals from the retina of the eye to the brain. Oculomotor Mainly motor Performs most eye movements and the muscles of cilliary body. Trochlear Motor Movement of eyeball. Trigeminal Both sensory and Receives sensation from the face motor and innervates the muscles of mastication. Abducena Motor Provides motor innervation of facial expression posterior belly of muscles. Facial Both sensory and motor Receives the special sense of taste from the tongue and provides

VIII Vestibulococ Sensory Sensation of sound rotation and gravity essential for balance and movement and for hearing. IX Glosso pharyngeal Both sensory and Receives taste from the posterior motor tongue. Vagus Both sensory and Controls the rate of heartbeat motor and the secretions of pancreas. XI Accessory Accesso Motor Controls the sternocleido mastoid and trapezius muscles. Overlaps with functions of the Vagus. XII Hypoglossal Motor Provides motor innervation to the tongue. Important for swallowing and speech.