Exam 2 covers chapters 11-15 in the following text: Hogan-Quigley, B., Palm, M. L., & Bickley, L. (2017). Bates’ nursing guide to physical examination and history taking (2nd ed.). Wolters Kluwer. Although an exam question may come from any part of chapters 11-15, the student should focus on the following: Chapter 11 Anatomy and physiology of the eye • Sensory organ o Spherical structure that focuses light on retina > CNII > optic tract > visual cortex o Muscles of iris control pupillary responses o Enables vision • Cranial nerve component o CN III: oculomotor nerve = innervates the levator palpebrae muscle, which raises the upper eyelid. CN II is the optic nerve, CN IV is the trochlear nerve, and CN VI is the abducens nerve. o CN IV and VI: extraocular movements o The cranial nerves affecting the eyes and the function of each