BIOD 152 Optic Nerves/Sensory Information module 3 Prep Exam Questions and Answers 2023/2024

BIOD 152 Optic Nerves/Sensory Information module 3 Prep Exam Questions and Answers 2023/2024 what senses contain specialized receptors via specialized somatic and visceral afferents? - correct answer smell, equilibrium the posterior portion of the outer fibrous layer of the eye is called the - correct answer sclera what portion of the eye supplies blood supply to the other layers of the eye? - correct answer choroid (of the middle layer) true or false: the more numerous type pf photo receptors are rods. - correct answer true what is the correct order of how light passes through the eye? - correct answer cornea, lens, vitreous fluid, retina a patient is found to have blindness of the right visual field of both eyes. what part of the vision pathway was most likely damaged? explain your response. - correct answer Left LGN all sensory information from the right visual fields travels together after optic chiasm to the left side of the brain. a patient is found to have blindness in the right eye. what part of the vision pathway was most likely damaged? explain your repsonse. - correct answer right optic nerve. information from the right visual has not yet crossed the optic chiasm. both peripheral and nasal fields of the right eye would be missing. true of false: all sensory information from the optic nerves cross at the optic chiasm. - correct answer false what is controlled by the abducens nerve? - correct answer lateral rectus your elderly patient is discussing her vision problems. she describes her vision as blurry. following a visual examination, her left eye deviates medially when looking straight ahead. what is most likely causing the vision problem? explain your reasoning. - correct answer abducens nerve controls the lateral rectus. damage to the lateral rectus would cause there to be a muscle imbalance, and the medial rectus would pull the eye medially when looking straight ahead, causing blurry vision. (diplopia) Match the numbers (1-5) in the figure below with the correct terms (A-H). Note: not all terms will be used. 1- A: Scala Tympani 2- B: Facial Nerve 3- C: Tympanic Membrane 4- D: Cochlear duct 5- E: Organ of Corti F: external acoustic meatus G: cochlear nerve H: Scala Vestibuli - correct answer 1- H. Scala vestibuli 2- D. cochlear duct 3- E. organ of corti 4- A. scala tympani 5- G. cochlear nerve