Download CLC 222 MODULE 2 COMPLETE STUDY GUIDE 2026 and more Exams Neuroanatomy in PDF only on Docsity!
CLC 222 MODULE 2 COMPLETE STUDY GUIDE
โ the posterior portion of the outer fibrous layer of the eye is called the ____ Answer: sclera โ what portion of the eye supplies blood supply to the outer layers of the eye? Answer: choroid (of the middle layer) โ true or false: the more numerous type of photoreceptors are rods Answer: true โ what is the correct order of how light passes through the eye? Answer: cornea, lens, vitreous fluid, retina โ A patient had a CVA in the area indicated by the red x in the figure, below. What type of blindness is the patient most likely to incur? Explain your reasoning. Answer: Bilateral left visual field blindness. The right optic tract is damaged. All the sensory information from the left visual fields travels together after the optic chiasm to the right side of the brain. โ A patient has a brain tumor in the area indicated by the red x in the figure, below. What type of blindness is the patient most likely to
incur? Explain your reasoning. Answer: Left eye blindness because there is damage to the left optic nerve. Information from the left visual field has not yet crossed at the optic chiasm. Both peripheral and nasal fields of the left eye would be missing. โ True or False: All sensory information from the optic nerves cross at the optic chiasm. Answer: F โ The ________ is controlled by the trochlear nerve. Answer: Superior oblique โ 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. Answer: The 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. โ 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
โ Which of the following statements is false regarding the middle ear? Answer: The stapes receives vibrations from the cochlea. โ Which of the following statements is true regarding the inner ear? Answer: The organ of Corti is responsible for the body's auditory sense. โ Place the terms (A-H) in the correct order for the hearing pathway. Note: not all terms will be used. Funneled vibrations push against the eardrum which moves the __1____. The stapes pushes against the 2. Movement of tiny hairs inside the ____3____causes neurons to send impulses through a cranial nerve to the ____4, located in the __5____ lobe. 1: A. Auditory cortex 2: B. Organ of Corti 3: C. Stereocilia 4: D. Cochlear duct 5: E. Ossicles F. Facial G. Temporal H. Parietal Answer: E. Ossicles
D. Cochlear duct B. Organ of Corti A. Auditory cortex G. Temporal โ Place the terms (A-H) in the correct order for the hearing pathway. sound waves are funneled in the 1. vibrations push against the ___2____ which moves the ossicles. the stapes pushes against the -- 3 ---. movement of the ___4--- causes neurons to send impulses through the 5 to the brain. Answer: 1.)Auditory cortex 2.)tympanic membrane 3.)cochlear duct 4.)stereocilia 5.) cochlear nerve โ Label the figure below with the correct papillae: (A-C).
โ A patient has lost his sense of taste following a TBI. What term should be documented should to describe his loss of taste? Answer: Ageusia โ A patient has lost his sense of smell following a car accident. What term should be documented should to describe his loss of smell? Answer: Anosmia โ True or False: The tongue only contains receptors that are chemoreceptors for taste. Answer: f โ True of False The tongue contains nociceptors and thermoreceptors in addition to chemoreceptors. Answer: t โ Describe the steps in the olfactory pathway. Begin in the nasal cavity and end in the specific lobe of the brain. Answer: Chemicals dissolve in nasal mucosa Detected by olfactory receptors (bipolar cells) Olfactory nerves, olfactory bulb, olfactory tract Temporal lobe of the brain โ A patient sustains an injury to the Organ of Corti. What type of deafness does this patient most likely have? Explain your answer. Answer: Nerve deafness
Occurs from damage to the nerve for the auditory pathway. The Organ of Corti is part of the nerve pathway (receptor cells). โ True or false: The more numerous type of photoreceptors are rods. Answer: true โ 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. Answer: C. Left LGN All the sensory information from the right visual fields travels together after the optic chiasm to the left side of the brain. โ A patient is found to have blindness in the right eye. What part of the vision pathway was most likely damaged? Explain your response. Answer: D. Right optic nerve. The optic nerve provides vision so if the blindness in the right eye then the right optic would be impaired. โ The ________ is controlled by the abducens nerve. Answer: lateral rectus
E. Ethmoid Bone โ True or false: Olfaction is a chemical sense activated by chemical substances dissolved in the nasal mucous membranes. Answer: true โ A person cannot perceive tastes from the posterior portion of the tongue. What nerve is most likely damaged? Answer: Glossopharyngeal (CN IX) โ A patient sustains an injury to the Organ of Corti. What type of deafness does this patient most likely have? Explain your answer. Answer: Nerve deafness : Occurs from damage to the nerve for the auditory pathway. The Organ of Corti is part of the nerve pathway (receptor cells). โ the outer fibrous layer of the eye includes the : Answer: sclera and cornea โ the middle layer of the eye includes which regions? Answer: ciliary body and iris โ t/f : cones operate best in dim light Answer: true
