Biod 152 Exam 3 Study Guide Latest Updated

A patient had CVA in the area indicated by the red X in the figure, below. What type of blindness is the patients most likely to incur. Explain {Ans: 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.}A person cannot perceive tastes from the anterior portion of the tongue. What nerve is most likely damaged? {Ans: Facial (CN CII)}Which of the following statements is false regarding the inner ear? {Ans: There are two semicircular canals which house sensory receptors}True or False. All sensory information from the optic nerves cross at the optic chiasm. {Ans: False}True or False: Olfaction is a mechanical sense activated by mechanoreceptors in the nasal mucous membranes {Ans: False}Describe the steps in the olfactory pathway. Begin in the nasal cavity and end is specific lobe of the brain. {Ans: Chemicals dissolve in nasal mucosa Detected by olfactory receptors (bipolar cells) Olfactory nerves, olfactory bulb, olfactory tract Temporal lobe of the brain}