q1 - welcome2steps - Printable Version +- USMLE Forum - Largest USMLE Community (https://www.usmleforum.com) +-- Forum: USMLE Forum (https://www.usmleforum.com/forumdisplay.php?fid=1) +--- Forum: Step 1 (https://www.usmleforum.com/forumdisplay.php?fid=2) +--- Thread: q1 - welcome2steps (/showthread.php?tid=805369) |
q1 - welcome2steps - ArchivalUser - 04-17-2015 The CNS contains varieties of neuroanatomical arrangements that underlie important functions. One such arrangement involves the functions of the olivocochlear bundle. Which of the following statements concerning the olivocochlear bundle correctly describes its principal function? a. It arises from the inferior olivary nucleus and projects to the cochlea b. Stimulation of it inhibits acoustic fiber responses to auditory stimuli c. It communicates directly with the medial lemniscus d. It can be seen easily in brainstem sections taken from the upper pons e. It is part of the ascending auditory pathway to the dorsal cochlea nucleus 0 - ArchivalUser - 04-17-2015 AA 0 - ArchivalUser - 04-17-2015 mnemonic for the auditory pathway E.COLI = Ear-> Cochlea -> superior Olive -> Lemniscus Lateralis -> Inferior colliculus Answers above are vague but I would go with E 0 - ArchivalUser - 04-17-2015 B it is an efferent system, designed to protect the ear from toxic noise, etc... http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3615293/ http://en.wikipedia.org/wiki/Olivocochlear_system thank you for a nice q. 0 - ArchivalUser - 04-21-2015 yes answer is b very good monter |