Superior olivary nucleus - Study guides, Class notes & Summaries

Exam 2: BIOS 252 / BIOS252 (Latest 2024/ 2025 Update) Anatomy and Physiology II Exam Review| Questions and Verified Answers| 100% Correct| Grade A - Chamberlain Q: The substantia nigra releases the neurotransmitter __________which is active in pleasurable experiences and regulation of muscle tone. Epinephrine Dopamine GABA Acetylcholine Norepinephrine Answer: Dopamine Q: After suffering a blow to the back of the head, Phil loses his vision. The blow probably cau...

CNIM - Brainstem Auditory Evoked Potentials Question and answers 100% correct 2024 In the operating room, we are mostly concerned with... - correct answer Short-latency, subcortical responses. Why run BAEPs? - correct answer To monitor the integrity of the auditory nerve, and often as a marker of brainstem health, Auditory Pathway - correct answer Consists of classical lemnisci pathway and an extralemniscal pathway. Lemniscal pathway generates the short-latency BAEPs through series ...

what type of recording is ABR? - far-field, exogenous response is ABR near field or far field? - far-field Is ABR endogenous, exogenous, mesogenous? - exogenous response How many waves are in an ABR? - comprised of 6-7 waves (i.e. peaks) ABR is measured within ______________ relative to stimulus onset - first 12 millisecond early latency is: - time-locked Waves will be _______ apart - millisecond Wave I generator - - distal portion of 8th nerve - 1st order neurons - AP for ECoG Wave I...

CNIM - Brainstem Auditory Evoked PotentialsIn the operating room, we are mostly concerned with... - correct answer Short-latency, subcortical responses. Why run BAEPs? - correct answer To monitor the integrity of the auditory nerve, and often as a marker of brainstem health, Auditory Pathway - correct answer Consists of classical lemnisci pathway and an extralemniscal pathway. Lemniscal pathway generates the short-latency BAEPs through series of relay stations. CN VIII - correct...

CNIM - Brainstem Auditory Evoked Potentials Question and answers already passed 2024 CNIM - Brainstem Auditory Evoked Potentials In the operating room, we are mostly concerned with... - correct answer Short-latency, subcortical responses. Why run BAEPs? - correct answer To monitor the integrity of the auditory nerve, and often as a marker of brainstem health, Auditory Pathway - correct answer Consists of classical lemnisci pathway and an extralemniscal pathway. Lemniscal pathwa...

CANS Exam Questions and Answers (Graded A)CANS Exam Questions and Answers (Graded A)CANS Exam Questions and Answers (Graded A)CANS Exam Questions and Answers (Graded A)CANS Exam Questions and Answers (Graded A)CANS Exam Questions and Answers (Graded A) auditory nervous system - ANSWER-Auditory Nerve Cochlea Cochlear Nucleus Superior Olivary Complex Lateral Lemniscus Inferior Colliculus Medial Geniculate Body Auditory Cortex The Cochlea receives information from_____ The Cochlea se...

Sound waves are ___; compression is __ of a wave, rarefaction is ___ ~~> longitudinal - move like a slinky; top; bottom Period ~~> the time taken for one up-down cycle (wavelength) Wavelength ~~> the distance b/w two peaks/an up-down cycle Universal wave equation ~~> speed = distance/time = wavelength/period Higher pitch = ~~> higher frequency - but perception depends on the environment Sound frequency ~~> - longer wavelengths = lower frequency - basilar membr...

There are 4 types of cells in the cortex: pyramidal, stellate (aka granular), fusiform, and horizontal cells of Cajal. Which of these are Golgi II cells? correct answers stellate; horizontal cells of Cajal Subcortical processing is as follows: (A) Cochlea (B) Anterior ventral cochlear nucleus (C) Posterior ventral cochlear nucleus (D) Multipolar cells of ventral cochlear nucleus (AVCN and PVCN) (E) Superior olivary complex (F) Inferior colliculus (G) Medial geniculate body correct answ...

Auditory Brainstem Response - ️️- first published description by Jewett & Willston in 1971 - Early response, fast response, or short latency auditory evoked response - 5 major ABR waveforms represent synchronous neural activity - focuses on waves 1, 3, 5 - If this is present, hearing is good Neural Synchrony - ️️- Sharply peaked waveforms in the ABR represent this Wave I Neural Generator - ️️- Compound auditory nerve action potential - Distal cochlear nerve - Happens cl...

Higher pitch = - ️️higher frequency - but perception depends on the environment Wavelength - ️️the distance b/w two peaks/an up-down cycle Middle ear - ️️everything inside the tympanic membrane and before the oval window LSO - ️️- monitors intensity differences for high-frequency sound - head blocks frequencies that have wavelengths smaller than the head - produces a sound shadow (in humans - higher than 2kHz) - the ipsilateral LSO starts firing more when there is a sound ...