Human head and neck Endolymph

Location of the Labyrinth OrganLocation of the Labyrinth Organ
The high [K+] in endolymph means there is a potential of +80mV from endolymph to perilymph, and the driving force into a cell from the endolymph = [ +80mV – (-70mV) ] = 150mV. Endolymph
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Nolte Chapter 14 – Hearing and Balance: The Eighth Cranial NerveNolte Chapter 14 – Hearing and Balance: The Eighth Cranial Nerve
The membranous labyrinth is suspended within the bony labyrinth, a cavity in the temporal bone. Endolymph
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Samantha M. Practice Exam 4Samantha M. Practice Exam 4
The stereocilia is located in the endolymph which has high concentration of sodium. Endolymph
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Hair Cell Function Ear12a Hair Cell FunctionHair Cell Function Ear12a Hair Cell Function
Hair cell’s membrane potential is -60 mV; hair processes generate changes in membrane potential proportionate to displacement direction. Endolymph
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Exercise 31 & 32: Anatomy and Physiology of the EarExercise 31 & 32: Anatomy and Physiology of the Ear
Identify the following ear structures on various ear models, the labyrinth model, & the cochlea model, and the cochlea histology slide, and state the function of each. Endolymph
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Objectives 1-Describe anatomy of middle ear 2-Describe anatomy of inner ea 3-Describe physiology of hearing 4-Describe physiology of balance 2- eustachian TubeObjectives 1-Describe anatomy of middle ear 2-Describe anatomy of inner ea 3-Describe physiology of hearing 4-Describe physiology of balance 2- eustachian Tube
The tube has 2 parts, a pharyngeal cartilaginous part which forms 2/3 of its length, and a tympanic bony 1/3 portion. The upper and medial walls of the pharyngeal portion of the tube are formed by a plate of cartilage. Endolymph
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Name: periodName: period
In cochlea there’s three chambers. Top and bottom have perilymph and middle (cochlear duct) endolymph. Endolymph
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Sense Organs Part 2: the Ear and the EyeSense Organs Part 2: the Ear and the Eye
Runs from the external auditory meatus slightly upward through an s-shaped course to the tympanic membrane (eardrum). Endolymph
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The ear I. External EarThe ear I. External Ear
Cochlear duct, modiolus, scala vestibuli, scala media, scala tympani, Vestibular membrane, Organ of Corti, Outer Hair cells, support cells, Tectorial membrane. Endolymph
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Recitation problemsRecitation problems
A. (b) What are the magnitude and direction of its position vector at A?. Endolymph
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Ch 15b Hearing and EquilibriumCh 15b Hearing and Equilibrium
Endolymph
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Basic informationBasic information
An inner ear (labyrinthine) disorder in which there is an increase in volume and pressure of the inner-most fluid of the inner ear (endolymph), resulting in recurrent attacks of hearing loss, tinnitus, vertigo, and fullness. Endolymph
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H. Hamersma, M. D. Otology and Neuro-otologyH. Hamersma, M. D. Otology and Neuro-otology
He postulated that obliteration of the endolymphatic duct could possibly impede the drainage of endolymph, and that increased pressure in the endolymphatic system could possibly result in tearing of the membranous labyrinth, which would. Endolymph
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Normally with the head at rest, in the neutral position the resting discharges in the two vestibular nerve are equalNormally with the head at rest, in the neutral position the resting discharges in the two vestibular nerve are equal
When a vestibular input imbalance is large or prolonged a constellation of stereotyped responses occurs. These responses are as follow: head turning, falling, swaying, vertigo, past pointing and nystagmus. Endolymph
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Balance and Equilibrium Labyrinthine Reflexes Expected ResultsBalance and Equilibrium Labyrinthine Reflexes Expected Results
The primary sense of equilibrium is mediated through hair cells located in the fluid-filled vestibular apparatus and semicircular canals of the inner ear. These receptors respond to changes in rotational, vertical, and linear acceleration. Endolymph
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