Video Experimental Relacionado
Updated: Jul 17, 2026
08:54
Measuring Blood Pressure in Mice using Volume Pressure Recording, a Tail-cuff Method
Published on: May 15, 2009
Medición directa de las ondas de presión intracocleares
1Physics Department, Princeton University, New Jersey 08544, USA. eolson@princeton.edu
Nature
|December 11, 1999
Resumen
Este estudio revela el componente fluido de la onda de viaje coclear utilizando mediciones de presión intracoclear. La ola La ola es la ola.
Área de la Ciencia:
- La neurociencia auditiva es una neurociencia auditiva.
- La bioacústica es la bioacústica.
- Mecánica de la audición
Sus antecedentes:
- La onda de viaje coclear es crucial para la resolución de frecuencias en el sistema auditivo de los mamíferos.
- Estudios anteriores midieron principalmente el movimiento de la partición coclear, descuidando el componente de fluido.
Objetivo del estudio:
- Para investigar experimentalmente el componente fluido de la onda de viaje coclear.
- Para medir la presión intracoclear cerca de la partición coclear.
Principales métodos:
- Se realizaron mediciones finamente espaciadas de la presión intracoclear.
- Las mediciones se tomaron cerca de la partición coclear.
Principales resultados:
- El componente fluido de la onda coclear fue revelado a través de mediciones de presión.
- La profundidad de penetración de la onda en el fluido coclear está limitada a aproximadamente 15 micrómetros.
- Se encontró que esta profundidad de penetración era independiente de la frecuencia en al menos un rango de octava.
Conclusiones:
- La medición directa de la presión intracoclear proporciona nuevos conocimientos sobre la onda de viaje coclear.
- La profundidad de penetración limitada e independiente de la frecuencia de la onda tiene implicaciones para la comprensión de la mecánica auditiva.
Videos de Conceptos Relacionados
01:21Sites for measuring blood pressure
Blood pressure measurement is a fundamental clinical procedure, providing crucial data for assessing cardiovascular health. Among the various sites for this measurement, the brachial and popliteal arteries are predominantly utilized due to their accessibility and the reliability of their readings. This lesson delves into the anatomical significance, methodology, and considerations of measuring blood pressure at these locations.
The Brachial Artery: Primary Site for Blood Pressure Measurement
The Brachial Artery: Primary Site for Blood Pressure Measurement
01:30Equipments Used To Measure Blood Pressure
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
01:15Assessment of blood pressure in brachial artery(one-step method)
This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
Prepare for the Procedure:
01:23Assessment of blood pressure in brachial artery(two-step method)
Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...
01:17Measurement of Blood Pressure
Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a stethoscope.
01:16Measurement of Fluid Pressure
Fluid pressure is commonly measured using devices called manometers, which rely on liquid columns to indicate pressure differences. The height of a liquid column in a manometer reflects the pressure exerted by the fluid, providing a simple yet effective means of measurement. Different types of manometers serve specific purposes based on their configurations and the type of fluids involved.
A basic form of manometer is the piezometer, a vertical tube open at the top and filled with the same...
A basic form of manometer is the piezometer, a vertical tube open at the top and filled with the same...