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Related Concept Videos

Sleep Apnea01:21

Sleep Apnea

Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
The condition is more prevalent among...
Sleep-Wake Cycles01:24

Sleep-Wake Cycles

Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and  rapid eye movement (REM).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
Assessment of Airway, Skin Color, and Use of Accessory Muscles01:30

Assessment of Airway, Skin Color, and Use of Accessory Muscles

A thorough assessment of respiratory health is paramount in clinical settings to identify and manage respiratory distress and ensure adequate oxygenation. This article elaborates on the critical aspects of respiratory evaluation, including airway assessment, skin color examination, and the observation of accessory muscle use, which are integral to effectively diagnosing and managing patients with respiratory conditions.
Introduction
The initial evaluation of a patient's respiratory system...
Respiratory Volumes and Capacities I01:26

Respiratory Volumes and Capacities I

Assessing the respiratory rate and rhythm for a complete minute is crucial for evaluating the breathing pattern. Even a minor increase in the patient's average respiratory rate, by as little as three to five breaths per minute, is an early and vital indicator of respiratory distress. Patients with a respiratory rate exceeding twenty-four breaths per minute require close monitoring to determine the physiological alterations. This careful observation is essential for prompt recognition and...
Hyperpnea and Hyperventilation01:25

Hyperpnea and Hyperventilation

Hyperventilation refers to a higher-than-normal rate and depth of breathing, often associated with anxiety attacks. This excessive breathing surpasses the body's need to expel CO2, leading to a condition known as hypocapnia - an unusually low level of carbon dioxide in the blood. Hypocapnia can constrict cerebral blood vessels, reducing blood flow to the brain, which may result in dizziness or fainting. Early signs include tingling and muscle spasms in the hands and face, caused by falling...
Physical Assessment of the Respiratory Tract II: Inspection01:27

Physical Assessment of the Respiratory Tract II: Inspection

Physical assessment of the respiratory tract through inspection is a crucial step in understanding the patient's respiratory health. It provides insights into the functioning of the respiratory system, the musculoskeletal structure, and even the patient's nutritional status. This comprehensive approach involves observing several vital aspects: chest configuration, breathing patterns, respiratory rates, skin color, and use of accessory muscles.
Chest Configuration
The chest configuration can...

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Related Experiment Video

Updated: Jul 5, 2026

Drug-Induced Sleep Endoscopy (DISE) with Target Controlled Infusion (TCI) and Bispectral Analysis in Obstructive Sleep Apnea
07:54

Drug-Induced Sleep Endoscopy (DISE) with Target Controlled Infusion (TCI) and Bispectral Analysis in Obstructive Sleep Apnea

Published on: December 6, 2016

When a snore means more.

Rochelle Goldberg1, Edward Grandi

  • 1American Sleep Apnea Association, USA.

AHIP Coverage
|May 21, 2008
PubMed
Summary
This summary is machine-generated.

Obstructive sleep apnea (OSA) is a common condition linked to a unique human anatomical feature. This feature in the oropharynx can cause upper airway obstruction during sleep.

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Area of Science:

  • Anatomy
  • Sleep Medicine
  • Human Evolution

Background:

  • Obstructive sleep apnea (OSA) was first described in the 1960s.
  • Human anatomy, specifically the oropharynx, plays a role in OSA.
  • This unique human anatomical feature, essential for speech, can lead to airway obstruction.

Purpose of the Study:

  • To explore the anatomical basis of obstructive sleep apnea (OSA).
  • To understand the evolutionary and anatomical factors contributing to OSA in humans.

Main Methods:

  • Review of anatomical structures involved in human respiration and speech.
  • Analysis of the oropharyngeal space and its relation to airway patency.

Main Results:

  • The oropharynx, a space unique to humans, is implicated in OSA.
  • This anatomical region, crucial for speech, can become obstructed during sleep.
  • Human evolution has resulted in an airway anatomy susceptible to obstruction.

Conclusions:

  • The unique oropharyngeal anatomy of humans contributes to the occurrence of obstructive sleep apnea.
  • Understanding this anatomical predisposition is key to managing OSA.