Biomaterial Database

Physiology of sleep disordered breathing. 2007

B Tucker Woodson, and Rose Franco

Division of Sleep Medicine, Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin at Froedtert West, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA. bwoodson@mcw.edu

Obstructive sleep apnea (OSA) results from complex interactions between anatomy and physiology. A structurally small and abnormally collapsible upper airway predisposes to disease, and interacts with normal and pathologic physiologic mechanisms to determine severity of disease. Understanding the pathophysiology provides insight into airway collapse, and may improve treatment and lead to potential new medical and surgical treatments for OSA.

UI	MeSH Term	Description	Entries
D009058	Mouth Breathing	Abnormal breathing through the mouth, usually associated with obstructive disorders of the nasal passages.	Breathing, Mouth,Breathings, Mouth,Mouth Breathings
D010038	Otorhinolaryngologic Diseases	Pathological processes of the ear, the nose, and the throat, also known as the ENT diseases.	Otolaryngologic Diseases,ENT Diseases,Otolaryngological Diseases,Otorhinolaryngologic Disease,Otorhinolaryngological Disease,Disease, ENT,Disease, Otolaryngologic,Disease, Otolaryngological,Disease, Otorhinolaryngologic,Disease, Otorhinolaryngological,Diseases, ENT,Diseases, Otolaryngologic,Diseases, Otolaryngological,Diseases, Otorhinolaryngologic,Diseases, Otorhinolaryngological,ENT Disease,Otolaryngologic Disease,Otolaryngological Disease,Otorhinolaryngological Diseases
D010160	Palate, Soft	A movable fold suspended from the posterior border of the hard palate. The uvula hangs from the middle of the lower border.	Velum Palatinum,Soft Palate,Palates, Soft,Palatinum, Velum
D010614	Pharynx	A funnel-shaped fibromuscular tube that conducts food to the ESOPHAGUS, and air to the LARYNX and LUNGS. It is located posterior to the NASAL CAVITY; ORAL CAVITY; and LARYNX, and extends from the SKULL BASE to the inferior border of the CRICOID CARTILAGE anteriorly and to the inferior border of the C6 vertebra posteriorly. It is divided into the NASOPHARYNX; OROPHARYNX; and HYPOPHARYNX (laryngopharynx).	Throat,Pharynxs,Throats
D002508	Cephalometry	The measurement of the dimensions of the HEAD.	Craniometry
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000403	Airway Resistance	Physiologically, the opposition to flow of air caused by the forces of friction. As a part of pulmonary function testing, it is the ratio of driving pressure to the rate of air flow.	Airway Resistances,Resistance, Airway,Resistances, Airway
D012894	Sleep Stages	Periods of sleep manifested by changes in EEG activity and certain behavioral correlates; they formerly included Stage 1: sleep onset, drowsy sleep; Stage 2: light sleep; Stages 3 and 4: delta sleep, light sleep, deep sleep, telencephalic sleep. In 2007, sleep stages were redefined by The American Academy of Sleep Medicine (AASM) as: N1-N2 (sleep onset - light sleep), N3 (SLOW-WAVE SLEEP), and REM SLEEP.	N1-Sleep,N2-Sleep,NREM Stage 1,NREM Stage 2,N1 Sleep,N2 Sleep,Sleep Stage,Stage, Sleep,Stages, Sleep
D015508	Nasal Obstruction	Any hindrance to the passage of air into and out of the nose. The obstruction may be unilateral or bilateral, and may involve any part of the NASAL CAVITY.	Bilateral Nasal Obstruction,Nasal Airway Obstruction,Nasal Blockage,Unilateral Nasal Obstruction,Airway Obstruction, Nasal,Blockage, Nasal,Blockages, Nasal,Nasal Blockages,Nasal Obstruction, Bilateral,Nasal Obstruction, Unilateral,Obstruction, Bilateral Nasal,Obstruction, Nasal,Obstruction, Nasal Airway,Obstructions, Nasal
D017286	Polysomnography	Simultaneous and continuous monitoring of several parameters during sleep to study normal and abnormal sleep. The study includes monitoring of brain waves, to assess sleep stages, and other physiological variables such as breathing, eye movements, and blood oxygen levels which exhibit a disrupted pattern with sleep disturbances.	Monitoring, Sleep,Somnography,Polysomnographies,Sleep Monitoring,Somnographies