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Physiology of Respiration I: Functions of the Respiratory System01:27

Physiology of Respiration I: Functions of the Respiratory System

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The respiratory system is crucial for exchanging oxygen (O2) and carbon dioxide (CO2) between the atmosphere and the bloodstream, maintaining the body's balance. Beyond gas exchange, it helps regulate acid-base balance, purify inhaled air, and enable vocalization.
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Anatomy of Respiratory System II: Lower Respiratory Tract01:31

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The lower respiratory tract is anatomically composed of several vital structures, including the larynx, trachea, bronchial tree, alveoli, lungs, and pleurae. Each component has a specific function, and all are intricately connected to ensure efficient respiration.
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In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
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The Respiratory System01:16

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The respiratory system is comprised of the organs that enable breathing. Air enters the nostrils and mouth, followed by the pharynx (throat) and larynx (voice box), which lead to the trachea (windpipe). In the thoracic cavity, the trachea splits into two bronchi that allow air to enter the lungs. The bronchi split into progressively smaller bronchioles and terminate in small groups of tiny sacs in the lungs called alveoli, where gas exchange occurs.
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Anatomy of Respiratory System I: Upper Respiratory Tract01:29

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The upper respiratory tract plays a vital role in the respiratory system, comprising several structures that facilitate air intake and prepare air for the lungs. It also serves as the first line of defense against pathogens and particles. This tract includes the nose and nasal cavity, the oral cavity, the paranasal sinuses, and the pharynx, each with specific functions and features.
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The signs and symptoms of fever include hot and dry skin, flushed face, thirst, muscle aches, anorexia, headache, tachycardia, tachypnea, and fatigue. Elevated body temperature is reduced using two methods: pharmacological and nonpharmacological. Proper identification and treatment of the root cause of a fever is of utmost importance.
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Assessment of Respiratory Function in Conscious Mice by Double-chamber Plethysmography
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Chronic periodontitis and reduced respiratory function.

Lewis Winning1, Christopher C Patterson1, Kathy M Cullen2

  • 1Centre for Public Health, School of Medicine Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK.

Journal of Clinical Periodontology
|February 4, 2019
PubMed
Summary
This summary is machine-generated.

Chronic periodontitis (CP) is linked to poorer respiratory function in older men. This study found a significant association between gum disease severity and reduced lung capacity, even after accounting for other factors.

Keywords:
chronic obstructive pulmonary diseaseinflammationperiodontitisrespiratory function

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Area of Science:

  • Oral Health
  • Respiratory Medicine
  • Public Health

Background:

  • Chronic periodontitis (CP) is a prevalent oral condition.
  • Respiratory diseases represent a significant global health burden.
  • The potential link between oral health and systemic conditions like respiratory impairment warrants investigation.

Purpose of the Study:

  • To determine if there is an association between chronic periodontitis and reduced respiratory function.
  • To quantify the relationship between periodontal disease severity and lung function measures.
  • To explore potential mediating roles of systemic inflammation.

Main Methods:

  • A cohort of 1,380 dentate men aged 58-72 in Northern Ireland underwent periodontal examinations.
  • Participants provided medical history, social, demographic, and tobacco use data via questionnaires.
  • Respiratory function was assessed using spirometry, measuring % predicted forced expiratory volume in one-second (% predicted FEV1).

Main Results:

  • A doubling in mean clinical attachment loss (CAL) was associated with a -3.33% decrease in % predicted FEV1.
  • This association remained significant after adjusting for confounding variables (p < 0.001).
  • Systemic inflammation (hs-CRP) played a minor role in mediating the observed relationship (9%).

Conclusions:

  • Chronic periodontitis is significantly associated with reduced respiratory function in this cohort of older men.
  • The findings highlight a potential link between oral health status and lung health.
  • Further research may elucidate causal pathways and inform integrated health strategies.