Pulmonary stretch receptors

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Pulmonary stretch receptors are mechanoreceptors found in the lungs.

When the lung expands, the receptors initiate the Hering-Breuer reflex, which reduces the respiratory rate. This signal is transmitted by vagus nerve. Increased firing from the stretch receptors also increases production of pulmonary surfactant. Intercostal muscles and thoracic diaphragm receive impulses from the respiratory center, stretch receptors in the lungs send impulses to the respiratory center giving information about the state of the lungs.

## See also[edit]

* Stretch receptor

## External links[edit]

* Pulmonary+stretch+receptors at the U.S. National Library of Medicine Medical Subject Headings (MeSH)

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Respiratory physiology

Respiration|

* breath
* inhalation
* exhalation
* obligate nasal breathing
* respiratory rate
* respirometer
* pulmonary surfactant
* compliance
* elastic recoil
* hysteresivity
* airway resistance
* bronchial
* hyperresponsiveness
* constriction
* dilatation
* mechanical ventilation

Control|

* pons
* pneumotaxic center
* apneustic center
* medulla
* dorsal respiratory group
* ventral respiratory group
* chemoreceptors
* central
* peripheral
* pulmonary stretch receptors
* Hering–Breuer reflex

Lung volumes|

* VC
* FRC
* Vt
* dead space
* CC
* PEF

calculations

respiratory minute volume
FEV1/FVC ratio

Lung function tests

spirometry
body plethysmography
peak flow meter
nitrogen washout

Circulation|

* pulmonary circulation
* hypoxic pulmonary vasoconstriction
* pulmonary shunt

Interactions|

* ventilation (V)
* Perfusion (Q)
* Ventilation/perfusion ratio
* V/Q scan
* zones of the lung
* gas exchange
* pulmonary gas pressures
* alveolar gas equation
* alveolar–arterial gradient
* hemoglobin
* oxygen–hemoglobin dissociation curve (Oxygen saturation
* 2,3-BPG
* Bohr effect
* Haldane effect)
* carbonic anhydrase (chloride shift)
* oxyhemoglobin
* respiratory quotient
* arterial blood gas
* diffusion capacity (DLCO)

Insufficiency|

* high altitude
* death zone
* oxygen toxicity
* hypoxia

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