Pulmonary stretch receptors

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. Increased firing from the stretch receptors also increases production of pulmonary surfactant. Intercostal muscles and diaphragm receive impulses from the respiratory centre, stretch receptors in the lungs send impulses to the respiratory centre giving information about the state of the lungs.

External links

Pulmonary stretch receptors at the US National Library of Medicine Medical Subject Headings (MeSH)

Respiratory physiology

Respiration	positive pressure ventilation breath (inhalation exhalation) respiratory rate respirometer pulmonary surfactant compliance elastic recoil hysteresivity airway resistance bronchial hyperresponsiveness bronchoconstriction/Bronchodilatation

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 methods of lung testing spirometry body plethysmography peak flow meter nitrogen washout

Circulation	pulmonary circulation hypoxic pulmonary vasoconstriction pulmonary shunt

Interactions	Perfusion (V) ventilation (V) ventilation/perfusion scan zones of the lung gas exchange pulmonary gas pressures alveolar gas equation alveolar–arterial gradient hemoglobin oxygen–haemoglobin 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 oxygen toxicity hypoxia

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Pulmonary stretch receptors

See also

External links