… have been proposed to contribute to vasoconstriction, including … cells and are not considered
to be major contributors to HPV. … of heterogeneity in network structure and flows does not …

… septa further contribute to reduce capillary blood flow and … (nitric oxide [NO], prostacyclin [PGI
2 ]) and vasoconstrictors (… patients has been attributed to greater heterogeneity in V/Q ratios …

… In a recent study using lung protective ventilation with PEEP, a heterogeneous … of blood
flow to poorly ventilated areas, and impaired hypoxic pulmonary vasoconstriction can lead to V/Q …

… blood flow heterogeneity via arterial spin labeling. Their results show that under mild hyperoxia
that there was little change in the distribution of blood flow … a sheet flow model would add …

… Hypoxic pulmonary vasoconstriction is one such important … There are several factors that
contribute to this uncertainty … have observed substantial blood flow heterogeneity within an …

… lead to intrinsic heterogeneity in the microcirculation. Arrows indicate directions of blood
flow. … demand, such as exercise, hypoxic pulmonary vasoconstriction (HPV) acts to improve …

… hypoxic pulmonary vasoconstriction. These data indicate that Ca 2+ influx in pulmonary
arterial … 2+ entry pathways all contribute to initiation of hypoxic pulmonary vasoconstriction. The …

… of the macromolecular structure of lung tissue. This review, … the heterogeneity in morphology,
mechanical features and perfusion of the terminal respiratory units might impact on lung …

… septa slightly contribute to reduce capillary blood flow and to … (nitric oxide [NO], prostacyclin
[PGI2]) and vasoconstrictors (… was paralleled by heterogeneous regional hypoxia and V/Q …

… failure, and contributing to … does not differ between systemic and pulmonary arteries.
Therefore, this mechanism cannot explain the heterogeneous response to hypoxia (vasoconstriction …