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Tolerance of acute hypercapnic acidosis by the European eel (Anguilla anguilla)
Abstract. European eels (Anguilla anguilla) were exposed sequentially to partial pressures of CO2 in the water (PwCO2) of 5, 10, 20, 40, 60 then 80 mm Hg (equivalent to 0.66–10.5 kPa), for 30 min atExpand
Control and interaction of the cardiovascular and respiratory systems in anuran amphibians.
In anuran amphibians, respiratory rhythm is generated within the central nervous system (CNS) and is modulated by chemo- and mechanoreceptors located in the vascular system and within the CNS. TheExpand
The differential cardio-respiratory responses to ambient hypoxia and systemic hypoxaemia in the South American lungfish, Lepidosiren paradoxa.
Lungfishes (Dipnoi) occupy an evolutionary transition between water and air breathing and possess well-developed lungs and reduced gills. The South American species, Lepidosiren paradoxa, is anExpand
Comparative cardiovascular physiology: future trends, opportunities and challenges
The inaugural Kjell Johansen Lecture in the Zoophysiology Department of Aarhus University (Aarhus, Denmark) afforded the opportunity for a focused workshop comprising comparative cardiovascularExpand
Interactive effects of mechano- and chemo-receptor inputs on cardiorespiratory outputs in the toad
Arterial blood pressure (P(b)), pulmocutaneous blood flow (Q(pc)), heart rate (f(H)), and fictive ventilation (motor activity in the Vth cranial nerve, V(int)), were recorded from decerebrated,Expand
The evolution of air-breathing in crustaceans: a functional analysis of branchial, cutaneous and pulmonary gas exchange
1. 1. The evolution of aerial gas exchange in land crabs is correlated with a transition from diffusion limited gills (L diff, 0.88–0.92), via a bimodal, diffusion limited “skin” (vascularizedExpand
Lung deflation stimulates fictive ventilation in decerebrated and unidirectionally ventilated toads.
We describe how the degree of lung inflation and hypercapnia influenced fictive ventilation in five toads (Bufo marinus) that were decerebrated and paralysed with roccuronium. Both lungs wereExpand
Adrenergic receptors, Na+/H+ exchange and volume regulation in lungfish erythrocytes
Abstract. Aestivation in African and South American lungfish (Protopterus and Lepidosiren, respectively) is associated with elevations of extracellular osmolarity. Osmotic shrinkage of ProtopterusExpand