Pulmonary and cutaneous O2gas exchange: a student laboratory exercise in the frog
| العنوان: | Pulmonary and cutaneous O2gas exchange: a student laboratory exercise in the frog |
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| المؤلفون: | Suzanne Currie, Danielle M. LeBlanc, Glenn J. Tattersall |
| المصدر: | Advances in Physiology Education. 37:97-105 |
| بيانات النشر: | American Physiological Society, 2013. |
| سنة النشر: | 2013 |
| مصطلحات موضوعية: | Amphibian, Skin Physiological Phenomena, Lung, biology, Physiology, Ecology, General Medicine, Multiple modes, Education, Cutaneous respiration, medicine.anatomical_structure, biology.animal, medicine, Breathing, Respiratory system, Mammalian diving reflex |
| الوصف: | Gas exchange in animals is ultimately diffusion based, generally occurring across dedicated respiratory organs. In many aquatic amphibians, however, multiple modes of gas exchange exist, allowing for the partitioning of O2uptake and CO2excretion between respiratory organs with different efficiencies. For example, due to the physical properties of O2being vastly different between air and water phases, the lung and skin play disproportionately important roles in O2uptake. Many aquatic frogs are renowned for their cutaneous gas exchange capacity, where often the majority of CO2is excreted across the skin. Furthermore, the roles of these gas exchange organs change with the animal's behavior. Under diving conditions, most of the frog's gas exchange needs must be met by the skin. In this article, we describe an interactive undergraduate laboratory that allows a class of students to share equipment while assessing pulmonary and cutaneous respiration in frogs provided with an air/water choice and under enforced dive conditions. Concepts explored in this laboratory exercise include animal energetics, diving reflex, pulmonary and cutaneous gas exchange processes, diffusion-based gas flux, and O2debt. |
| تدمد: | 1522-1229 1043-4046 |
| DOI: | 10.1152/advan.00087.2012 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::3fa1ab96f8e55dca33eb4dac3f999716 https://doi.org/10.1152/advan.00087.2012 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi...........3fa1ab96f8e55dca33eb4dac3f999716 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15221229 10434046 |
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| DOI: | 10.1152/advan.00087.2012 |