EurekaMag
+ Most Popular
Cunninghamia lanceolata plantations in China
Mammalian lairs in paleo ecological studies and palynology
Studies on technological possibilities in utilization of anhydrous milk fat for production of recombined butter-like products
Should right-sided fibroelastomas be operated upon?
Large esophageal lipoma
Apoptosis in the mammalian thymus during normal histogenesis and under various in vitro and in vivo experimental conditions
Poissons characoides nouveaux ou non signales de l'Ilha do Bananal, Bresil
Desensitizing efficacy of Colgate Sensitive Maximum Strength and Fresh Mint Sensodyne dentifrices
Administration of fluid by subcutaneous infusion: revival of a forgotten method
Tundra mosquito control - an impossible dream?
Schizophrenia for primary care providers: how to contribute to the care of a vulnerable patient population
Geochemical pattern analysis; method of describing the Southeastern limestone regional aquifer system
Incidence of low birth weights in a hospital of Mexico City
Tabanidae
Graded management intensity of grassland systems for enhancing floristic diversity
Microbiology and biochemistry of cheese and fermented milk
The ember tetra: a new pygmy characid tetra from the Rio das Mortes, Brazil, Hyphessobrycon amandae sp. n. (Pisces, Characoidei)
Risk factors of contrast-induced nephropathy in patients after coronary artery intervention
Renovation of onsite domestic wastewater in a poorly drained soil
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Systolic blood pressure in a population of infants in the first year of life: the Brompton study
Haematological studies in rats fed with metanil yellow
Studies on pasteurellosis. I. A new species of Pasteurella encountered in chronic fowl cholera
Dormancy breaking and germination of Acacia salicina Lindl. seeds
therapy of lupus nephritis. a two-year prospective study

Distribution of ventilation in American alligator Alligator mississippiensis


Distribution of ventilation in American alligator Alligator mississippiensis



American Journal of Physiology 249(4 Pt 2): R477-R481



ISSN/ISBN: 0002-9513

PMID: 4051034

The regional distribution of ventilation in the multicameral lung of spontaneously ventilating alligators (Alligator mississippiensis) was studied with 133Xe scintigraphy. Frequent gamma camera images of 133Xe washin and washout were obtained and processed to allow evaluation of regional ventilation. Washin of 133Xe to equilibrium occurred in three to four breaths in anterior, central, and posterior compartments. Washin was most rapid in the posterior compartment and slowest in the anterior. The structure of the lungs and distribution of ventilation of inspired gas is consistent with the rapid radial spread of gas through a parallel arrangement of lung units surrounding the central intrapulmonary bronchus. Washout to equilibrium of 133Xe from all compartments occurred within three to four breaths. This rapid washin and washout of gas to all parts of the lung stands in contrast to the lungs of turtles and snakes, in which the caudal air sacs are relatively poorly ventilated.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 005181344

Download citation: RISBibTeXText

Related references

Effect of temperature on central chemical control of ventilation in the alligator Alligator mississippiensis. Journal of Experimental Biology 179: 261-272, 1993

Low cost of ventilation in the vagotomised alligator (Alligator mississippiensis). Respiratory Physiology and Neurobiology 159(1): 28-33, 2007

Ultrastructure of spermiogenesis in the American alligator, Alligator mississippiensis (Reptilia, Crocodylia, Alligatoridae). Journal of morphology 271(10): 1260-1271, 2010

Observations on territoriality in alligator mississippiensis the american alligator and other points concerning its habits and conservation. Gulf Research Reports 6(1): 79-81, 1977

Secretion of prostaglandin F-2alpha and E-2 in vitro by the uterus of the American alligator (Alligator mississippiensis). Journal of Experimental Zoology 264(3): 253-260, 1992

American alligator alligator mississippiensis food habits in north central florida usa. Journal of Wildlife Management 50(2): 348-353, 1986

Motor control of locomotor hindlimb posture in the American alligator (Alligator mississippiensis). Journal of Experimental Biology 206(Pt 23): 4327-4340, 2003

Second hatching of the American alligator Alligator mississippiensis at the Australian Reptile Park, Gosford. International Zoo Yearbook 21: 76-77, 1981

Observations on the role of the American alligator (Alligator mississippiensis) in the southern Florida wetlands. Copeia 4: 993-996, 1974

Growth and exercise endurance of American alligator (Alligator mississippiensis) with and without cardiac shunt. 2007

Recovery from an activity-induced metabolic acidosis in the American alligator, Alligator mississippiensis. Comparative Biochemistry and Physiology. Part A Molecular and Integrative Physiology 143(3): 368-374, 2006

Changes in cardiovascular control mechanisms during the embryonic development of the American alligator, Alligator mississippiensis. American Zoologist 40(6): 985, 2000

Terrestrial locomotion does not constrain venous return in the American alligator, Alligator mississippiensis. Journal of experimental biology 208(Pt 17): 3331-3339, 2005

Effects of bacterial lipopolysachharide on peripheral leukocytes in the American alligator (Alligator mississippiensis). Veterinary immunology and immunopathology 111(3-4): 315-320, 2006

Effects of feeding on arterial blood gases in the American alligator Alligator mississippiensis. Journal of Experimental Biology 203(Pt 20): 3117-3124, 2000