Cardiac response to stimulation and stress in the American alligator (Alligator mississippiensis)

Autor:	Bruce A. Young, Lucas Knoche, Joshua Blanchard, Tatyana Kondrashova, James Potter
Rok vydání:	2020
Předmět:	Cardiac response medicine.medical_specialty Endocrinology biology Internal medicine biology.animal Alligator medicine Animal Science and Zoology Stimulation American alligator biology.organism_classification Ecology Evolution Behavior and Systematics
Zdroj:	Amphibia-Reptilia. 41:547-551
ISSN:	1568-5381 0173-5373
DOI:	10.1163/15685381-bja10013
Popis:	Previous descriptions of the direction (tachycardia versus bradycardia), magnitude, and duration of the cardiac stimulation/stress response of the American alligator (Alligator mississippiensis) have been contradictory. Superficial EKG leads were used to quantify heart rate while presenting a graded series of stimuli to a cohort of 5 sub-adult alligators. Only tachycardic responses were recorded. Stress (manual restraint and transport) induced a nearly 3-fold increase over the resting heart rate (∼17 bpm), which decreased only 7 bpm over 40 minutes in a stimulus-free environment. Lower-level stimulation (i.e., exposure to room light) produced a significantly smaller response than did higher-level stimulation (i.e., physical contact), both responses were transitory, lasting approximately 120 s.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a21fc4d2bcab8ed23f97b8375c042596 https://doi.org/10.1163/15685381-bja10013 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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