The foramen of Panizza named for anatomist Bartolomeo Panizza  is a hole that connects the left and right aorta as they leave the heart of all animals of the order Crocodilia. Crocodilians have a completely separated ventricle with deoxygenated blood from the body, or systemic circulation , in the right ventricle and oxygenated blood from the lungs, or pulmonary circulation , in the left ventricle, as in birds and mammals. Two vessels, the left aorta and the pulmonary artery, exit the right ventricle. Blood from the right ventricle goes to the lungs through the pulmonary artery, as in mammals and birds. However, when a unique active valve leading to the pulmonary artery contracts, pressure in the right ventricle can increase, and blood can leave the right ventricle, enter the left aortic arch, and therefore bypass the pulmonary circulation.
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File information. Structured data. Captions English Add a one-line explanation of what this file represents. Summary [ edit ] Description Foramen of Panizza-gl. Based on: K. Comparative anatomy, function, evolution. Fig I, the copyright holder of this work, hereby publish it under the following license:. You cannot overwrite this file. The following other wikis use this file: Usage on gl. Width Structured data Items portrayed in this file depicts. Namespaces File Discussion.
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Foramen of Panizza
Forame de Panizza