Foramen of Panizza is found in the heart of

The correct answer is Crocodiles

Explanation:

• The foramen of Panizza is a unique anatomical feature found in the heart of crocodilians, a group that includes crocodiles, alligators, caimans, and gharials.
• This structure is a small opening or channel that connects the left and right aortae near the base of the heart.
• It plays a crucial role in regulating blood flow and allows crocodiles to efficiently manage oxygenated and deoxygenated blood circulation, especially during diving or when submerged underwater.

Fig: Crocodile heart

Key Points about the Foramen of Panizza:

• The foramen of Panizza is not found in other groups of animals, making it a distinctive feature of crocodilian anatomy.
• This structure allows for the mixing or bypassing of oxygenated and deoxygenated blood. During diving, crocodiles can redirect blood flow to prioritize oxygen delivery to essential organs like the brain and heart while reducing blood flow to the lungs.
• Crocodiles are often submerged for extended periods. The foramen of Panizza enables them to conserve oxygen and remain underwater for longer durations.