Question

How many hearts does a shark have?

Answer 1

Shark:

1. Sharks are cartilaginous elasmobranch fish with unfused pectoral fins and five to seven gill slits on the sides of the head.
2. Sharks have a single circulatory system and single two-chambered heart.
3. The heart circulates blood to the gills, which oxygenate it. This oxygen-rich blood is delivered throughout the body and to the tissues before returning to the heart.
4. When the heart beats, deoxygenated blood enters the sinus venosus. After that, the blood goes from the atrium to the ventricle, where it is discharged into the conus arteriosus and exits the heart.
5. An atrium (also known as the auricle) and a ventricle are the two chambers of a shark's heart. An S-shaped tube in the shark's head houses the shark's heart.