In an adult heart there should not be any direct connections between the two sides of the heart.
Yes. An adult amphibian has a three-chambered heart.
pumps
The wall between the two upper heart chambers is called the septum
4 chambers ... Within the adult heart are two parallel independent systems, each consisting of an auricle, or atrium, and a ventricle; from their anatomical positions these systems are often designated the right heart and the left heart.
2 loops and a heart with 3 chambers
i think it is 4 chambers in the Human Heart
The heart is divided by a partition or septum into two halves. The halves are in turn divided into chambers. The upper two chambers of the heart are called atria and the lower two chambers are called ventricles. The atria receive blood returning to the heart from the body and the ventricles pump blood from the heart to the body. Valves allow blood to flow in one direction between the chambers of the heart.
4 heart chambers
The heart of fish have two chambers. The heart of reptiles and amphibians have three chambers. The heart of mammals have four chambers.
single loop and heart with two chambers, like that of a fish.
No. The lower chambers of the heart are called the ventricles. The atria are the top chambers of the heart.
The atria are the two upper chambers and the ventricles are the two lower chambers.