A dinosaurs heart contains how many chambers?

Answer 1

The heart consists of 4 chambers - 2 atria and 2 ventricles. The smaller atria are about 1/3 the size and volume of the ventricles. The left ventricle is the largest chamber of the heart, with about 3 times more muscle mass than the right ventricle - both ventricles share a similar volume capacity. Due to the predominant size of the left ventricle, it is not surprising that 70% of all myocardial infarctions occur within the left ventricle. While the heart's chambers' primary purpose is to fulfill the mechanical function of pumping blood, other functions include influencing heart rate and serving several endocrine roles.

Answer 2

Dinosaurs, and especially theropod dinosaurs like T. rex were related to birds, which have a four-chambered heart. Mounting evidence suggests that dinosaurs were not sluggish like stereotypical reptiles but led active lives like birds and mammals. A four-chambered heart, which ensures more efficient circulation than a three-chambered heart, would have aided in sustaining such activity.

Answer 3

I am almost positive a dinosaur has a four chambered heart.

Answer 4

Reptiles have three or four chambered hearts. I looked it up and it said that and I also learned it at school in science.

Answer 5

Most reptiles have a three-chambered heart. A few types of reptiles have a four-chambered heart.