Males tend to be bigger than females, and have have a larger proportion of muscle mass. As a consequence, males need bigger hearts to supply the bigger amount of muscle.
The human stomach is bigger than the fetal pig's. This of course is if the human is an adult human.
four
The ossa coxae (containing the ililum, ishium, and pubic bones) are not fused in a fetal skeleton like in an adult human.
The fetal pig has a four-chambered heart and not three-chambered. The chambers are divided between the upper and the lower chambers.
A fetal chick grows into a chicken, whereas a fetal human grows into a human.
The size of your palm
In an adult heart there should not be any direct connections between the two sides of the heart.
Two characteristics of the fetal skeleton skull that differ from the adult skeleton are the presence of fontanelles (soft spots) in the fetal skull that allow for flexibility during childbirth, and the incomplete fusion of cranial bones in the fetus compared to the fully fused bones in adults.
For an average adult human, 5 percent of the blood supply enters or leaves the heart with each heartbeat.
A frog's heart has only three chambers, and a human's heart has four chambers.
Believe it or not, it's an adult human heart
The average human adult heart is about the size of a closed fist. It weighs approximately 8-10 ounces (about 230-280 grams) and is roughly the size of a large lemon.