Medically reviewed by Michael Menna, DO Key Takeaways The circulatory system carries oxygen and nutrients throughout the body and removes waste.The lymphatic system helps fight disease by creating and ...

Leonardo da Vinci’s study of human anatomy combine scientific exploration with expert artistry. Leonardo da Vinci resumes his investigation into human anatomy, merging rigorous scientific exploration ...

An organ is a group of tissues that work together to perform a specific task in the body, such as digesting nutrients or producing chemical messengers that enable brain cells to communicate. Although ...