Learn all about the human body's many systems and some of its individual organs, both vital and vestigial. When you purchase through links on our site, we may earn an affiliate commission.

The human body ... than a trillion different scents; and a human heart beats more than 3 billion times in an average lifespan. But among the most impressive systems of the body is the ...

The human body is made up of interconnected systems, such as the skeletal ... Organs are structures made up of different types of tissues that work together. There are body cavities that house ...

You have 3 different types of muscle ... vary depending on where it’s found in the body. Let’s look at some functions of smooth muscle by system: Smooth muscle is also involved in some ...

researchers identified a new type of life form in the human body, which they called "Obelisks," that appeared similar to viruses but with multiple key differences that make them a different type ...

What Is the Endocrine System? The endocrine system is a network of glands in your body that make the hormones ... osteoporosis, and type 2 diabetes as you age. No matter how old you are, stress ...

New research based on the findings, published in several papers Wednesday in Nature and its sister journals, represents a “leap in understanding of the human body,” according to the Human Cell ...

Researchers have created the largest atlas of human brain ... at how many different cell types there were,” says Siletti. Neurons — cells in the brain and nervous system that send and receive ...