The different systems of the body interact with and rely upon one another. (Image credit: colematt via Getty Images) Immune: The immune system is the body's defense against bacteria, viruses and ...

The nervous system also operates the body’s essential physiologic functions, such as breathing and digestion. Read more . Learn more about these body parts in the nervous system: ...

In 2012, the glymphatic system—large tunnels surrounding the brain’s blood vessels that carry waste molecules toward the lymph nodes—gained recognition as an important part of the brain’s ...

The endocrine system consists of glands that make hormones. Your body uses hormones to control growth, development, metabolism, reproduction, mood, and other functions.

The human body is a wonderous thing, especially when you consider how intricate and efficient each bodily system is. For instance, an adult’s blood vessels could encircle the earth 2.5 times if ...

The largest muscle in the human body is the Gluteus Maximus. It is responsible for keeping your posture upright, and is the principal antigravity force working when you walk up stairs.

Some of our body parts don't make sense (Credit: Getty Images) From illogical reproductive organs to the fact we walk upright, the body has a few mystifying features. Why?

In 2024 quite a few body parts can be replaced with transplants or artificial equivalents. And science even has ways to give you a lot of those Lee Majors skills, though with some external ...

(Image credit: Toa55 via Getty Images) Skin wears the crown of the heaviest organ in the human body — however, there's some discrepancy as to how much it actually weighs. Some sources state that ...