Researchers have created an early map of some of the human body's estimated ... seeking to understand the structure, location and function of the many types of brain cells. A new gut microbiome ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Each human is a ...

When cells express specific genes that characterise a certain type of cell we say that a cell has become differentiated. Structure and ... are known as mutations. Human genomics The human genome ...

The capillaries connect the two types of blood vessel and molecules are exchanged between the blood and the cells across their walls. Structure and function of the heart In this Higher Human ...

Scientists have developed human stem cell models containing the notochord, a critical tissue that guides spine and nervous system formation during embryonic development.