Cell

A cell is the basic structural and functional unit of living organisms.

Cells contain structures and molecular systems that allow them to obtain and use energy, maintain internal conditions, respond to signals, and perform specialized functions.

Some organisms consist of a single cell, while multicellular organisms contain many specialized cell types organized into tissues, organs, and organ systems.

QUICK FACT

The human body contains many different specialized cell types, including neurons, muscle cells, immune cells, and skin cells.

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Clinical & Educational Context

Discussed in Health Articles & Guides

Explore how "Cell" is covered across our evidence-based editorial guides:

5 Articles
Unstraight Lines

Kill Me a Little, Kill It More

Some medicines exploit differences between harmful organisms and human cells.
The Hard Parts of Medicine

Do You Need Supplements? What Medical Research Says

Vitamins help regulate processes such as energy metabolism, blood cell formation, immune function, and tissue maintenance.
Medicine without Jargon

The Best Birthing Position: What Current Evidence Says

A woman in labor is ready to push. One nurse encourages her to lie back, while another suggests turning onto...
Health in the Wild

Food Packaging: Unexpected Food Safety Risks you need to know

You probably think about what is in your food, but how often do you think about what your food is...
Health in the Wild

Noise Pollution 101: Everything You Need to Know

The inner ear contains delicate sensory cells involved in hearing.