Blood
Red Blood Cell
Biconcave disc-shaped cell that carries oxygen via hemoglobin; lacks a nucleus in mammals.
Standard cell atlas
Explore the architecture of life.
Curated cell guides for studying structure, function, and the relationships between them.
- Cell guides
- 30
- Categories
- 8
- Curricula
- 5
Atlas index
All 30 cells
Educational references · not diagnostic
Curriculum
Biological category
Blood
Lymphocyte
White blood cell (B or T) with a very large nucleus that drives adaptive immune responses.
Blood
Neutrophil
Granular white blood cell with a multilobed nucleus; first responder that phagocytoses bacteria.
Blood
Platelet
Small anucleate cell fragment that aggregates at vessel injuries to initiate blood clotting.
Blood
Macrophage
Large phagocytic immune cell that engulfs pathogens and debris using extensive pseudopodia.
Neural
Neuron
Specialized cell that transmits electrochemical signals. Has dendrites, cell body, and axon.
Neural
Myelinated Axon
Axon wrapped in myelin sheath segments separated by Nodes of Ranvier, enabling saltatory conduction.
Muscle
Skeletal Muscle Fiber
Long multinucleated muscle cell with striations from repeating sarcomeres along its myofibrils.
Muscle
Cardiac Muscle Cell
Branched striated cardiomyocyte with a single central nucleus and intercalated discs at cell junctions.
Connective
Adipocyte
Fat-storing cell almost entirely filled by a single lipid droplet, pushing the nucleus to the edge.