AnatomyDB

111 anatomical structures explained. From major organs to cellular components, explore the human body in detail.

Major Organs

Heart

OrganCardiovascular

The heart is a muscular organ about the size of a fist, located in the mediastinum between the lungs. It pumps approximately 5 lit...

Brain

OrganNervous

The brain is the most complex organ, containing approximately 86 billion neurons and a roughly similar number of glial and other n...

Lungs

OrganRespiratory

The lungs are paired organs in the thoracic cavity separated by the mediastinum. The right lung has three lobes upper, middle, low...

Liver

OrganDigestive

The liver is the largest internal organ, weighing approximately 1.5 kg in adults, located in the right upper quadrant beneath the ...

Kidneys

OrganUrinary

The kidneys are paired bean shaped organs approximately 10 to 12 cm long, located retroperitoneally at the level of T12 to L3 vert...

Eye

OrganSensory

The eye is a sphere approximately 24 mm in diameter with three layers. The outer fibrous layer includes the cornea transparent, av...

Ear

OrganSensory

The ear has three divisions. The outer ear includes the auricle pinna collecting sound and the external auditory canal 2.5 cm lead...

Stomach

OrganDigestive

The stomach is a J shaped muscular organ between the esophagus and duodenum, with four regions cardia, fundus, body, and pylorus. ...

Skin

OrganIntegumentary

The skin is the largest organ, weighing several kilograms and covering roughly 2 square meters in adults. It has three layers: epi...

Bones Skeletal System

SystemMusculoskeletal

The adult skeleton has 206 bones: 80 axial skull, vertebral column, ribs, sternum and 126 appendicular limbs, girdles. Bone types ...

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