Free 3D human anatomy

24 models, 926 named parts and 26.3 million triangles of measured surface. Rotate them, isolate any single structure, slice through the model and read its real dimensions.

Looking for one structure? Browse all 926 A to Z.

• Names from the source dataset, not written by us
• Nothing downloads until you ask for it
• No account, no paywall, no watermark

Full Body Explorer every system, one body Opens as the 203-bone skeleton, then adds muscles, organs, blood vessels, the brain and the body surface as 13 further models on top. All of them are segmented from the same body, so each one lands in place without any fitting.

Start from a part of the body

Each of these carries every system the region contains: bone, muscle, organs and vessels in one scene, composed from the models below rather than from new downloads.

• Head and Neck Explorer 261 structures Skull, cervical spine, teeth, brain and the muscles of the face and neck, in one scene. 4.64M triangles, from 5 models you may already have
• Thorax Explorer 130 structures Rib cage and thoracic spine with the heart, the great vessels and the chest wall inside them. 4.39M triangles, from 4 models you may already have
• Abdomen and Pelvis Explorer 76 structures Lumbar spine and pelvis with the organs, the abdominal wall and the pelvic floor. 3.86M triangles, from 4 models you may already have
• Back and Spine Explorer 85 structures The whole vertebral column with the back muscles over it, superficial to deep. 3.06M triangles, from 2 models you may already have
• Upper Limb Explorer 148 structures The arm’s bones with the shoulder, arm, forearm and hand muscles over them. 3.49M triangles, from 2 models you may already have
• Lower Limb Explorer 157 structures The leg’s bones with the hip, thigh, calf and foot muscles in their compartments. 4.69M triangles, from 2 models you may already have

Or one system at a time

• Full skeleton 248 parts 203 bones plus the cartilage and membranes the dataset files with them, both sides, frontal bone to toes. 23 skull and hyoid 24 vertebral column 27 thorax 4 shoulder girdle 60 upper limbs 3 pelvis 62 lower limbs 39 cartilage 6 membranes and ligaments 2.4 million triangles
• Heart 23 parts The heart wall, the tricuspid, mitral and pulmonary valves (the dataset has no aortic valve), the papillary muscles and the coronary arteries and veins, separable and nameable. 1 heart wall 5 papillary muscles 3 valves 9 coronary arteries 5 cardiac veins 487k triangles
• Great vessels 42 parts The aorta and its named branches, both venae cavae, the pulmonary vessels and the renal, mesenteric, carotid and iliac vessels, each separable. 3 aorta 5 arteries to head and arms 8 abdominal arteries 6 pelvic arteries 2 pulmonary vessels 8 venae cavae and tributaries 4 abdominal veins 6 pelvic veins 270k triangles
• Chest and abdominal organs 31 parts Lungs, airway, the whole gut from oesophagus to rectum, liver, pancreas, spleen, kidneys and bladder, each one separable. 5 lungs 2 airway 10 digestive tract 4 liver, gallbladder and pancreas 5 urinary 5 spleen, adrenals and thymus 819k triangles
• Head and neck muscles 100 parts The 99 muscle meshes BodyParts3D publishes for the head and neck: facial expression, mastication, the hyoid groups and the deep neck, each one separable. 7 scalp and epicranius 33 facial expression 12 mastication 4 superficial neck 10 suprahyoid 8 infrahyoid 26 deep and suboccipital neck 2.1 million triangles
• Lower limb muscles 126 parts 122 muscle meshes across both lower limbs, with the Achilles tendons and iliotibial tracts, banded by compartment. 20 gluteal and deep hip 4 iliopsoas 10 anterior thigh 12 medial thigh 8 posterior thigh 8 anterior leg 4 lateral leg 18 posterior leg 40 foot 2 fascia and tendon 4.6 million triangles
• Upper limb muscles 116 parts 114 muscle meshes across both upper limbs, from the pectoral group and rotator cuff to the intrinsic muscles of the hand. 12 pectoral girdle 16 rotator cuff, deltoid and teres major 8 anterior arm 8 posterior arm 22 anterior forearm 24 posterior forearm 24 hand 2 retinaculum 3.3 million triangles
• Chest wall muscles 10 parts The diaphragm, all three intercostal layers, the levatores costarum and transversus thoracis, as the dataset publishes them. 1 diaphragm 3 intercostals 6 levatores and transversus 2.6 million triangles
• Abdominal and pelvic floor muscles 25 parts The abdominal wall in layers from rectus abdominis to transversus abdominis, with the pelvic floor beneath it. 12 abdominal wall 9 pelvic floor 4 aponeurosis and ligament 2.9 million triangles
• Back muscles 58 parts 58 muscle meshes of the back in six layers, from trapezius down to the rotatores and interspinales. 14 superficial layer 4 intermediate layer 4 splenius 16 erector spinae 13 transversospinal 7 segmental 2.8 million triangles
• Body surface 4 parts The whole body surface as one closed sheet, with the scalp, eyebrow and body hair the dataset publishes alongside it. 1 skin 3 hair 1.7 million triangles
• Brain 101 parts 101 structures: the cortical gyri by lobe, the limbic structures, basal ganglia, thalamus, brainstem, cerebellum, ventricles, the pituitary and the visual pathway from eyeball to optic tract. 7 frontal cortex 8 parietal cortex 14 temporal cortex and insula 2 occipital lobe 20 limbic and midline structures 15 basal ganglia, thalamus and hypothalamus 13 brainstem 1 cerebellum 4 white matter 9 ventricles and choroid plexus 2 pituitary and pineal 6 optic pathway 2.1 million triangles
• Teeth 30 parts The 28 permanent teeth of this body, which has no third molars, as separate meshes banded by class, with the gums of both jaws. 8 incisors 4 canines 8 premolars 8 molars 2 gums 218k triangles
• Male reproductive organs 15 parts Testes, epididymides, deferent ducts, seminal vesicles and prostate, with the pelvic floor muscles around the prostate. 4 testes and epididymides 5 ducts, seminal vesicles and prostate 3 penis 3 pelvic floor muscles 71k triangles
• Skull 23 parts All 22 skull bones separated, plus the hyoid. The sutured vault comes apart, which is the thing an intact specimen cannot show you. 6 cranial vault 3 skull base 12 facial bones 2 jaw and hyoid 249k triangles
• Cervical spine and skull base 10 parts The seven neck vertebrae with the occipital and temporal bones above them, so the joints that nod and rotate the head are both visible. 3 skull base 2 atlas and axis 5 cervical vertebrae 89k triangles
• Rib cage and thoracic spine 55 parts All 24 ribs separated, with the twelve thoracic vertebrae they hinge on and a sternum in its three real pieces. 12 thoracic vertebrae 3 sternum 24 ribs 16 costal cartilage 990k triangles
• Vertebral column and pelvis 27 parts Every movable vertebra from the atlas down, the sacrum, and both hip bones, with the spinal curves visible from the side. 7 cervical 12 thoracic 5 lumbar 3 sacrum and pelvis 267k triangles
• Lumbar spine and pelvis 8 parts Five lumbar vertebrae, the sacrum and both hip bones, so the joint that carries the whole upper body is visible from every side. 5 lumbar vertebrae 1 sacrum 2 hip bones 131k triangles
• Right upper limb 32 parts Scapula to fingertips in one model, so the scapula’s size and the length of the levers below it are finally to scale. 2 shoulder girdle 1 arm 2 forearm 27 hand 177k triangles
• Right lower limb 31 parts Hip bone to toes in one model, which is the only way to see how much longer the thigh lever is than the foot it lands on. 1 hip bone 2 thigh 2 lower leg 26 foot 92k triangles
• Right ankle and foot 28 parts All 26 bones of the foot, including the seven tarsals that are hardest to learn from a flat diagram, with the tibia and fibula above them. 2 leg 7 tarsals 5 metatarsals 14 phalanges 68k triangles
• Right hand and wrist 29 parts All 27 bones of the hand with the eight carpals separated, which is the part no flat diagram makes clear, and the radius and ulna behind them. 2 forearm 8 carpals 5 metacarpals 14 phalanges 43k triangles
• Right knee and leg bones 4 parts The whole femur, tibia and fibula with the patella, so the knee, where the femur, tibia and patella meet, is seen in the context of the whole bones. 1 thigh 1 sesamoid 2 lower leg 26k triangles

How these work

Measured, not drawn

Every surface is segmented from imaging of a real adult body. Shapes are measurements, which is the reason to prefer them over an illustration. It also means they are one person’s body rather than an average, and faint stepping on some surfaces is the scan’s resolution showing through.

Nothing loads until you ask

The mesh and the 3D engine are fetched on a button press, never on page load, so these pages cost the same as any other until you want the model. The download is checksummed before anything is drawn, so a half-finished transfer cannot show you an incomplete model.

Colour is a choice, and labelled as one

The file format carries geometry and no colour at all. A hue per anatomical group is the convention printed atlases use, because similar structures in contact cannot otherwise be told apart. The other scheme colours by tissue, one colour for each, so bone, muscle, organ, vessel and nerve read as themselves and neighbouring bones are much harder to tell apart. The viewer says which is on.

What the source leaves out

Some tissue is not in BodyParts3D at all, so it cannot be shown here. Its parts list has no menisci, cruciate ligaments or articular cartilage, and the only ligaments it names are the inguinal and long plantar ligaments of each side. Its only nerves are the optic nerves, and its vessels go no further towards the limbs than the subclavians and the iliacs, so no arm or leg has either. The page for each model says what is missing from it.

Meshes from BodyParts3D, © The Database Center for Life Science, under Creative Commons Attribution 4.0 International. Converted meshes are shared under the same licence.