How to use the 3D human body
- Drag to rotate, scroll or pinch to zoom, right-drag to pan. Use Front, Back, Left, Right and Top for standard anatomical views.
- The model stands in the anatomical position, so its left side appears on your right when you look at it from the front.
- Lower the Skin and Muscles sliders to see the organs, bones and vessels underneath. Clicking passes through faded layers.
- Arteries are red and veins blue. The pulmonary arteries are blue and pulmonary veins red because of the blood they carry. Portal veins are purple and nerves yellow.
Skin (integumentary system)
- Hair of head
- The hair of the head is made of keratinised hair shafts growing from follicles in the scalp.
- Pubic hair
- The pubic hair is terminal hair growing over the pubic region after puberty.
- Skin
- The skin is the body's largest organ, forming a protective covering.
Skeletal system
- Atlas
- The first cervical vertebra (C1), a ring-shaped bone that supports the skull.
- Axis
- The second cervical vertebra (C2), distinguished by a tooth-like upward projection called the dens.
- Clavicle
- The collarbone, an S-shaped long bone running between the sternum and the shoulder.
- Femur
- The thigh bone, the longest, heaviest and strongest bone in the body.
- Humerus
- The long bone of the upper arm.
- Maxilla
- The upper jaw bone, paired.
- Radius
- The lateral bone of the forearm.
- Scapula
- The shoulder blade, a flat triangular bone on the back of the thorax.
- Talus
- A tarsal bone that sits between the tibia and fibula above and the calcaneus below.
- Ulna
- The medial bone of the forearm.
Muscular system
- Diaphragm
- The dome-shaped muscle separating the thoracic and abdominal cavities and the main muscle of inspiration.
- Genioglossus
- The largest extrinsic tongue muscle, forming most of the tongue bulk.
- Gracilis
- A long, thin muscle on the medial side of the thigh.
- Pectineus
- A flat quadrangular muscle at the top of the medial thigh forming part of the floor of the femoral triangle.
- Piriformis
- A pear-shaped lateral rotator of the hip that passes through the greater sciatic foramen.
- Plantaris
- A small, inconstant calf muscle with a very long thin tendon.
- Psoas major
- A long muscle of the posterior abdominal wall that forms the main part of iliopsoas.
- Sartorius
- The longest muscle in the body, a strap-like muscle crossing the thigh obliquely.
- Soleus
- A broad flat calf muscle lying deep to gastrocnemius.
- Supinator
- A deep forearm muscle wrapping around the upper radius.
Nervous system
- Amygdala
- The amygdala is an almond-shaped nuclear complex in the medial temporal lobe that is central to processing emotionally significant stimuli.
- Cerebellum
- The cerebellum is the large structure at the back of the brain that coordinates movement, posture and balance and takes part in motor learning.
- Fornix of forebrain
- The fornix is a C-shaped white matter tract that carries the main output of the hippocampus.
- Hippocampus
- The hippocampus is a curved cortical structure in the medial temporal lobe that is essential for forming new long-term memories.
- Hypothalamus
- The hypothalamus is a small diencephalic region that regulates homeostasis, autonomic function and endocrine control.
- Insula
- The insula is a cortical region buried deep within the lateral sulcus, covered by the frontal, parietal and temporal opercula.
- Optic nerve
- The optic nerve (CN II) carries visual information from the retina to the brain.
- Pons
- The pons is the part of the brainstem between the midbrain and medulla that relays signals between the cerebrum and cerebellum.
- Precentral gyrus
- The precentral gyrus is the primary motor cortex of the frontal lobe.
- Trochlear nerve
- The trochlear nerve (CN IV) is a motor nerve supplying the superior oblique muscle of the eye.
Eye & ear system
- Choroid
- The choroid is the vascular, pigmented layer of the eye between the retina and the sclera.
- Cornea
- The cornea is the transparent front part of the outer coat of the eye and is the eye's major refractive surface.
- Iris
- The iris is the pigmented, contractile diaphragm in front of the lens that forms the pupil.
- Lacrimal canaliculus
- The lacrimal canaliculi are small ducts that drain tears from the eyelid margins to the lacrimal sac.
- Lacrimal gland
- The lacrimal gland is the main tear-secreting gland of the eye.
- Lens
- The lens is a transparent, biconvex structure behind the iris that focuses light on the retina.
- Nasolacrimal duct
- The nasolacrimal duct carries tears from the lacrimal sac into the nasal cavity.
- Optic part of retina
- The optic part of the retina is the light-sensitive neural layer lining the back of the eye.
- Sclera
- The sclera is the tough, white outer coat of the eyeball.
- Vitreous body
- The vitreous body is the clear gel filling the large space behind the lens.
Cardiovascular system
- Abdominal aorta
- The abdominal aorta is the part of the aorta that runs through the abdomen and supplies the abdominal organs, pelvis and lower limbs.
- Anterior cerebral artery
- The anterior cerebral artery is one of the two terminal branches of the internal carotid artery and supplies the medial surface of the cerebral hemisphere.
- Anterolateral central branch of middle cerebral artery
- These are the lenticulostriate arteries, small deep branches of the middle cerebral artery.
- Arch of aorta
- The aortic arch is the curved part of the aorta between the ascending and descending aorta, giving the great vessels to the head and arms.
- Common carotid artery
- The common carotid artery is the main artery of the neck and splits into the external and internal carotid arteries.
- Femoral artery
- The femoral artery is the main artery of the thigh, continuing the external iliac artery.
- Hepatic portal vein
- The hepatic portal vein carries nutrient-rich blood from the gut and spleen to the liver.
- Lumbar artery
- One of usually four pairs of segmental arteries arising from the back of the abdominal aorta.
- Portal vein
- The large vein carrying blood from the digestive organs to the liver.
- Pulmonary artery
- An artery carrying deoxygenated blood from the heart to a lung.
Respiratory system
- Arytenoid cartilage
- The arytenoid cartilages are a pair of pyramid-shaped cartilages at the back of the larynx.
- Cricoid cartilage
- The cricoid cartilage is a complete signet-ring-shaped cartilage forming the lower part of the larynx.
- Cuneiform cartilage
- The cuneiform cartilages are small rod-shaped cartilages in the aryepiglottic folds.
- Epiglottis
- The epiglottis is a leaf-shaped elastic cartilage that covers the laryngeal inlet during swallowing.
- Inferior lingular bronchial tree
- The inferior lingular bronchial tree is the segmental bronchus and its branches supplying a bronchopulmonary segment.
- Posterior basal segmental bronchial tree
- The posterior basal bronchial tree is the segmental bronchus and its branches supplying a bronchopulmonary segment.
- Superior lingular bronchial tree
- The superior lingular bronchial tree is the segmental bronchus and its branches supplying a bronchopulmonary segment.
- Superior segmental bronchial tree
- The superior bronchial tree is the segmental bronchus and its branches supplying a bronchopulmonary segment.
- Thyroid cartilage
- The thyroid cartilage is the largest cartilage of the larynx, forming the laryngeal prominence.
- Trachea
- The trachea (windpipe) is a flexible air tube extending from the larynx to the bronchi.
Digestive system
- Appendix
- The vermiform appendix is a narrow blind-ended tube arising from the cecum.
- Duodenum
- The duodenum is the first and shortest part of the small intestine, about 25 cm long and C-shaped.
- Esophagus
- The esophagus is a muscular tube about 25 cm long that carries swallowed food from the pharynx to the stomach.
- Gallbladder
- The gallbladder is a pear-shaped sac that stores and concentrates bile.
- Lower secondary canine tooth
- The lower canine tooth is a permanent tooth.
- Pancreas
- The pancreas is a soft, elongated gland with both exocrine and endocrine functions.
- Rectum
- The rectum is the final straight portion of the large intestine before the anal canal.
- Stomach
- The stomach is a J-shaped, expandable part of the digestive tract that mixes food with acid and enzymes.
- Tongue
- The tongue is a muscular organ of the mouth involved in taste, chewing, swallowing and speech.
- Upper secondary canine tooth
- The upper canine tooth is a permanent tooth.
Urinary system
- Kidney
- The kidney is a bean-shaped organ that filters blood to form urine and regulate fluid, electrolytes and blood pressure.
- Ureter
- The ureter is a muscular tube carrying urine from the renal pelvis to the urinary bladder.
- Urethra
- The urethra is the tube carrying urine out of the bladder; in males it also carries semen.
- Urinary bladder
- The urinary bladder is a hollow muscular organ that stores urine.
Reproductive system
- Corpus cavernosum of penis
- The corpora cavernosa are the paired columns of erectile tissue forming the dorsal part of the penis.
- Corpus spongiosum of penis
- The corpus spongiosum is the single column of erectile tissue surrounding the penile urethra.
- Deferent duct
- The deferent duct (vas deferens) is a thick-walled muscular tube carrying sperm from the epididymis toward the urethra.
- Epididymis
- The epididymis is a coiled tube on the posterior testis where sperm mature and are stored.
- Glans penis
- The glans penis is the cone-shaped distal end of the penis.
- Prostate
- The prostate is a walnut-sized gland surrounding the first part of the male urethra.
- Seminal vesicle
- The seminal vesicles are paired glands that produce much of the fluid of semen.
- Testis
- The testis is the male gonad that produces sperm and testosterone.
Endocrine system
- Adrenal gland
- The adrenal (suprarenal) gland is a small endocrine gland on top of each kidney.
- Pineal body
- The pineal body (gland) is a small pinecone-shaped endocrine gland in the brain.
- Pituitary gland
- The pituitary gland (hypophysis) is a pea-sized endocrine gland that regulates many other glands.
Lymphatic system
- Spleen
- The spleen is the largest lymphoid organ, filtering blood and supporting immune responses.