The Anthromica Library
The human body one structure at a time. Every page has a 3D model you can turn, with its parts numbered on it, where it sits, what it does and what supplies it.
961–984 of 1303
- RadiusThe radius is the lateral bone of the forearm, on the thumb side, narrow at the elbow and broad at the wrist.
- Rectus abdominis muscleMusculus rectus abdominisRectus abdominis is a long paired strap muscle lying either side of the midline in the front abdominal wall.
- Rectus anterior capitis muscleMusculus rectus capitis anteriorRectus capitis anterior is a short, flat muscle running from the front of the atlas to the skull base; it nods the head.
- Rectus femoris muscleMusculus rectus femorisRectus femoris is the straight, central part of the quadriceps group in the anterior thigh, crossing both the hip and the knee.
- Rectus lateralis capitis muscleMusculus rectus capitis lateralisRectus capitis lateralis is a short muscle joining the transverse process of the atlas to the jugular process of the occipital bone.
- Rectus posterior major capitis muscleMusculus rectus posterior major capitisRectus capitis posterior major is a suboccipital muscle that widens upwards from the spine of the axis to the occipital bone.
- Rectus posterior minor capitis muscleMusculus rectus posterior minor capitisRectus capitis posterior minor is a small suboccipital muscle running from the back of the atlas to the occipital bone near the midline.
- Recurrent interosseous arteryArteria interossea recurrensA small branch of the posterior interosseous artery that turns back up to the elbow, joining the anastomosis behind the lateral epicondyle.
- Red nucleusNucleus ruberAn oval, pinkish nucleus in the tegmentum of the upper midbrain, a relay between cerebellum, motor cortex and spinal cord.
- Renal pelvisPelvis renalisThe funnel-shaped upper end of the ureter, lying partly inside the renal sinus, where the major calyces unite to collect urine.
- RetinaThe thin, light-sensitive inner coat of the eyeball, lining the posterior segment and converting the focused image into signals carried by the optic nerve.
- Retro-aortic nodesNodi retroaorticiA few lumbar lymph nodes hidden behind the abdominal aorta, on the third and fourth lumbar vertebral bodies below the cisterna chyli.
- Retrocaecal nodesNodi retrocaecalesSmall lymph nodes behind the caecum, set along the posterior caecal artery in the right iliac fossa.
- Retrocaval nodesNodi retrocavalesLumbar lymph nodes lying behind the inferior vena cava, on the right psoas and the lumbar vertebral bodies.
- Retromandibular veinVena retromandibularisA vein inside the parotid gland behind the jaw, formed by the temporal and maxillary veins and dividing near the jaw angle.
- Retropharyngeal nodesNodi retropharyngeiA few lymph nodes behind the upper pharynx, in front of the atlas, draining the nose, nasopharynx and auditory tubes.
- Rhomboid major muscleMusculus rhomboideus majorRhomboid major is a flat, diamond-shaped muscle of the upper back that ties the scapula's medial border to the thoracic spine.
- Rhomboid minor muscleMusculus rhomboideus minorRhomboid minor is a small, flat upper back muscle running from the lowest neck spines to the scapula at the root of its spine.
- RibsCostaeThe ribs are the twelve pairs of curved bones that run from the thoracic spine around the chest, forming the rib cage that shields the heart and lungs.
- Right ascending lumbar veinVena lumbalis ascendens dextraA longitudinal vein on the right side of the lumbar vertebrae that connects the lumbar veins and ends by forming the azygos vein.
- Right atriumAtrium dextrumThe upper right chamber of the heart, receiving blood returning from the body and passing it through the tricuspid valve to the right ventricle.
- Right brachiocephalic veinVena brachiocephalica dextraA short, almost vertical vein behind the right sternoclavicular joint that meets its left partner to begin the superior vena cava.
- Right colic arteryArteria colica dextraA colic offshoot of the superior mesenteric artery, running rightwards on the posterior abdominal wall to feed the ascending colon and its flexure.
- Right colic nodesNodi colici dextriLymph nodes behind the peritoneum of the right flank, set along the right colic artery and draining the ascending colon.