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.
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- Iliacus branch of iliolumbar arteryRamus iliacus arteriae iliolumbalisThe lower terminal branch of the iliolumbar artery, running into the iliac fossa to feed the iliacus muscle and the ilium.
- Iliococcygeus muscleMusculus iliococcygeusIliococcygeus is the thin, hindmost sheet of levator ani, stretched from the side wall of the pelvis to the coccyx.
- Iliolumbar arteryArteria iliolumbalisA paired branch of the internal iliac artery that climbs out of the pelvis behind psoas major to supply the iliac fossa and lower lumbar region.
- Iliolumbar veinVena iliolumbalisA paired vein of the posterior abdominal wall that accompanies the iliolumbar artery and drains the iliac fossa and lower lumbar region.
- Inferior diaphragmatic nodesNodi phrenici inferioresSmall lymph nodes on the abdominal surface of the diaphragm, near the aortic hiatus along the inferior phrenic arteries.
- Inferior epigastric arteryArteria epigastrica inferiorA paired branch of the external iliac artery that climbs the inner surface of the lower anterior abdominal wall within the rectus sheath.
- Inferior epigastric nodesNodi epigastrici inferioresA few lymph nodes beside the inferior epigastric vessels on the inner surface of the lower anterior abdominal wall.
- Inferior epigastric veinVena epigastrica inferiorA paired vein of the lower anterior abdominal wall that rises with the inferior epigastric artery and empties into the external iliac vein.
- Inferior gluteal arteryArteria glutea inferiorA paired branch of the internal iliac artery that leaves the pelvis below piriformis to supply the buttock and the posterior thigh.
- Inferior gluteal nodesNodi glutei inferioresA small group of deep pelvic lymph nodes lying beside the inferior gluteal artery as it leaves the pelvis below piriformis.
- Inferior gluteal veinsVenae gluteae inferioresPaired companion veins of the inferior gluteal artery that drain the lower buttock and back of the upper thigh into the internal iliac vein.
- Inferior leaflet of right atrioventricular valveCuspis inferior valvae atrioventricularis dextraeOne of the three flaps of the tricuspid valve, hanging from the lower part of the valve ring between right atrium and ventricle.
- Inferior lingular artery of left lungArteria lingularis inferior pulmonis sinistriThe pulmonary artery branch to the inferior lingular segment, the lowest part of the left upper lobe beside the heart.
- Inferior lobar artery of right lungArteria lobaris inferior pulmonis dextriThe final part of the right pulmonary artery, branching into the segmental arteries of the right lower lobe.
- Inferior mesenteric arteryArteria mesenterica inferiorThe unpaired artery of the hindgut, arising from the front of the abdominal aorta at the third lumbar level to feed the left colon and rectum.
- Inferior mesenteric veinVena mesenterica inferiorA vein of the posterior abdominal wall that drains the left colon, sigmoid colon and rectum and usually ends in the splenic vein.
- Inferior pancreatic nodesNodi pancreatici inferioresLymph nodes strung along the lower edge of the pancreas, collecting lymph from the head and body of the gland.
- Inferior pancreaticoduodenal arteryArteria pancreaticoduodenalisA small early offshoot of the superior mesenteric artery that curves round the pancreatic head to supply it and the lower duodenum.
- Inferior phrenic arteryArteria phrenica inferiorA paired artery leaving the aorta or coeliac trunk just below the diaphragm to supply its under surface and the suprarenal glands.
- Inferior suprarenal arteryArteria suprarenalis inferiorA paired small artery, usually from the renal artery, that climbs to the lower part of the suprarenal (adrenal) gland on each side.
- Inferior vein of left ventricleVena inferior ventriculi sinistriA vein on the diaphragmatic surface of the left ventricle that drains into the coronary sinus at the back of the heart.
- Inferior vena cava (abdominal part)Vena cava inferior (pars abdominis)The long abdominal stretch of the body's largest vein, rising from L5 on the right of the spine to the caval opening of the diaphragm.
- Inferior vena cava (thoracic part)Vena cava inferior (part thoracica)The very short final segment of the inferior vena cava, running from the diaphragm through the pericardium into the right atrium.
- Inguinal ligamentLigamentum inguinaleThe inguinal ligament is the firm band along the groin, stretched from the front of the iliac crest to the pubic tubercle.