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.
1033–1056 of 1303
- Semimembranosus muscleMusculus semimembranosusThe broad, deep medial hamstring, running from the ischial tuberosity to the back of the medial tibial condyle.
- Semispinalis colli muscleMusculus semispinalis colliSemispinalis colli is a deep back muscle of the neck that runs from upper thoracic transverse processes to cervical spinous processes.
- Semispinalis thoracis muscleMusculus semispinalis thoracisSemispinalis thoracis is a deep back muscle of the mid-thorax, running from lower thoracic transverse processes to upper thoracic and lower cervical spines.
- Semitendinosus muscleMusculus semitendinosusThe superficial medial hamstring, a spindle-shaped belly ending in a long cord-like tendon that joins the pes anserinus below the knee.
- Sensory root of trigeminal nerveRadix sensoria nervi trigeminiThe large sensory root of the fifth cranial nerve, running from the trigeminal ganglion into the side of the pons.
- Septal branches of anterior interventricular arteryRami interventriculares septales rami interventricularis anterioris arteriae coronariae sinistraeShort perforating arteries that leave the anterior interventricular artery and pass straight into the interventricular septum of the heart.
- Septal branches of posterior ethmoidal arteryRami septales arteriae ethmoideae posteriorisSmall branches of the posterior ethmoidal artery that descend through the cribriform plate to the upper back part of the nasal septum.
- Septal leaflet of right atrioventricular valveCuspis septalis valvae atrioventricularis dextraeThe leaflet of the tricuspid valve attached along the interventricular septum, on the medial side of the right atrioventricular opening.
- Septal nucleiNuclei septalesA group of grey matter nuclei in the septal area below the front of the corpus callosum, linked to the hippocampus, hypothalamus and habenula.
- Septum pellucidumA thin, vertical, two-layered partition in the brain's midline that separates the front horns of the two lateral ventricles.
- Serratus anterior muscleMusculus serratus anteriorSerratus anterior is the broad, saw-edged muscle on the side of the chest that holds the scapula against the ribs and swings it forward.
- Serratus posterior inferior muscleMusculus serratus posterior inferiorSerratus posterior inferior is a thin, four-sided muscle where the thoracic back meets the lumbar back, pulling on the lower ribs.
- Serratus posterior superior muscleMusculus serratus posterior superiorSerratus posterior superior is a thin, four-sided muscle of the upper back that runs from the lower neck spines to the upper ribs.
- Sesamoid bones of footOssa sesamoidea pedisTwo small, pea-like bones under the head of the first metatarsal, set in the tendons of flexor hallucis brevis at the ball of the big toe.
- Short head of biceps brachiiCaput breve musculi bicipitis brachiiThe short head of biceps brachii starts on the coracoid process and forms the medial belly of the biceps on the front of the arm.
- Short head of biceps femorisCaput breve musculi bicipitis femorisThe femoral head of biceps femoris, arising from the linea aspera and joining the long head to insert on the fibula.
- Short posterior ciliary arteriesArteriae ciliares posteriores brevesNumerous small branches of the ophthalmic artery that pierce the sclera around the optic nerve to supply the choroid and optic disc.
- Sigmoid arteriesArteriae sigmoideaeA small group of branches of the inferior mesenteric artery that run in the sigmoid mesocolon to supply the lower descending and sigmoid colon.
- Sigmoid colonColon sigmoideumThe S-shaped loop of colon in the pelvis that links the descending colon to the rectum.
- Sigmoid nodesNodi sigmoideiLymph nodes in the sigmoid mesocolon along the sigmoid arteries, draining the sigmoid colon and the lower descending colon.
- Sigmoid sinusSinus sigmoideusAn S-shaped dural venous sinus on the inside of the skull behind the ear, carrying blood from the transverse sinus to the jugular foramen.
- Sigmoid veinsVenae sigmoideaeSeveral veins in the sigmoid mesocolon that drain the sigmoid colon into the inferior mesenteric vein, part of the hepatic portal system.
- Sinus of frontal boneSinus ossis frontalisThe pair of air-filled spaces inside the frontal bone behind the brow ridges, draining down into the middle meatus of the nose.
- Sinus of sphenoid boneSinus ossis sphenoideiThe pair of air spaces inside the sphenoid's body, deep behind the nose and just below the pituitary gland.