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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- Posterior crico-arytenoid muscleMusculus cricoarytenoideus posteriorThe posterior crico-arytenoid is a fan-shaped laryngeal muscle on the back of the cricoid and the only one that opens the glottis.
- Posterior longitudinal ligamentLigamentum longitudinale posteriusA long band inside the vertebral canal running down the backs of the vertebral bodies and discs from the axis to the sacrum.
- Pretracheal nodesNodi pretrachealesLymph nodes in front of the cervical trachea, below the isthmus of the thyroid gland.
- Quadrangular membraneMembrana quadrangularisA thin sheet of fibroelastic tissue in each side wall of the upper larynx, stretched between the epiglottis and the arytenoid cartilage.
- 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 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.
- Right common carotid arteryCarotis communis dextraThe medial terminal branch of the brachiocephalic trunk, rising from behind the right sternoclavicular joint to divide beside the thyroid cartilage.
- Roots of brachial plexusRadices plexus brachialisThe five anterior rami, C5 to T1, that emerge between the scalene muscles and begin the nerve network to the upper limb.
- RotatoresThe rotatores are the deepest small back muscles, each running from a transverse process to the lamina of the vertebra just above.
- Scalenus anterior muscleMusculus scalenus anteriorScalenus anterior is a deep neck muscle running from the transverse processes of C3 to C6 down to the scalene tubercle of the first rib.
- Scalenus medius muscleMusculus scalenus mediusScalenus medius is the biggest and longest scalene muscle, running down the side of the neck from the cervical vertebrae to the first rib.
- Scalenus posterior muscleMusculus scalenus posteriorScalenus posterior, the least and deepest of the scalene muscles, runs from the lower cervical vertebrae to the second rib.
- 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.
- Spinalis capitis muscleMusculus spinalis capitisSpinalis capitis is a thin, often indistinct strand of the erector spinae that reaches the skull from the upper thoracic and lower cervical spines.
- Spinalis colli muscleMusculus spinalis colliSpinalis colli is an inconstant deep neck muscle running from the lower nuchal ligament and upper spines to the spine of C2.
- Splenius capitis muscleMusculus splenius capitisSplenius capitis is a broad strap muscle at the back of the neck that runs from the upper spines to the mastoid and occiput.
- Splenius colli muscleMusculus splenius colliSplenius colli is a strap muscle of the upper back and neck, running from mid-thoracic spines to the upper cervical transverse processes.
- Sternocleidomastoid muscleMusculus sternocleidomastoideusSternocleidomastoid is the prominent strap muscle running diagonally up the side of the neck from the sternum and clavicle to behind the ear.
- Sternohyoid muscleMusculus sternohyoideusSternohyoid is a thin infrahyoid strap muscle in the front of the neck, running from the back of the manubrium to the hyoid bone.
- Sternothyroid muscleMusculus sternothyreoideusSternothyroid is a broad infrahyoid strap muscle that runs from the back of the manubrium to the thyroid cartilage of the larynx.
- Straight part of cricothyroid musclePars recta musculi cricothyreoideiThe straight part of cricothyroid is the front, near-vertical portion of the cricothyroid muscle, linking the cricoid arch to the thyroid cartilage.
- Stylohyoid muscleMusculus stylohyoideusStylohyoid is a slender suprahyoid muscle running from the styloid process of the skull down to the hyoid bone.