| SNAP | sensory nerve action potential; S-nitroso-N-acetylpenicillamine |
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| SNCS | sensory nerve conduction studies |
| SNCV | sensory nerve conduction velocity |
| SNES | suprascapular nerve entrapment syndrome |
| SNR | selective nerve root [block]; signal-to-noise ratio; substantia nigra zona reticulata; supernumerary... |
levater labii superioris muscle
levator palpebrae superioris
| pharyngeal branch of vagus nerve | <anatomy, nerve> Conveys motor fibres from the cranial root of the accessory nerve to the pharyngeal constrictor muscles, the intrinsic muscles of the soft palate and the levator palati muscle; may also bring some general sensory fibres to the pharyngeal plexus. Synonym: rami pharyngei nervi vagi. (05 Mar 2000) |
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| Rouget's muscle | The circular fibres of the ciliary muscle. Synonym: fibrae circulares, Muller's fibres, Muller's muscle, Rouget's muscle. (05 Mar 2000) |
| round pronator muscle | <anatomy, muscle> Origin, superficial (humeral) head (ulnar) from the common flexor origin on the medial epicondyle of the humerus, deep (ulnar) head from the medial side of the coronoid process of the ulna; insertion, middle of the lateral surface of the radius; action, pronates forearm; nerve supply, median. Synonym: musculus pronator teres, musculus pronator radii teres, round pronator muscle. (05 Mar 2000) |
| ciliary muscle | <anatomy> The smooth muscle of the ciliary body; it consists of circular fibres (Muller's muscle) and radiating fibres (meridional fibres, or Brucke's muscle); action, in contracting, its diameter is reduced (like a sphincter), reducing tensile (stretching) forces on lens, allowing it to thicken for near vision (accommodation). Synonym: musculus ciliaris, Bowman's muscle, ciliary ligament. (05 Mar 2000) |
| middle cervical cardiac nerve | <anatomy, nerve> One of the cardiopulmonary splanchnic nerves conveying postsynaptic sympathetic fibres running downward, from the middle cervical ganglion along the subclavian artery (on the left) or the brachiocephalic (on the right side) to join the cardiac plexus. Synonym: nervus cardiacus cervicalis medius. (05 Mar 2000) |
| middle constrictor muscle of pharynx | Origin, stylohyoid ligament, lesser cornu of the hyoid bone (chondropharyngeal part) and greater cornu of the hyoid bone (ceratopharyngeal part); insertion, pharyngeal raphe in the posterior wall of the pharynx; action, narrows pharynx in the act of swallowing; nerve supply, pharyngeal plexus. Synonym: musculus constrictor pharyngis medius. (05 Mar 2000) |
| middle meningeal branch of maxillary nerve | <anatomy, nerve> Recurrent branch of maxillary nerve distributed with the anterior branch of the middle meningeal arteyr to the meninges of the anterior portion of the middle cranial fossa. Synonym: ramus meningeus medius nervi maxillaris, middle meningeal nerve. (05 Mar 2000) |
| middle meningeal nerve | <anatomy, nerve> Recurrent branch of maxillary nerve distributed with the anterior branch of the middle meningeal arteyr to the meninges of the anterior portion of the middle cranial fossa. Synonym: ramus meningeus medius nervi maxillaris, middle meningeal nerve. (05 Mar 2000) |
| Ruysch's muscle | <anatomy> The muscular tissue of the fundus of the uterus. (05 Mar 2000) |
| circumflex nerve | <anatomy, nerve> Arises from the posterior cord of the brachial plexus in the axilla, passes laterally and posteriorly through quadrangular space with the posterior circumflex artery, winding round the surgical neck of the humerus to supply the deltoid and teres minor muscles, terminating as the superior lateral brachial cutaneous nerve. Synonym: nervus axillaris, circumflex nerve. (05 Mar 2000) |
| middle scalene muscle | <anatomy, muscle> Origin, costotransverse lamellae of transverse processes of second to sixth cervical vertebrae; insertion, first rib posterior to subclavian artery; action, raises first rib; nerve supply, cervical plexus. Synonym: musculus scalenus medius, middle scalene muscle. (05 Mar 2000) |
| middle superior alveolar branch of infraorbital nerve | <anatomy, nerve> The middle superior alveolar branch, a branch of the superior alveolar nerve that contributes to the superior dental plexus. Synonym: ramus alveolaris superior medius nervi infraorbitalis. (05 Mar 2000) |
| middle supraclavicular nerve | <anatomy, nerve> One of several nerves arising from the C-3-C-4 part of the cervical plexus which run across the top of the shoulder and pass down across the clavicle to supply the skin of the top of the shoulder and in the infraclavicular region. Synonym: nervus supraclavicularis intermedius, middle supraclavicular nerve. (05 Mar 2000) |
| clavicular part of pectoralis major muscle | pars clavicularis musculi pectoralis majoris, clavicular head of pectoralis major |
| phrenic nerve | <anatomy, nerve> The motor nerve of the diaphragm. The phrenic nerve fibres originate in the cervical spinal column (mostly c4) and travel through the cervical plexus to the diaphragm. (12 Dec 1998) |