| RMC | reticular magnocellular [nucleus]; right middle cerebral [artery] |
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| RMCA | right middle cerebral artery |
| TOF | 1) Tetralogy Of Fallot ? CIx of Corrective Op ... |
| AICA | anterior inferior cerebellar artery; anterior inferior communicating artery |
| ALCAPA | anomalous origin of left coronary artery from pulmonary artery |
| middle atlantoepistrophic joint | A pivot synovial joint between the dens of the axis and the ring formed by the anterior arch and the transverse ligament of the atlas. Synonym: articulatio atlantoaxialis mediana, Cruveilhier's joint, middle atlantoepistrophic joint. (05 Mar 2000) |
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| middle axillary line | A vertical line intersecting a point midway between the anterior and posterior axillary folds or lines. Synonym: linea axillaris media, linea medio-axillaris, middle axillary line. (05 Mar 2000) |
| middle cardiac vein | <anatomy, vein> Begins at the apex of the heart (where it anastomoses with the great cardiac vein), and ascends within the posterior interventricular sulcus to the coronary sinus. Synonym: vena cordis media, inferior cardiac vein. (05 Mar 2000) |
| middle carpal joint | The synovial joint between the proximal and distal rows of carpal bones. Synonym: articulatio mediocarpea, middle carpal joint. (05 Mar 2000) |
| middle cells | The middle group of air cells of the ethmoidal sinus's; each sinus communicates with the middle meatus of the nasal cavity. Synonym: sinus ethmoidales mediae, cellulae mediae, middle cells, middle ethmoidal sinuses. (05 Mar 2000) |
| middle cerebellar peduncle | The largest of three paired cerebellar peduncles, composed mainly of fibres that originate in the pontine nuclei, cross the midline in the ventral part of pons, and emerge on the opposite side as a massive bundle arching dorsally along the lateral side of the pontine tegmentum into the cerebellum; its fibres are distributed chiefly to the cortex of the cerebellar hemisphere. Synonym: pedunculus cerebellaris medius, brachium pontis. (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 cervical fascia | The layer of fascia investing the infrahyoid muscles and contributing to the formation of the carotid sheath. Synonym: lamina pretrachealis, middle cervical fascia, Porter's fascia, pretracheal layer. (05 Mar 2000) |
| middle cervical ganglion | A sympathetic ganglion, of small size and sometimes absent; located at the level of the cricoid cartilage. Synonym: ganglion cervicale medium. (05 Mar 2000) |
| middle cluneal nerves | Terminal branches of the dorsal primary rami of the sacral nerves, supplying the skin of the mid-gluteal region. Synonym: nervi clunium medii. (05 Mar 2000) |
| middle colic lymph nodes | Nodes along the middle colic artery and its branches that drain the right colic flexure and most of the transverse colon. Synonym: nodi lymphatici colici medii. (05 Mar 2000) |
| middle colic vein | <anatomy, vein> The tributary of the superior mesenteric vein that carries drainage of the transverse colon and accompanies the middle colic artery. Synonym: vena colica media. (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 costotransverse ligament | <anatomy> The ligament that connects the dorsal aspect of the neck of a rib to the ventral aspect of the corresponding transverse process. Synonym: ligamentum costotransversarium, ligamentum colli costae, middle costotransverse ligament. (05 Mar 2000) |
| middle cranial fossa | A butterfly-shaped portion of the internal base of the skull posterior to the sphenoidal ridges and limbus and anterior to the crests of the petrous part of the temporal bones and dorsum sellae; it lodges the temporal lobes of the brain in the lateral portions, and the hypophysis centrally. Synonym: fossa cranii media. (05 Mar 2000) |