| posterior articular surface of dens | The facet on the posterior surface of the dens of the axis that articulates with the transverse ligament of the atlas. Synonym: facies articularis posterior dentis. (05 Mar 2000) |
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| posterior asynclitism | Inclination of the foetal head so that the biparietal diameter is oblique in relation to the plane of the pelvic brim, the posterior parietal bone presenting to the parturient canal. Synonym: posterior asynclitism. (05 Mar 2000) |
| posterior atlanto-occipital membrane | The fibrous membrane that attaches between the posterior arch of the atlas and the posterior margin of the foramen magnum. Synonym: membrana atlanto-occipitalis posterior. (05 Mar 2000) |
| posterior auricular artery | <anatomy, artery> Origin: posterior aspect of external carotid just above the digastric muscle; course: ascends first between parotid gland and styloid process then between cartilage of auricle and the mastoid process; branches: muscular (digastric, stylohyoid and sternocleidomastoid), glandular (parotid), stylomastoid artery, occipital and auricular; anastomoses: anterior tympanic artery (via the stylomastoid artery) and occipital artery. Synonym: arteria auricularis posterior. (05 Mar 2000) |
| posterior auricular groove | The sulcus between the antitragus and cauda helicis overlying the antitragicohelicine fissure. Synonym: sulcus auriculae posterior. (05 Mar 2000) |
| posterior auricular muscle | <anatomy, muscle> Origin, mastoid process; insertion, posterior portion of root of auricle; action, draws back the pinna; nerve supply, facial. Synonym: musculus auricularis posterior, musculus retrahens aurem, musculus retrahens auriculam. (05 Mar 2000) |
| posterior auricular nerve | <anatomy, nerve> The first extracranial branch of the facial nerve, it passes behind the ear, supplying the posterior auricular muscle and intrinsic muscles of the auricle and, through its occipital branch, innervating the occipital belly of the occipitofrontalis muscle. Synonym: nervus auricularis posterior. (05 Mar 2000) |
| posterior auricular plexus | An autonomic plexus on the artery of this name, derived from the external carotid plexus. Synonym: plexus auricularis posterior. (05 Mar 2000) |
| posterior auricular vein | <anatomy, vein> Drains the region posterior to the ear then merges with the retromandibular vein to form the external jugular vein. Synonym: vena auricularis posterior. (05 Mar 2000) |
| posterior axillary fold | Bounds axilla posteriorly; formed by skin and fascia overlying latissimus dorsi and teres major muscles and tendons of insertion. (05 Mar 2000) |
| posterior axillary line | A vertical line extending inferiorly from the posterior axillary fold. Synonym: linea axillaris posterior, linea postaxillaris, postaxillary line. (05 Mar 2000) |
| posterior basal branch | Posterior basal branch of the basal part of the inferior lobar branch of the left and right pulmonary arteries. Synonym: ramus basalis posterior. (05 Mar 2000) |
| posterior basal segment | Posterior basal segment of inferior lobe of right and left lungs; lies adjacent to vertebral column below superior segment. Synonym: segmentum basale posterius. (05 Mar 2000) |
| posterior belly of digastric muscle | <anatomy> Portion of digastric muscle posterior to the intermediate tendon, attaching to the digastric groove of the temporal bone. Synonym: venter posterior musculi digastrici. (05 Mar 2000) |
| posterior border of eyelids | The posterior edge of the free margin of each eyelid, which is also the border of the conjunctiva. (05 Mar 2000) |
| positive cooperativity |
cooperativity in which the dissociation constant for each successive ligand bound is lower than for the one preceding it, so that the binding affinity is successively increased.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| positive meniscus |
a concavoconvex lens.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| positive-sense RNA |
viral RNA that has the same base sequence as mRNA; during replication, it functions as mRNA and serves as a template for protein synthesis.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| post-traumatic amnesia |
amnesia resulting from concussion or other head trauma. Called also traumatic a. See amnestic syndrome, under syndrome.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| post-traumatic osteoporosis |
loss of bone substance following an injury in which there is damage to a nerve, sometimes due to an increased blood supply caused by the neurogenic insult, or to disuse secondary to pain. It is one component of reflex sympathetic dystrophy. Called also Sudeck's atrophy.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| POS | with a possibility of becoming actual |
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| POS | nocturnal arboreal marsupial having a naked prehensile tail found from southern North America to northern South America |
| POS | small furry Australian arboreal marsupials having long usually prehensile tails |
| POS | deciduous shrub of southeastern and central United States |
| POS | relatively tall deciduous water oak of southeastern United States often cultivated as a shade tree |
| POS | medium-sized tree of dry woodlands in the southern and eastern United States bearing yellow or orange very astringent fruit that is edible when fully ripe |
| POS | the delivery and collection of letters and packages |
| POS | a job in an organization |
| POS | military installation at which a body of troops is stationed |
| POS | an upright consisting of a piece of timber or metal fixed firmly in an upright position |
| POS | the system whereby messages are transmitted via the post office |
| POS | a pole or stake set up to mark something (as the start or end of a race track) |