| rad | radiation absorbed dose; radial; radian; radical; radius; root [Lat. radix] |
|---|---|
| RCM | radial contour model; radiographic contrast medium; red cell mass; reinforced clostridial medium; re... |
| RD | radial deviation; radiology department; rate difference; Raynaud disease; reaction of degeneration; ... |
| REAR | renal, ear, anal, and radial [malformation syndrome] |
| RF | radial fiber; radio frequency; receptive field; regurgitant fraction; Reitland-Franklin [unit]; rela... |
| superficial branch of the medial plantar artery | <anatomy, artery> Gives rise to superficial digital arteries of medial three toes. Synonym: ramus superficialis arteriae plantaris medialis. (05 Mar 2000) |
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| superficial branch of the superior gluteal artery | <anatomy, artery> To upper gluteus maximus muscle. Synonym: ramus superficialis arteriae gluteae superioris. (05 Mar 2000) |
| superficial branch of the transverse cervical artery | <anatomy, artery> Branch of transverse cervical artery which accompanies the spinal accessory nerve on the deep surface of the trapezius muscle. Alternatively arises as a direct branch of the thyrocervical trunk, in which case it is called the superficial cervical artery. (05 Mar 2000) |
| superficial burn | A burn involving only the epidermis and causing erythema and oedema without vesiculation. Synonym: superficial burn. (05 Mar 2000) |
| superficial cardiac plexus | The superficial and smaller subdivision of the cardiac plexus, formed by the left superior cardiac nerves from the left vagus and cervical sympathetic trunk; it is found beneath the aortic arch, between the arch and the bifurcation of the pulmonary trunk. Synonym: plexus cardiacus superficialis. (05 Mar 2000) |
| superficial cerebral veins | The veins on the superficial surface of the cerebral hemispheres; they comprise three groups: superior, middle, and inferior. Synonym: venae cerebri superficiales. (05 Mar 2000) |
| superficial cervical artery | <anatomy, artery> Origin, branch of thyrocervical trunk, running with spinal accessory nerve deep to trapezius muscle. See: superficial branch of the transverse cervical artery. Synonym: arteria cervicalis superficialis. (05 Mar 2000) |
| superficial circumflex iliac artery | <anatomy, artery> Origin, femoral; distribution, inguinal lymph nodes and integument of that region; sartorius, and tensor fasciae latae muscles; anastomoses, deep circumflex iliac. Synonym: arteria circumflexa iliaca superficialis. (05 Mar 2000) |
| superficial circumflex iliac vein | <anatomy, vein> Corresponding to the artery of the same name, emptying usually into the great saphenous vein, or sometimes into the femoral vein. Synonym: vena circumflexa iliaca superficialis. (05 Mar 2000) |
| superficial cleavage | Meroblastic cleavage with the divisions limited to the peripheral (surface) cytoplasm of a centrolecithal egg. (05 Mar 2000) |
| superficial dorsal sacrococcygeal ligament | <anatomy> The continuation of the supraspinal ligament from the sacrum to the coccyx. Synonym: ligamentum sacrococcygeum posterius superficiale, superficial posterior sacrococcygeal ligament. (05 Mar 2000) |
| superficial dorsal veins of clitoris | A pair of veins on the dorsum of the clitoris, tributary to the external pudendal vein on either side. Synonym: venae dorsales clitoridis superficiales. (05 Mar 2000) |
| superficial dorsal veins of penis | A pair of veins on the dorsum of the penis superficial to the fascia penis; they are tributaries of the external pudendal veins on each side. Synonym: venae dorsales penis superficiales. (05 Mar 2000) |
| superficial ectoderm | That part of the ectoderm separating from the neuroectoderm at about the fourth week of embryonic life; the epidermis and its specialised derivatives develop from it. Synonym: superficial ectoderm. (05 Mar 2000) |
| superficial epigastric artery | <anatomy, artery> Origin, femoral; distribution, inguinal nodes and integument of lower abdomen; anastomoses, inferior epigastric, superficial circumflex iliac and external pudendal. Synonym: arteria epigastrica superficialis. (05 Mar 2000) |