| INF | infant, infantile; infection, infective, infected; inferior; infirmary; infundibulum; infusion; inte... |
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| inf | infant, infantile; inferior |
| INV | inferior nasal vein |
| IR | drop of voltage across a resistor produced by a current; ileal resection; immune response; immunizat... |
| IRV | inferior radicular vein; inspiratory reserve volume; inverse ratio ventilation |
| lateral decubitus radiograph | A radiograph of a recumbent subject on his side, made in the frontal projection with a horizontal X-ray beam. Synonym: lateral decubitus radiograph. (05 Mar 2000) |
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| lateral deep cervical lymph nodes | The lymph nodes located in the posterior triangle of the neck beneath the deep cervical fascia; they empty into the jugular trunk on the right or left side; the group is subdivided into four smaller chains: anterior jugular lymph nodes, lateral jugular lymph nodes, accessory nerve lymph nodes, and supraclavicular lymph nodes. Synonym: nodi lymphatici cervicales laterales profundi. (05 Mar 2000) |
| lateral diffusion | Diffusion in two dimensions, usually referring to movement in the plane of the membrane, such as the motion of fluorescently labelled lipids or proteins measured by the technique of fluorescent recovery after photobleaching (FRAP). (18 Nov 1997) |
| lateral direct veins | One or more veins running a subependymal course in a coronal plane over the thalamus, terminating in the internal cerebral vein. Synonym: lateral direct veins, surface thalamic veins. (05 Mar 2000) |
| lateral dorsal cutaneous nerve | <anatomy, nerve> The continuation of the sural nerve in the foot, supplying the lateral margin and dorsum. Synonym: nervus cutaneus dorsalis lateralis, dorsal lateral cutaneous nerve. (05 Mar 2000) |
| lateral epicondylar crest | The distal sharp portion of the lateral margin of the humerus. Synonym: crista supracondylaris lateralis, lateral epicondylar crest, lateral epicondylar ridge, lateral supracondylar crest. (05 Mar 2000) |
| lateral epicondylar ridge | The distal sharp portion of the lateral margin of the humerus. Synonym: crista supracondylaris lateralis, lateral epicondylar crest, lateral epicondylar ridge, lateral supracondylar crest. (05 Mar 2000) |
| lateral epicondyle | A bony prominence of the outer aspect of the humerus. The lateral epicondyle provides origin for the muscles which dorsiflex the wrist. Inflammation at this site is known as tennis elbow. (27 Sep 1997) |
| lateral epicondyle of femur | The epicondylus located proximal to the lateral condyle. Synonym: epicondylus lateralis ossis femoris, lateral femoral tuberosity. (05 Mar 2000) |
| lateral epicondyle of humerus | The epicondylus situated at the lateral side of the distal end of the bone. Synonym: epicondylus lateralis humeri. (05 Mar 2000) |
| lateral epicondylitis | <pathology> Inflammation at the lateral epicondyle (bony process off the humerus) of the elbow and the tendons that insert there. It has earned the name tennis elbow because of the common occurrence of this condition in tennis players (constant dorsiflexion of the wrist). See: medial epicondylitis. (27 Sep 1997) |
| lateral excursion | Movement of the mandible to the right or left side. (05 Mar 2000) |
| lateral femoral circumflex artery | <anatomy, artery> Origin, profunda femoris; distribution, hip joint, thigh muscles; anastomoses, medial circumflex femoral, inferior gluteal, superior gluteal. Synonym: arteria circumflexa femoris lateralis, lateral circumflex artery of thigh, lateral femoral circumflex artery. (05 Mar 2000) |
| lateral femoral cutaneous nerve | <anatomy, nerve> Arises from the second and third lumbar nerves, supplies the skin of the anterolateral and lateral surfaces of the thigh. Synonym: nervus cutaneus femoris lateralis, lateral cutaneous nerve of thigh. (05 Mar 2000) |
| lateral femoral tuberosity | The epicondylus located proximal to the lateral condyle. Synonym: epicondylus lateralis ossis femoris, lateral femoral tuberosity. (05 Mar 2000) |