| MCA | major coronary artery; Maternity Center Association; medical care administration; methylcholanthrene... |
|---|---|
| MDC | major diagnostic categories; Metoprolol in Dilated Cardiomyography [trial]; minimum detectable conce... |
| MDE | major depressive episode |
| MHA | major histocompatibility antigen; May-Hegglin anomaly; Mental Health Association; methemalbumin; mic... |
| MHC | major histocompatibility complex; mental health care |
| rectus capitis posterior major | <anatomy, muscle> Origin, spinous process of axis; insertion, middle of inferior nuchal line of occipital bone; action, rotates and draws head backward; nerve supply, dorsal branch of first cervical (suboccipital). See: suboccipital muscles. Synonym: musculus rectus capitis posterior major, greater posterior rectus muscle of head, musculus rectus capitis posticus major. (05 Mar 2000) |
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| cartilago alaris major | One of a pair of cartilages that form the tip of the nose. It consists of a medial crus that extends into the nasal septum with its fellow of the opposite side, and a lateral crus that forms the anterior part of the wing of the nose. Synonym: cartilago alaris major. (05 Mar 2000) |
| glandula vestibularis major | One of two mucoid-secreting tubuloalveolar glands on either side of the lower part of the vagina, the equivalent of the bulbourethral glands in the male; ensheathed with vestibular bulbs by ischiocavernosus muscles. Thus erection and muscle contraction cause secretion into vestibule of vagina. Synonym: glandula vestibularis major, Bartholin's gland, Duverney's gland, Tiedemann's gland, vulvovaginal gland. (05 Mar 2000) |
| globus major | The upper and larger extremity of the epididymis. Synonym: caput epididymidis, caput epididymis, globus major. (05 Mar 2000) |
| pectoralis major | <anatomy, muscle> Origin, clavicular part (pars clavicularis), medial half of clavicle; sternocostal part (pars sternocostalis), anterior surface of manubrium and body of sternum and cartilages of first to sixth ribs; abdominal part (pars abdominalis), aponeurosis of external oblique; insertion, crest of greater tubercle of humerus; action, adducts and medially rotates arm; nerve supply, anterior thoracic. Synonym: musculus pectoralis major, greater pectoral muscle. (05 Mar 2000) |
| pelvis justo major | A symmetrical pelvis with greater than normal measurements in all diameters. (05 Mar 2000) |
| pelvis major | The expanded portion of the pelvis above the brim. Synonym: pelvis major, false pelvis, large pelvis, pelvis spuria. (05 Mar 2000) |
| rhomboideus major | <anatomy, muscle> Origin, spinous processes and corresponding supraspinous ligaments of first four thoracic vertebrae; insertion, medial border of scapula below spine; action, draws scapula toward vertebral column; nerve supply, dorsal of scapula nerve. Synonym: musculus rhomboideus major, greater rhomboid muscle. (05 Mar 2000) |
| pestis major | <microbiology> This rare bacterial infection due to Yersinia pestis. It can cause painful, enlarged lymph nodes, fever, headache and prostration 2-7 days after a flea bite. May also cause pneumonia and sepsis. Transmitted in rodents and humans via an infected flea bite. The incubation period is 2-10 days. Yersinia infection is now rare in Western countries. Third world countries (for example India) can have epidemics of Yersinia. Treatment with antibiotics is necessary or most individuals will die. Even with antibiotic treatment the death rate is 5%. (15 Nov 1997) |
| chorea major | A spasmodic attack occurring in patients with conversion hysteria. (05 Mar 2000) |
| Phlebotomus major | A vector of kala azar in the Mediterranean region. (05 Mar 2000) |
| circulus arteriosus iridis major | An arterial circle at the ciliary border of the iris. Synonym: circulus arteriosus iridis major. (05 Mar 2000) |
| clavicular part of pectoralis major muscle | pars clavicularis musculi pectoralis majoris, clavicular head of pectoralis major |
| musculus helicis major | <anatomy> A narrow band of muscular fibres on the anterior border of the helix of the auricle arising from the spine and inserted at the point where the helix becomes transverse. Synonym: musculus helicis major, large muscle of helix. (05 Mar 2000) |
| musculus pectoralis major | <anatomy, muscle> Origin, clavicular part (pars clavicularis), medial half of clavicle; sternocostal part (pars sternocostalis), anterior surface of manubrium and body of sternum and cartilages of first to sixth ribs; abdominal part (pars abdominalis), aponeurosis of external oblique; insertion, crest of greater tubercle of humerus; action, adducts and medially rotates arm; nerve supply, anterior thoracic. Synonym: musculus pectoralis major, greater pectoral muscle. (05 Mar 2000) |