Results 231 to 240 of about 1,535,995 (274)
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Pectoralis major muscle defect and Poland complex
American Journal of Medical Genetics, 1979AbstractPectoralis major muscle defect (PMD) was diagnosed in 27 infants from a series of 599, 109 live births in South America (1/22,189). In all 27 cases the PMD was unilateral, mainly affecting the right side (20/27), and there were more male (19/27) than female cases. No familial cases and no parental consanguinity were recorded.
E E, Castilla, J E, Paz, I M, Orioli
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Pectoralis Major and Minor Muscles
2015The pectoralis major muscle is a powerful adductor of the arm, and also assists in internal rotation and flexion at the shoulder joint. It consists of sternocostal and clavicular heads, which converge on the upper humerus lateral to the bicipital groove.
Alberto de Castro Pochini +7 more
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Unusual attachment of the pectoralis minor muscle
Clinical Anatomy, 2005The authors report a presumably unusual bony attachment of the pectoralis minor muscle in an adult cadaver. The specimen's left pectoralis minor had no attachment to the coracoid process of the scapula but attached directly to the fibrous capsule of the glenohumeral joint.
R Shane, Tubbs +2 more
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The composite structure of quail pectoralis muscle
Journal of Morphology, 1992AbstractThe twitch fibers of the quail pectoralis muscle were found to have one neuromuscular junction each, located in the middle third of the fiber. The length of isolated fibers varied between 8.8 and 33.2 mm, with mean and median values of 16 and 15.6 mm, respectively.
J A, Trotter +3 more
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Injuries to the Pectoralis Major Muscle
The American Journal of Sports Medicine, 2010Injuries to the pectoralis major muscle are relatively infrequent but result in pain, weakness, and deformity of the upper extremity. The usual injury mechanism is during eccentric shortening of the pectoralis major under heavy load, such as when performing a bench press exercise. The ability to detect and treat a pectoralis major rupture is important
Matthew T, Provencher +5 more
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Rupture of the Pectoralis Major Muscle
The Physician and Sportsmedicine, 1997Correct diagnosis of complete or partial ruptures of the pectoralis major muscle complex is important because of the muscle's vital role in shoulder function. Three case reports are used here to support a discussion of diagnosis and treatment. The diagnosis can usually be made with a history and physical exam, but magnetic resonance imaging can help ...
G P, Griffiths, F H, Selesnick
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Regeneration of specific innervation inXenopus pectoralis muscle
Journal of Neurobiology, 1996We investigated the motor unit organization and precision of reinnervation in the Xenopus pectoralis muscle following different manipulations, including crush or section of the posterior pectoralis nerve, foreign nerve innervation, and crush coupled with activity modulation or block.
Y, Harada, A D, Grinnell
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Closed Injuries of the Pectoralis Major Muscle
The Journal of Trauma: Injury, Infection, and Critical Care, 1980Direct and indirect trauma can cause injury to various portions of the pectoralis major muscle in varying degrees. Sprains and partial tears of the pectoralis major muscle are not uncommon. Surgical repair in acute injuries can often produce excellent results in selected patients.
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Retromammary Tumours of the Pectoralis Major Muscle
Australian and New Zealand Journal of Surgery, 1973Attention is drawn to the occurrence of a variety of tumours in the pectoralis major muscle or its deep fascial sheath. When these tumours lie deep to the female breast, difficulties in diagnosis and management occur. Their incidence in a large personal series is given, and the incidence in the case histories of the Soft Tissue Registry is also quoted.
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