A single, unpaired primary lymphoid organ situated in the MEDIASTINUM, extending superiorly into the neck to the lower edge of the THYROID GLAND and inferiorly to the fourth costal cartilage. It is necessary for normal development of immunologic function early in life. By puberty, it begins to involute and much of the tissue is replaced by fat
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Thymus -- Growth : Thymic development and selection of T Lymphocytes / Thomas Boehm, Yousuke Takahama, editors
2014
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Thymus -- Histology. : The effects of castration and synthetic sex steroids on the thymus and lymphocytes of Sprague-Dawley rats / Kelly Fiona Windmill
A disorder of neuromuscular transmission characterized by weakness of cranial and skeletal muscles. Autoantibodies directed against acetylcholine receptors damage the motor endplate portion of the NEUROMUSCULAR JUNCTION, impairing the transmission of impulses to skeletal muscles. Clinical manifestations may include diplopia, ptosis, and weakness of facial, bulbar, respiratory, and proximal limb muscles. The disease may remain limited to the ocular muscles. THYMOMA is commonly associated with this condition. (Adams et al., Principles of Neurology, 6th ed, p1459)
Thynne, Joan, 1558-1612 -- Correspondence : Women's epistolary utterance : a study of the letters of Joan and Maria Thynne, 1575-1611 / Graham T. Williams, University of Sheffield
A highly vascularized endocrine gland consisting of two lobes joined by a thin band of tissue with one lobe on each side of the TRACHEA. It secretes THYROID HORMONES from the follicular cells and CALCITONIN from the parafollicular cells thereby regulating METABOLISM and CALCIUM level in blood, respectively
