The Principles of Histology, Descriptive And Practical: book I. Descriptive Histology
The book The Principles of Histology, Descriptive And Practical: book I. Descriptive Histology was written by author Tuttle, Albert H. (Albert Henry), B. 1844 Here you can read free online of The Principles of Histology, Descriptive And Practical: book I. Descriptive Histology book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Principles of Histology, Descriptive And Practical: book I. Descriptive Histology a good or bad book?
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The trabec- ulae are continuous with the retiform tissue of the cortex and medulla alike, but there is no distinct raedullar\' frame- \vork of fibrous tissue and no segregation of the adenoid tissue in medullary cords: nor are there any lymph chan- nels in either cortex or medulla. The most characteristic feature^ of the thymus is the - — CJUa^iU^' f 278 -- PART II. HISTOLOGICAL ANATOMY. presence in the medulla of what are known as Hassall's corpuscles, or, as that histologist termed them, conc...en- tric corpuscles. These are peculiar nest-like groups of epi- thelioid cells which are now" known to be derived from the breaking up of right and left tubular diverticula from the cervical hypoblast. Each corpuscle consists of a central granular mass containing one or more spheroidal cells, surrounded by two or three layers of concentric flattened cells : compound corpuscles sometimes occur, two or three ordinary corpuscles being invested by a common layer of concentric cells. The adenoid tissue of the organ contains a rich capillary network, and is the place of origin of nu- merous large lymphatics.
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