{'fraction_non_alphanumeric': 0.030792917628945343, 'fraction_numerical': 0.02771362586605081, 'mean_word_length': 4.909090909090909, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
The traffic of cells through tissues: a study of peripheral lymph in sheep.

Large numbers of lymphocytes continually leave the circulation through specialized post-capillary venules in the cortex of the lymph node and enter the efferent lymph (Gowans, 1959; Gowans & Knight, 1964; Hall & Morris, 1965). There is also a traffic of cells through other tissues of the body, so that from time to time examples of all the various cells of the circulating blood may be found outside blood vessels. The nature and extent of this traffic has been incompletely described and studies on lymph coming from tissues other than lymph nodes have been restricted to a few observations made on small volumes of lymph collected from anaesthetized animals (Haynes & Field, 1931; Yoffey & Drinker, 1939; Horii, lio & Sugimoto, 1950) and to the observations on peripheral lymph from the hind limbs of unanaesthetized sheep by Hall & Morris (1963), Hall (1967), and Morris, Moreno & Bessis (1968). This paper records the results of experiments which were done to assess the extent of the cellular traffic through different tissues of the body. Chronic fistulae were maintained in conscious sheep in lymphatics draining various tissues and the numbers and types of cells leaving these tissues in the lymph were estimated.