. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 170 NORMAL ANATOMY OF THE LIVER. the frog ending in twig-like terminations. Kiernan inclines to the opinion that they termi- nate in loops, although he says nothing which could lead us to suppose that he rejects the possibility of their terminations being ccecal. Both authors agree that they end by closed extremities. It is this plexus which constitutes the true glandular portion of the liver. Miiller, in reference to the terminations of the ducts in anastomosing plexuses, states, that the history of the development of t
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 170 NORMAL ANATOMY OF THE LIVER. the frog ending in twig-like terminations. Kiernan inclines to the opinion that they termi- nate in loops, although he says nothing which could lead us to suppose that he rejects the possibility of their terminations being ccecal. Both authors agree that they end by closed extremities. It is this plexus which constitutes the true glandular portion of the liver. Miiller, in reference to the terminations of the ducts in anastomosing plexuses, states, that the history of the development of the organ is opposed to the belief in the existence of anas- tomoses. Certainly, if we are to credit the principle which he himself has established for the development of glands, viz. that " however various the form of the elementary parts, all secreting glands without exception follow the same law of conformation," the same process must take place in all; and analogy would lead us to infer that a plexiform anastomosis would be the arrangement of the terminal ducts in so complicated a gland as the liver of the adult, whatsoever it may happen to be in the unde- veloped organ of the embryo. That there is nothing irrational in this opinion we would turn for proof to another page of his Physiology, where he observes, " in the scorpion, as I have discovered, the tubes (of the testis) anastomose, forming ; Again, he says, " Lauth has but once seen a seminal canal ending with a free extremity in the human testis. Krause has seen such free ends of the tubuli seminiferi frequently, and confirms the opinion of their terminating in that way as well as by anasto- mosis. Lauth attributes the circumstance of free extremities of the tubes being so seldom seen to their uniting with each other so as to form loops. He describes the division and reunion of the tubes to be so frequent that in a small portion which he spread out, and in which there were about forty-ni
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