| 单词 | theca |
| 例句 | It occurs when the granulosa and theca cells of the tertiary follicles begin to produce increased amounts of estrogen. Anatomy and Physiology 2013-06-19T00:00:00Z Graptolites, whose name means written in rock, were tiny animals that lived in colonies of little cuplike structures known as theca. Nuclear Blasts May Prove Best Marker of Humanity's Geologic Record [In Photos] 2015-02-10T05:00:00Z Thus while the mouth of the sicula is directed downwards, that of the first serial theca is pointed upwards, making a theoretical angle of about 180� with the direction of that of the sicula. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z The pear-shaped body is encased in a theca formed by a number of polygonal plates, and is attached by its narrow end. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z Corals have been divided into Aporosa and Perforata, according as the theca and septa are compact and solid, or are perforated by pores containing canals lined by endoderm. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" Supporting granulosa and theca cells in the growing follicles produce estrogens, until the level of estrogen in the bloodstream is high enough that it triggers negative feedback at the hypothalamus and pituitary. Anatomy and Physiology 2013-06-19T00:00:00Z The theca is greatly distended over a variable extent of the cord; the cerebro-spinal fluid is increased in quantity and is under considerable tension; and the cord itself presents a shrunken appearance. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. There is a tendency for the branches to become reduced in number, and for the serial thecae to become directed more and more upwards towards the line of the nema. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z The crinoid type was differentiated by the extension of the food-grooves and associated organs along radial outgrowths from the theca itself. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z Various attempts have been made to classify corals according to the arrangement of the septa, the characters of the theca, the microscopic structure of the corallum, and the anatomy of the soft parts. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" This is the rachis—and down here below this, is the rhizoma; and the little seed places that come on the back of the frond, are thecae. The Old Helmet, Volume I Treatment.—The treatment recommended by Horsley consists in performing laminectomy, opening the theca, and washing it out with 1 in 1000 mercurial lotion. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. From this first theca originates a second, opening in the same direction, and from the second a third, and soon, in a continuous linear series until the polypary is complete. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z An aborally-placed motor nerve-centre gives off branches to the stroma connecting the various plates of the theca and of its brachial, anal and columnar extensions, and thus co-ordinates the movements of the whole skeleton. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z The medulla oblongata not growing so hard as the spinalis, was doubtless owing to its not being confined in an osseous theca, but surrounded with soft parts, which allowed it room to spread. An Essay on the Shaking Palsy Inflammation of bursae and thecae may be classified on a chronological basis with propriety because the duration of such affections, in many cases, materially modifies the result. Lameness of the Horse Veterinary Practitioners' Series, No. 1 When the theca of the cord is directly infected the spinal symptoms predominate at first, but as the condition progresses it involves the cerebral membranes, and symptoms of acute general lepto-meningitis ensue. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. Internally, there existed a third set of thecae, held to have been inhabited by the budding individuals. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z Before the latter plates arose, the stem had developed by the elongation and constriction of the fixed end of the theca, the gradual regularization of the plates involved, and their coalescence into rings. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z But of what nature that morbid change is; and whether originating in the medulla itself, in its membranes, or in the containing theca, is, at present, the subject of doubt and conjecture. An Essay on the Shaking Palsy A chronic inflammatory involvement of a theca through which an important tendon plays may cause adhesions to form. Lameness of the Horse Veterinary Practitioners' Series, No. 1 Horizontal plates or floors found in some Corals, extending across the cavity of the "theca" from side to side. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science From this bud is developed the first zooid and first serial theca of the colony. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z Buds from the theca interna invade the follicle and form the connective tissue of the corpus luteum. Hormones and Heredity That there are many kinds of elect, and of repenting sinners: and how all of theca shall receive a reward proportionable to the measure of their repentance and good works. The suppressed Gospels and Epistles of the original New Testament of Jesus the Christ, Volume 9, Hermas In a general way, inflammation and other affections of bursae and thecae are considered very similar to like affections of joints. Lameness of the Horse Veterinary Practitioners' Series, No. 1 Etiology and Occurrence.—The thecae and bursae of the leg are several in number. Lameness of the Horse Veterinary Practitioners' Series, No. 1 This theca grows in the direction of the apex of the sicula, to which it adheres by its dorsal wall. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z In the wall of the follicle two layers are distinguished, the theca externa, which is more fibrous, and the theca interna, which is more cellular. Hormones and Heredity In addition to aspirating synovia, the introduction of equal parts of alcohol and tincture of iodin into the theca is necessary. Lameness of the Horse Veterinary Practitioners' Series, No. 1 No difficulty is encountered in recognizing these conditions even where considerable organization of tissue overlying distended thecae occurs. Lameness of the Horse Veterinary Practitioners' Series, No. 1 In the carpal region, the flexors of the phalanges are contained together in the carpal sheath, and this is the principal theca in the carpal region. Lameness of the Horse Veterinary Practitioners' Series, No. 1 However, in general practice a classification on an etiological basis is probably more practical and we shall consider inflammation of bursae and thecae as infectious and noninfectious. Lameness of the Horse Veterinary Practitioners' Series, No. 1 Numbers of ova die without reaching maturity, the follicular cells degenerate, and the follicle becomes filled with the cells of the theca interna, which have a resemblance to those of the true corpus luteum. Hormones and Heredity The noninfectious inflammation of bursae and thecae usually result from contusions or strains and generally run their course without becoming infective in character, where vitality and resistance of the subject are normal. Lameness of the Horse Veterinary Practitioners' Series, No. 1 The average horse that has been subjected to hard service on pavements or hard roads at fast work suffers synovial distension of bursae, thecae or of joint capsules. Lameness of the Horse Veterinary Practitioners' Series, No. 1 |
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