| 词汇 | example_english_sucker |
| 释义 | Examples of suckerThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. The procercoid possesses a well-developed anterior part (scolex) with four muscular suckers. Certainly any decrease in size of the ventral sucker is minor. The cirrus pouch is small and stout, lying immediately and entirely in front of the ventral sucker. Muscle fibres from the somatic muscle layers and the ventral sucker have been isolated and images obtained with phase-contrast microscopy and scanning electron microscopy. Isolated muscle fibres from the ventral sucker may represent a more homogeneous population of muscle fibres than fibres isolated from a whole fluke digest. The physical size of the sucker results in a broadening of the worm at this point and is generally the widest aspect of the worm. Hypothetically, glandular secretions are involved in tissue degradation (disintegration of the papilla and attached sucker following pairing) and fusion of the adjacent tegument. It is probably not a result of atrophy of the sucker; the suckers of immatures and adults show no signs of degradation. Partially digested ventral suckers of adult flukes were prepared as described previously, then fixed and processed for phalloidin staining. The eggs were scattered around the ovary and along the left side of the ventral sucker. These are seen on the oral and ventral suckers and lateral, ventral and dorsal body surfaces. The oral sucker is subterminal and measures about 0"16 mm. in diameter. The excretory vesicle is placed at the posterior end slightly in front, and at the side of, the large sucker. Once both ventral suckers are attached to their respective papillae, lysis and fusion of the adjoining tissues begin. On the scolex, there were four suckers and two rows of hooklets. Through the active linkage board of the leaning mechanism the sucker is installed on the cylinder. Kadially organized fibres also occur, particularly in the region of the ventral sucker. Through a twisting of the two bodies, the free sucker of one individual embraces the free papilla of its mate. The tegument of the neck region between the suckers is devoid of tubercles and spines and has a series of circumferentially orientated ridges. The cirrus-pouch is a conspicuous arcuate structure lying immediately in front of the ventral sucker. The uterus lies almost entirely behind the ventral sucker, although one convolution is thrown up along the right side of the sucker. Exposure to bleached kraft pulp-mill effluent disrupts the pituitary-gonadal axis of white sucker at multiple sites. The cirrus-pouch is of simple type and is situated over and in front of the right anterior quadrant of the ventral sucker. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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