英：[ˌkɒljʊ'melə]
美：[ˌkɒljʊ'melə]
columella如何读
columella是什么意思
- n.小柱；螺的轴柱；壳轴
columella变形
复数:columellae
columella英英释义
noun
the central column or axis of a spiral univalve shell
the bony or partly cartilaginous rod connecting the tympanic membrane with the internal ear in birds and in many reptiles and amphibians
the bony central axis of the cochlea
columella_动物学行业词汇
轴柱
耳柱骨
columella_医学行业词汇
［拉］ 〔复columellae〕小柱：各种柱状解剖结构的任何一种
在某些真菌和原虫中指插入孢子囊繁殖区的孢子囊柄的非繁殖部分。又称columellae
columella_植物学行业词汇
囊轴
[腹菌]中轴
蒴轴
小柱
columella_生物学行业词汇
中轴
囊轴
columella词源英文解释
New Latin, from Latin, diminutive of columna
The first known use of columella was circa 1755
columella医学词典英英释义
columellanoun
any of various anatomical parts likened to a column:
the bony central axis of the cochlea
the lower part of the nasal septum
the central sterile portion of the sporangium in various fungi (Mucor and related genera)
columella 例句
1 The archesporium arises by the next divisions in the outer layer of cells, and thus extends over the summit of the columella.
2 Stipe and columella smooth and black, tapering gradually upward and disappearing near the apex of the sporangium, the stipe shorter than the columella.
3 Capillitium rather scanty, of slender colorless threads, sparingly branched, ascending from the columella.
4 The distance between bilateral nasal vestibular fornix longer than the distance between bilateral nostrils, so that nasal columella and nasal septum was keyhole-shaped;
两侧鼻前庭穹窿间距较两侧鼻孔最内侧点间距小，使鼻小柱及鼻中隔呈锁孔状；
5 It is the cartilagenous part of the columella that connects with the external sound detecting mechanism.
6 The columella extending beyond the center of the sporangium.
7 A fine, solid, brown species, generally more or less eroded, and with a peculiarly strongly plicate columella.
8 Shell ovoid, with short spire, wide aperture and folded columella; inferior pallial lobe thick; visceral commissure still twisted.
9 The Anthocerotales are a small and very distinct group, in which the gametophyte is a thallus, while the sporogonium possesses a sterile columella and is capable of long-continued growth and spore production.
10 A rod-like columella auris replaces the chain of ear ossicles, and may, or may not, answer to the stapes alone, or even possibly to the entire series.
11 The delicate, spindle-shaped columellae lie ventral to the tegmen tympani and squamosals, are spatulate distally, and have a broad basal attachment to the auditory region.
12 The columella is formed from the middle piece of the three into which the cartilage of the second arch segments.
13 The development of the sporogonium proceeds as in the Bryales, but the dome-shaped archesporium extends over the summit of the columella and an air-space is wanting.
14 This wall pushes up into the young sporangium, forming a structure called the “columella.”
15 When fully grown, the sporangium is globular, and appears quite opaque, owing to the numerous granules in the protoplasm filling the space between the columella and its outer wall.
16 Stipe and columella smooth and black, tapering upward and reaching the apex of the sporangium, the columella bent and flexuous or spirally twisted, about as long as the stipe.
17 Occupying the axis, and exposed by the section, is seen the “columella” or spiral pillar.
18 Shell fusiform and solid, aperture elongated, columella folded; no operculum; eyes on sides of tentacles.
19 Stipe present or often wanting, never prolonged within the sporangium as a columella.
20 Additionally, lymphatic drainage does not occur in the columella region.
另外，鼻小柱部位无淋巴回流。