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单词 funiculus
释义

funiculus

/fjʊˈnɪkjʊləs /
noun (plural funiculi /fjʊˈnɪkjʊlʌɪ/ /fəˈnɪkjʊlʌɪ/ /fjʊˈnɪkjʊliː/ /fəˈnɪkjʊliː/) Anatomy
1A bundle of nerve fibres enclosed in a sheath of connective tissue, or forming one of the main tracts of white matter in the spinal cord.In the uppermost portion of this photograph, the pia mater has been removed to display the tracts of the posterior funiculi (gracilis and cuneatus)....
  • The ventral gray horn is separated from the surface of the spinal cord by the lateral portion of the anterior funiculus.
  • The fully penetrant malformation involved a dorsolateral extension of cells in the dorsal horns into the region normally occupied by the overlying nerve tracts and ectopic cells scattered throughout the dorsal funiculus.
1.1 another term for funicle.Each growing ovule is seen attached to the pod wall via a funiculus, and the ovule has initiated a curved and bent orientation....
  • Pollen tubes then exit the site of intercellular growth at the base of the funiculus where they continue to grow within the ovary locule along the adaxial carpel surface to finally enter the ovule micropyle.
  • These nutrients enter the seed through a single vascular bundle in the funiculus that extends into the seed coat as the chalazal vein and its two lateral branches.

Origin

Mid 17th century: from Latin, diminutive of funis 'rope'.

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更新时间:2024/9/21 16:44:40