| 释义 |
Definition of filopodium in English: filopodiumnounPlural filopodia ˌfʌɪlə(ʊ)ˈpəʊdɪəmˌfī- Biology A long, slender, tapering pseudopodium, as found in some protozoans and in embryonic cells. Example sentencesExamples - If a skill is used again and again, the link hardens; if it's used only once, the filopodia soon shrink back, triggering a change in the brain cell, a thinning of the grip that may explain forgetting.
- These filopodia push into adjacent cells and are ingested by them.
- In some cells, filopodia are essential for navigation: when filopodia are suppressed, the nerve growth cones can advance but cannot navigate.
- A few hours after it detached, the cell regenerated its filopodia and once again adhered to the matrix.
- Simultaneously, the actin bundles within filopodia disappear, followed by retraction of these surface extensions.
Derivatives adjective Biology Then, we find the connection between the spacing between adjacent filopodia and the rates of the filopodial initiation and lateral drift. Example sentencesExamples - However, filopodial protrusions would be more efficient for crawling through extracellular matrix and on surfaces of other cells.
- Also, some observations indicate that the rate of filopodial elongation does not slow down with filopodial length as fast as predicted by our theory.
- When growth cones encounter guidance cues or asymmetric environments, signaling changes may also affect filopodial motility and distribution or microtubule engorgement to guide subsequent growth cone motility.
- Other cells from the same population spread in a slower, anisotropic mode, exhibiting filopodial protrusions, greater membrane ruffling, edge retraction, and centripetal flow of actin filaments.
Origin Early 20th century: from Latin filium 'thread' + podium. Definition of filopodium in US English: filopodiumnounˌfī- Biology A long, slender, tapering pseudopodium, as found in some protozoans and in embryonic cells. Example sentencesExamples - Simultaneously, the actin bundles within filopodia disappear, followed by retraction of these surface extensions.
- A few hours after it detached, the cell regenerated its filopodia and once again adhered to the matrix.
- These filopodia push into adjacent cells and are ingested by them.
- If a skill is used again and again, the link hardens; if it's used only once, the filopodia soon shrink back, triggering a change in the brain cell, a thinning of the grip that may explain forgetting.
- In some cells, filopodia are essential for navigation: when filopodia are suppressed, the nerve growth cones can advance but cannot navigate.
Origin Early 20th century: from Latin filium ‘thread’ + podium. |