Two stages in the constriction of apical surfaces (blue) of a pair of cells in C. elegans.
In morphogenesis, apical constriction is the process in which contraction of the apical side of a cell causes the cell to take on a wedged shape. Generally, this shape change is coordinated across many cells of an epithelial layer, generating forces that can bend or fold the cell sheet.[1]
^Lee, J.; Harland, R. M. (2007). "Actomyosin contractility and microtubules drive apical constriction in Xenopus bottle cells". Developmental Biology. 311 (1): 40–52. doi:10.1016/j.ydbio.2007.08.010. PMC 2744900. PMID 17868669.
and 27 Related for: Apical constriction information
cells constrict on the apical side, the epithelial sheet bends convexly on the basal side. In vertebrates, apicalconstriction plays a role in a range...
during apicoectomy to eliminate the apical delta and maximise the chance of successful healing. An apicalconstriction is often present. In immature teeth...
electronic device used in endodontics to determine the position of the apicalconstriction and thus determine the length of the root canal space. The apex of...
height and shape of the cell to change. This process is known as apicalconstriction. The result is a flattening of the differentiating neural plate which...
front of the ape skull is characterised by its sinuses, fusion of the frontal bone, and by post-orbital constriction. Cladistically, apes, catarrhines...
digestive tract and circulatory system). These cells have an apical-basal polarity defined by the apical membrane facing the outside surface of the body, or the...
roots may appear to be darker or radiolucent/pointy and short with apicalconstriction. Dentine is laid down abnormally and causes excessive growth within...
the apical vowel, which occurs exclusively following the alveolar fricative [s] or affricates [ts] and [tsʰ]. It is produced by maintaining the apical constriction...
or makes a constriction, and include dental, alveolar, and post-alveolar locations. Tongue postures using the tip of the tongue can be apical if using the...
constriction just behind the orbital region stout facial bones a diastema a simian shelf a larger, well pronounced brow ridge The following great ape...
that this was a diurnal species. This species showed some postorbital constriction. The interorbital distance of Aegyptopithecus zeuxis is large much like...
Biofilling, the watertight apical plug is formed at the apicalconstriction of the apical foramen. Triple MTA sealing (apical, middle & coronal) is achieved...
or makes a constriction, and include dental, alveolar, and post-alveolar locations. Tongue postures using the tip of the tongue can be apical if using the...
vocal tract where its production occurs.: 10 It is a point where a constriction is made between an active and a passive articulator. Active articulators...
and unglottalized, which means it is produced without vibration or constriction of the vocal cords, and any following vowel starts without significant...
respectively apical and laminal. Its phonation is voiceless, unaspirated, and unglottalized, which means it is produced without vibration or constriction of the...
constricted region of the chromosome (often referred to as the primary constriction) where two identical sister chromatids are most closely in contact. When...
[+/− consonantal] Consonantal segments are produced with an audible constriction in the vocal tract, such as obstruents, nasals, liquids, and trills....
adjoining cells at the flat, apical face of the cells. The cells can be longer or shorter than wide. A median constriction of the cells may appear either...
long achenes with the apical section separated from the basal portion by a deep constriction. Seeds are oval with a constriction across the upper half...
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