posterior ethmoidal cells

(redirected from posterior cells)

posterior ethmoidal cells

[TA]
the posterior group of air cells of the ethmoidal sinuses; each sinus communicates with the superior meatus of the nasal cavity.
References in periodicals archive ?
Male dolichocephalic skulls: MT= 6.96 mm in superior middle cell; MT= 6.66 mm in superior posterior cell; MT= 5.23 to 5.62 mm in middle anterior, middle and posterior cells with no statistically significant difference between MT values; and MT= 5.83 mm in inferior posterior cell (Table I).
Male mesocephalic skulls: MT= 7.13 mm in superior middle cell; MT= 7.14 mm in superior posterior cell; MT= 5.02 to 5.50 mm in middle anterior, middle and posterior cells with no statistically significant difference between MT values; and MT= 5.51 mm in inferior posterior cell (Table II).
The elongated denticles coincided with comparably elongated denticles of adjacent anterior and posterior cells, such that a series of elongated denticles formed distinct, albeit tiny, lengthwise ridges (Fig.
Relatively longer denticles overlapped posterior cell denticles and were organized into distinct linear patterns.
The maxillary, ethmoid (divided into anterior and posterior cells) frontal and sphenoid sinuses.
Unfortunately, visualization of any posterior cells in trochophore stages was obscured by the large autofluorescent yolk in P.
In later blastoderm stage embryos, MAPK expression is found in just two posterior cells; it fades while, with the onset of epiboly, an outer MAPK positive ring of cells begins to form.
In the absence of a coordinating system in cellular sponges, the spatial organization and autonomous behavior of the pigmented posterior cells control the rapid responses to light shown by these larvae.
Halfway through day 2, two bilaterally symmetrical pairs of FMRFamide-LIR posterior cells were observed (Figs.
In addition to these cell types, the AG contains a few posterior cells that do not have any apical projections, and a dense neuropilar region located posterior and medial to all of these cells [ILLUSTRATION FOR FIGURE 2B OMITTED].
In these larvae, which lack p58 and do not develop functional muscle cells, low levels of [Beta]-galactosidase activity were detected in a few posterior cells (Kusakabe et al., 1996).
The widening phase is followed by narrowing to a one-cell width again due to the loss of engrailed expression in posterior cells in the stripe [ILLUSTRATION FOR FIGURES 1B, C OMITTED].

Medical browser ?
Full browser ?