9.1 Highlight the various articulations that exist in the oral cavity
Analysis of articulations in the oral cavity
1. Labial articulations
The two lips are involved e.g. /p, b/
The lower lip and the upper teeth are involved e.g. / f, v/
2. Dent-alveolar articulations
/ð, θ/ articulated by the tip or the blade of the tongue against the back of the upper front teeth.
The tip/ blade of the tongue against the alveolar ridge. E.g. /t, d/
Tip/ apex – apico
Blade – lamino
e.g. / ∫, z/
3. Retroflex and palatal articulations
Retroflex sounds are articulated with the sub-lamino, as the tongue slides back beyond the post-alveolar sub-zone.
It enters the pre-palatal zone.
It is almost pointing up
The under blade or sublamina makes contact with the palatal arch.
Since the tip/ apex of the tongue is virtually curled back the sound are called retroflex e.g. /t, d/.
The palatal sounds are articulated with the back (antero-dorso) part of the tongue in juxtaposition with the palatal sub-zone.
/ɲ/ – nyumba (house) in Kiswahili
4. Velar and uvular articulations
Articulated with the back of the tongue (postero – dorso) against the soft palate. Velar,
for example, /k, g/ and uvular, for example, /q, /
To articulate /q/ make a stricture for /k/ then let the tongue slip slightly further back and down.