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Organ |
Synonyms |
Relationships |
Definition |
Property |
Definition |
States |
Knowledge base |
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Cephalic framework |
= Anterior sclerotization = Internal sclerotization = Skeletal framework = Head framework = Sclerotized labial framework = Head region sclerotization = (Labial framework) = (Labial sclerotization) |
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A sclerified structure supporting the cephalic region. |
size |
A subjective appreciation of the overall dimensions and of the degree of development of the Cephalic framework. Size is linked to numerical dimensions but it is not itself a numerical property. |
very small = very
weak = greatly reduced = minute = (absent) small = weak = light = reduced = poorly developed intermediate = moderate large = strong = well developed = heavy = robust very large = very strong = massive = very strongly developed = very heavy |
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visibility |
How easy/difficult it is to see the Cephalic framework |
very low = very faint = very indistinct = very obscure = (inconspicuous) = cannot be seen = not seen = (absent) low = faint = indistinct = obscure = inconspicuous = not prominent = can be seen intermediate = distinct = can be seen high = conspicuous = prominent = clear = clearly visible = can be seen = (well marked) very high = very conspicuous = highly prominent = can be seen = (very well marked) |
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texture |
An appreciation of the degree of sclerification of the Cephalic framework |
not sclerotized lightly sclerotized sclerotized highly sclerotized = well sclerotized very heavily sclerotized |
If cephalic framework is called "anterior sclerotization", then texture = very heavily sclerotized or highly sclerotized (or rarely "sclerotized" only) |
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shape |
The general appearance, form, or aspect of the Cephalic framework. |
hexaradiate arch |
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Cephalic arches |
= (Labial arches) |
- {inner, outer} |
Six rigid structures arching from the basal plate upwards around the stoma to the top of the vestibule, then fall back towards the rim of the basal plate, just underneath the head cuticle. The Cephalic arches support the head region. There are four sublateral arches, one dorsal, and one ventral. |
size
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A subjective appreciation of the overall dimensions of Cephalic arches. Size is linked to numerical dimensions but it is not itself a numerical property. |
very small = very weak = greatly reduced = minute = (absent) small = weak = light = reduced = poorly developed intermediate = moderate large = strong = well developed = heavy = robust very large = very strong = massive = very strongly developed = very heavy |
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visibility |
How easy/difficult it is to see the Cephalic arches |
very low = very faint = very indistinct = very obscure = (inconspicuous) = cannot be seen = not seen = (absent) low = faint = indistinct = obscure = inconspicuous = not prominent = can be seen intermediate = distinct = can be seen high = conspicuous = prominent = clear = clearly visible = can be seen = (well marked) very high = very conspicuous = highly prominent = can be seen = (very well marked) |
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texture |
An appreciation of the degree of sclerification of the Cephalic framework |
not sclerotized lightly sclerotized sclerotized highly sclerotized = well sclerotized very heavily sclerotized |
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Inner part of cephalic arches |
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The portion of the cephalic arches that surrounds the stoma |
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Outer part of cephalic arches |
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The portion of the cephalic arches that lies just underneath the head cuticle |
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Basal plate |
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The circular base of the Cephalic framework. It is organized as a wheel with six spokes: it is composed of an annular structure, with a posteriorly directed rim, the basal ring, and six radial elements, between the annular structure and the vestibule. It also bears the six cephalic arches anteriorly and the vestibule (see digestive system) posteriorly. |
size |
A subjective appreciation of the overall dimensions of Basal plate. Size is linked to numerical dimensions but it is not itself a numerical property |
very small = very weak = greatly reduced = minute = (absent) small = weak = light = reduced = poorly developed intermediate = moderate large = strong = well developed = heavy = robust very large = very strong = massive = very strongly developed = very heavy |
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visibility |
How easy/difficult it is to see Basal plate |
very low = very faint = very indistinct = very obscure = (inconspicuous) = cannot be seen = not seen = (absent) low = faint = indistinct = obscure = inconspicuous = not prominent = can be seen intermediate = distinct = can be seen high = conspicuous = prominent = clear = clearly visible = can be seen = (well marked) very high = very conspicuous = highly prominent = can be seen = (very well marked) |
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shape
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The general appearance, form, or aspect of the Basal plate |
convex anteriorly flat |
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Radial lamina |
= Radial arms |
- {dorsal, ventral, submedian} |
The six blades that are part of the basal plate and that link it to the vestibule. |
shape |
The general appearance, form, or aspect of the Radial lamina. |
simple complex |
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Blades |
= Radial lamina blades = (Radial lamina sectors) |
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The individual blades constituting the spokes of the radial lamina. |
number |
The number of Radial lamina blades. Most tylenchs have six blades. Hexatylus has twelve. |
6 12 |
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length |
The main dimension of a Blade. |
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ratio length of Blades -{dorsal, ventral} / length of Blades - {subventral} |
The length of the dorsal and ventral blades (usually these blades are all of the same length) divided by the length of the subventral blades (sometimes shorter or longer than the dorsal and ventral blades). |
smaller = Blades - {dorsal, ventral} smaller than Blades - {subventral} equal = all Blades about the same longer = Blades - {dorsal, ventral} longer than Blades - {subventral} |
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End |
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The outer extremity of the Radial lamina, on the other side of the Basal ring, aligned with the Blades (which are on the inner side of the ring). |
shape |
The general appearance, form, or aspect of the end of the Radial lamina |
simple bifurcate
thin thickened
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Basal ring |
= Outer margins of basal plate = Basal plate extending into the body
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The annular structure that extends posteriorly from the outer margin of the basal plate of the cephalic framework. |
visibility |
How easy/difficult it is to see the Basal ring |
very low = very faint = very indistinct = very obscure = (inconspicuous) = cannot be seen = not seen = (absent) low = faint = indistinct = obscure = inconspicuous = not prominent = can be seen intermediate = distinct = can be seen high = conspicuous = prominent = clear = clearly visible = can be seen = (well marked) very high = very conspicuous = highly prominent = can be seen = (very well marked) |
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size
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A subjective appreciation of the overall dimensions and of the degree of development of the Basal ring. Size is linked to numerical dimensions but it is not itself a numerical property. |
very small = very weak = greatly reduced = minute = (absent) small = weak = light = reduced = poorly developed intermediate = moderate large = strong = well developed = heavy = robust very large = very strong = massive = very strongly developed = very heavy |
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length
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The length of the Basal ring (when seen in lateral view). May be called width in some descriptions. Measured in micrometers or in units of Body annuli. |
very short short intermediate long very long
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- length of Basal ring in units of Body annuli = xxx annuli long = stretches along xxx annuli
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