After cleavage and gastrulation, a large lobe (the preoral
lobe) forms at the anterior end, and the embryo undergoes extensive morphogenetic movements to set up the vitellaria body plan.
A synchronous preoral
technique for the bioassay of insect viruses.
The earliest actively swimming trochophore appeared from 12.5 hpf and had a large preoral
lobe destined to develop into the velum (Fig.
La faringe es un tubo delgado con multiples traqueas, que se encuentra entre la cavidad preoral
y el esofago (Fig.
Mouth broad, strongly arched, upper jaw originating below middle of the eye, width 1.3 (1.1-1.2) times into preoral
cavity of lower Hymenoptera (Insecta): comparative anatomy and phylogenetic significance.
A scorpion exuvium may include the booklung lamellae, preoral
tube, and other internal features and there may be little distortion of delicate hairs, bristles, and setae (Gaban & Farley 2002).
La epifaringe (Figura 1) es, como en todos los Scarabaeini, una estructura compleja, membranacea, orientada horizontalmente y forma la pared dorsal de la camara preoral
localizada inmediatamente por debajo del clipeo.
RHUD has by far the most complete treatment of pre-: a prefix occurring originally in loanwords from Latin, where it meant "before" (preclude; prevent); applied freely as a prefix, with the meanings "prior to," "in advance of," "early," "beforehand," "before," "in front of," and with other figurative meanings (preschool; prewar; prepay: preoral
- Brisaster larvae have four pairs of arms: postoral and posterodorsal arms arising from the posterior body, and anterolateral and preoral
arms arising from the anterior portion of the oral hood.
Eisler's assertion "that sleep [is] a regressive phenomenon, a return to hypothetical preoral
or apnoeic stage, such as might be imagined for the unborn child" (419).