What's the difference between prothoracic and prothorax?
Prothoracic
Definition:
(a.) Of or pertaining to the prothorax.
Example Sentences:
(1) The ventral-most four fibers are innervated by four neurons whose cell bodies are clustered in the ventral, ipsilateral, prothoracic region.
(2) These observations indicate that the PTTH-refractoriness characteristic of prothoracic glands during diapause results from a lesion in the steroidogenic pathway occurring beyond the level of the PTTH receptor-adenylate cyclase system.
(3) The establishment of these new functional connections by the deafferented Int-1, however, does not appear to affect the physiological responses of Int-1's homolog on the intact side of the prothoracic ganglion which also innervates this auditory neuropil.
(4) The extra sex comb trait is a homeotic transformation of the mesothoracic and metathoracic legs into prothoracic legs.
(5) The role of juvenile hormone (JH) in the regulation of prothoracic gland activity was investigated during the early days of the last (fifth) larval instar of Bombyx mori.
(6) The prothoracic glands (PGs) of Lymantria dispar (day-5 female, last-stage larvae) produce both ecdysone and an ecdysteroid which has the same retention time on reverse-phase liquid chromatography (RPLC) as a known standard of 3-dehydroecdysone.
(7) The mesothoracic leg showed avoidance learning as fast and as well as the prothoracic leg but was unable to support escape learning.
(8) Cauterization of the pars intercerebralis after the critical period of the prothoracic gland activity does not affect moulting in any way.
(9) The data suggest that cyclic AMP may act as a second messenger in the stimulation of prothoracic gland alpha-ecdysone secretion by the prothoracicotropic brain hormone.
(10) As reported previously, the metathoracic imaginal discs stain most intensely with anti-Ubx, with some mesothoracic and no prothoracic expression detectable.
(11) The prothoracic glands of the tobacco hornworm, Manduca sexta, were studied to determine if cyclic AMP is involved in the regulation of alpha-ecdysone secretion.
(12) In cockroaches excessive fluttering of wings and convulsions upon administration of thiosemicarbazide following severance of the central nerve cord between the subesophageal and prothoracic ganglions were induced.
(13) Direct inputs from sensory neurones of specific prosternal and head hairs initiate spikes in these interneurones in the prothoracic ganglion.
(14) When corpora allata were removed from freshly ecdysed fifth instar larvae, the prothoracic glands became competent to respond to PTTH in 6 hr and exhibited secretory activity in vitro 9 hr after the allatectomy.
(15) The prothoracicotropic hormone (PTTH) is an insect cerebral peptide that stimulates the prothoracic glands to produce the steroid hormone ecdysone thus initiating molting and metamorphosis.
(16) Other studies on the possibility of a feedback effect when growth hormones are used for insect control suggest that there is a positive feedback relationship between the hormone titre and the activity of prothoracic glands and corpora allata, but the details are not yet clear.
(17) Removal of the prothoracic glands early during the 5th instar of Manduca sexta prevented the larvae from wandering and from further development.
(18) Ecdysteroid production by the prothoracic glands of the tobacco hornworm, Manduca sexta was found to be under feedback control by the ecdysteroids in hemolymph using both culture in vivo in diapausing pupae lacking the brain-corpora cardiaca-corpora allata complex and the prothoracic glands and culture in vitro.
(19) These data suggest that JH acts during the early stages of the instar to suppress both the secretory activity of prothoracic glands and also the acquisition of competence to respond to PTTH.
(20) It is shown that homozygotes for the larval and prepupal allele have underdeveloped prothoracal glands.
Prothorax
Definition:
(n.) The first or anterior segment of the thorax in insects. See Illusts. of Butterfly and Coleoptera.
Example Sentences:
(1) This orientation centred prey on the median plane and brought it within an attack zone relative to the prothorax.
(2) The device was used to train cockroaches with intact central nervous systems to keep a mesothoracic leg lifted to avoid shock to the prothorax.
(3) Four of these patients had fracture of prothorax ribs, and 10 fracture of lateral thorax ribs.
(4) The absence of Antp+ function during embryogenesis results in the larval mesothorax exhibiting characteristics of the prothorax and an ensuing lethality; the loss of Antp+ function in the development of the adult thorax causes specific portions of the leg, wing and humeral imaginal discs to develop abnormally.
(5) First, tsh is required critically for the identity of the anterior prothorax.
(6) A map of 60 + 1 cells is repeated in each of the three thoracic segments, with an additional median cell developing late at the anterior end of the prothorax.
(7) However, those imaginal discs that arise anteriorly to the prothorax do not appear to be sensitive to this form of gene regulation.
(8) To investigate further these intrinsic properties and also extrinsic factors involved in guiding axon growth and determining synaptic connectivity, pieces of epidermis from the head were transplanted to the posterior head, prothorax, or mesothorax.
(9) It has been shown previously that in Polycomb lethal embryos posterior transformations require the normal function of the BX-C. We show here that anterior transformations of the mesothorax and other segments require the normal function of the Sex combs reduced (Scr) locus, also necessary for the normal development of the prothorax and some head segments.
(10) Decapitating newly emerged Blaberus craniifer females near the prothorax severs connections between the suboesophageal and prothoracic ganglia, thus depriving them of the neuroendocrine cephalic complex (including brain and suboesophageal ganglion) and the anterior end of prothoracic glands (PGs).