19, 7), thus initiating yet another bilateral symmetry.
(b) Tentacles with a bilateral arrangement, branched tentacles in addition to simple filiform ones; type of Branchiocerianthus.
- Mainly colonial, rarely solitary corals, with radial septa, but bilateral arrangement indicated by persistence of a main septum.
As a result, the Coelomata, and with them the Mollusca, present (in the first instance) the general condition of body known as bilateral symmetry; the dorsal is differentiated from the ventral surface, whilst a right and a left side similar to, or rather the complements of, one another are permanently established.
Their bilateral symmetry is obviously to be regarded as primitive, and the nervous system shows an original condition from which that of the asymmetrical twisted Gastropods can be derived.
But with these reservations it must unhesitatingly be said that concordats are bilateral or synallagmatic contracts, from which results an equal mutual obligation for the two parties, who enter into a juridical engagement towards each other.
Whatever the obligations of the state towards the ecclesiastical society may be in pure theory, in practice they become more precise and stable when they assume the nature of a bilateral convention by which the state engages itself with regard to a third party.
The merit of this definition, on the other hand, lies in its bilateral form, which calls attention to the need of characterizing both the religious attitude and the religious object to which the former has reference.
Much of the character of organisms is due to various symmetries, radial, bilateral, metameric and so forth, and these symmetries arise, partly at least, from the mode of growth by cell division and the marshalling of groups of cells to the places where they are destined to proliferate.
Pectinibranchia.-In this order there is no longer any trace of bilateral symmetry in the circulatory, respiratory and excretory organs, the topographically right half of the pallial complex having completely disappeared, except the right kidney, which is FIG.
In a corresponding manner the right side of the animal's body is somewhat less developed than the left, and to this extent there is a departure from the bilateral symmetry characteristic of Lamellibranchs.
He defined them as possessing radial instead of bilateral symmetry, and as apparently destitute of nervous system and sense organs, as having the circulatory system rudimentary or absent, and the respiratory organs on or coextensive with the surface of the body; he included under this title and definition five classes, - Echinodermata, Acalepha, Entozoa, Polypi and Infusoria.
12, D); the ambulacra thus formed are continuous from the peristome to the apical system of plates; the hydropore is connected with a definite plate of that system, and thus marks a secondary bilateral symmetry.
The Lamellibranchia are mainly characterized by the rudimentary condition of the head, and the retention of the primitive bilateral symmetry, the latter feature being accentuated by the lateral compression of the body and the development of the shell as two bilaterally symmetrical plates or valves covering each one side of the animal.
Regarding the Echinoderms as a whole in the light of the foregoing account, we may give the following analytic summary of the characters that distinguish them from other coelomate animals: They live in salt or brackish water; a primitive bilateral symmetry is still manifest in the right and left divisions of the coelom; the middle coelomic cavities are primitively transformed into two hydrocoels communicating with the exterior indirectly through a duct or ducts of the anterior coelom; stereom, composed of crystalline carbonate of lime, is, with few exceptions, deposited by special amoebocytes in the meshes of a mesodermal stroma, chiefly in the integument; reproductive cells are derived from the endothelium, apparently of the anterior coelom; total segmentation of the ovum produces a coeloblastula and gastrula by invagination; mesenchyme is formed in the segmentation cavity by migration of cells, chiefly from the hypoblast.
But, with advancing civilization and the consequent increase in the number of the conditions to be imposed on both parties, leases became mutual contracts, bilateral in form.
In the sphere of physiology and in the interpretation of associated arterial diseases much obscurity still remains; as, for instance, concerning the nature of the toxic substances which produce those bilateral changes in the kidneys which we call Bright's disease, and bring about the "uraemia" which is characteristic of it.
There was general agreement on foreign policy, whose pivots were close alliance with Czechoslovakia, the series of bilateral agreements which made up the Little Entente (Czechoslovakia and Yugoslavia Aug.
This arrangement, however, is by no means characteristic even of the Zaphrentidae, and in the family Cyathophyllidae most of the genera exhibit a radial symmetry in which no trace of the bilateral arrangement described above is recognizable, and indeed in the genus Cyathophyllum itself a radial arrangement is the rule.
Study of the earliest larval stages has always led to the conclusion that the Echinoderms must have descended from some freely-moving form with a bilateral symmetry, and, connecting this with the ideas just mentioned, we reach the conception that this supposed bilateral ancestor (or Dipleurula) may have become fixed, and may have gradually acquired a radial symmetry in consequence of its sedentary mode of life.
The elongation of the mouth and stomodaeum confer a bilateral symmetry on the body of the zooid, which is extended to other organs of the body.
Bilateral stenting is associated with a better long-term patency.
An asymmetric onset is usual, although the features usually become bilateral.
bilateral retinoblastoma who had 13 eyes containing active tumor.
Options after a positive test bilateral mastectomy, but if this option is chosen then logically removal the ovaries should also be considered?
The United States and Ukraine are committed to working together to complete our bilateral negotiations for Ukraine's accession to the WTO in 2005.
bilateral coloboma of the iris and retina.
bilateral donor in the world to Sudan.
There are also bilateral links with several other national programs.
The management of bilateral ureteric obstruction and renal failure in advanced prostate cancer.
Abstract In a survey in 1989 Spector observed that 70% of women who had had bilateral oophorectomy had never received hormone replacement therapy.
An oophorectomy carried out in the absence of ovarian cancer is known as a risk-reducing bilateral oophorectomy or prophylactic bilateral oophorectomy.
bilateral orchiectomy plays a palliative role for patients with advanced disease.
US tactics center on bilateral pacts designed to create a system of malleable clients for a future anti-Chavez alliance.
CT scanning of the brain indicated bilateral temporal, left parietal and anterior midbrain contusions.
Ultrasound demonstrated bilateral occlusion with a sensitivity of 100 %, and showed tubal patency with a specificity of 96% .
Patients who did not respond to the randomized phase of ECT were treated in an open, crossover phase using moderate dose bilateral ECT.
Signs include eyelid retraction, conjunctival redness and swelling, proptosis (either unilateral or bilateral ), periorbital edema, and ophthalmoplegia.
All patients underwent salvage radical prostatectomy and bilateral pelvic lymphadenectomy following irradiation failure.
Non-nuclear-weapon States Party to the Treaty so desiring may also obtain such benefits pursuant to bilateral agreements.
randomized phase of ECT were treated in an open, crossover phase using moderate dose bilateral ECT.
That would be aimed to normalize the bilateral relations.
PARTICIPANTS: Eleven children with bilateral retinoblastoma who had 13 eyes containing active tumor.
This is the third case reported of a patient with persistent mullerian duct syndrome and bilateral seminoma.
sour the bilateral relations between two historical allies.
To seek to accomplish this, we have formed a bilateral steering committee and developed an infrastructure protection framework.
He was found to be suffering from bilateral diffuse pleural thickening.
We have, for example, a bilateral peace treaty between equals, signed with Russia on 12 May 1997.
Children with hereditary forms usually have multifocal, bilateral retinoblastoma, whereas children with the somatic form have unilateral, unifocal disease.
RESULTS: chronic, bilateral anterior uveitis was present in six patients.
The swan-mussel has superficially a perfectly developed bilateral symmetry.
Other Lamellibranchs exhibit either a trochosphere larva which becomes a veliger differing only from the Gastropod's and Pteropod's veliger in having bilateral shell-calcifications instead of a single central one; or, like Anodonta, they may develop within the gill-plates of the mother, though without presenting such a specialized 210 1P -' 1 Ã‚°* larva as the glochidium.
Thus, about 1875, the distinction of Echinoderms from such radiate animals as jelly-fish and corals (see Coelentera), by their possession of a body-cavity ("coelom") distinct from the gut, was fully realized; while their severance from the worms (especially Gephyrea), with which some Echinoderms were long confused, had been necessitated by the recognition in all of a radial symmetry, impressed on the original bilateral symmetry of the larva through the growth of a special division of the coelom, known as the "hydrocoel," and giving rise to a set of water-bearing canals - the watervascular or ambulacral system.
Instead, people like Lamont are trying to sour the bilateral relations between two historical allies.
RESULTS: Chronic, bilateral anterior uveitis was present in six patients.
Adult Pathology 40yr laborer old with bilateral varus knees, bone on bone.
Mixed sleep apnea is a combination of the two.Treatment for sleep apnea includes the use of continuous positive airway pressure (CPAP) and Bi-PAP (bilateral positive airway pressure) machines, CPAP masks, and in some cases, surgery.
There are two types of NF: NF-1, also called vonRecklinghausen NF, and NF-2, also called acoustic NF (sometimes bilateral acoustic NF or BAN).
These include severe generalized joint hypermobility and bilateral hip dislocation present at birth.
There are four general types of injury, and an individual brachial plexopathy may include any or all of these injury types, on one or both (bilateral) sides of the body.
An individual brachial plexopathy may include any or all of these injury types, on one or both (bilateral) sides of the body.
Breech deliveries increase the risk of brachial plexopathy by 175-fold, often causing bilateral injuries to the lower nerve roots of the brachial plexus.
When retinoblastoma occurs independently in both eyes, it is then called bilateral retinoblastoma.
Individuals with multiple independent tumors, bilateral retinoblastoma, or trilateral retinoblastoma are more likely to be affected with the inherited form of retinoblastoma.
People with an inherited form of retinoblastoma are more likely to have a tumor in both eyes (bilateral) and are more likely to have more than one independent tumor (multifocal) in one or both eyes.
Although most people with the inherited form of retinoblastoma develop bilateral tumors, approximately 15 percent of people with a tumor in only one eye (unilateral) are affected with an inherited form of retinoblastoma.
If a patient with unilateral or bilateral retinoblastoma has a relative or relatives with retinoblastoma, it can be assumed that they have an inherited form of retinoblastoma.
Even when there is no family history, most cases of bilateral and trilateral retinoblastoma are inherited, as are most cases of unilateral, multifocal retinoblastoma.
It is also important to establish whether the cancer is unilateral (one eye) or bilateral (both eyes), multifocal or unifocal.
The treatment chosen depends on the size and number of tumors, whether the cancer is unilateral or bilateral, and whether the cancer has spread to other parts of the body.
For example, a patient with bilateral retinoblastoma has this retinal tumor in both eyes.
It may be advisable for patients with bilateral retinoblastoma or an inherited form of retinoblastoma to undergo periodic screening for the brain tumors found in trilateral retinoblastoma.
There are 12 sets of bilateral cranial nerves originating in the posterior portion of the brain stem, called the pons.
They are sometimes found on both sides (bilateral hernia) and they occur nine times more often in boys than girls.
If a cleft occurs on both sides, it is called a bilateral cleft.
Clefts may affect the left or right side of the mouth only (unilateral) or both sides (bilateral).
Bilateral cleft lips are usually repaired in two surgeries, about a month apart.
Bilateral cleft lip-A cleft that occurs on both sides of the lip.
V., et al. "Early craniofacial morphology and growth in children with bilateral complete cleft lip and palate."
Gmyrek, Glenn A., et al. "Bilateral Laparoscopic Adrenalectomy as a Treatment for Classic Congenital Adrenal Hyperplasia Attributable to 21-Hydroxylase Deficiency."
It can be performed as a bilateral exercise, which uses both arms simultaneously, or as a unilateral exercise, which uses one arm at a time.
A bilateral biceps exercise can be performed holding dumbbells or a barbell in a standing position.
After the 2005 diagnosis, Lyon underwent a modified radical bilateral mastectomy, which involved removing both of her breasts and 29 of her lymph nodes.
Other Lamellibranchs exhibit either a trochosphere larva which becomes a veliger differing only from the Gastropod's and Pteropod's veliger in having bilateral shell-calcifications instead of a single central one; or, like Anodonta, they may develop within the gill-plates of the mother, though without presenting such a specialized 210 1P -' 1 °* larva as the glochidium.
He has bilateral optic nerve atrophy, which affects the visual information passing from the eye to the brain.
Administrations can continue to create these bilateral agreements with each other.
The findings showed impaired recognition of fear following bilateral temporal lobe damage when this included the amygdala.
Selective bilateral damage to the human amygdala is rare, offering unique insights into its functions.
A final grievance mentioned by NGOs is that the government is very averse to bilateral and multilateral donors channeling resources straight to NGOs.
bilateral in nature, but they may also be multilateral, depending upon the subject matter.
bilateral operable cataract, had surgery in one or both eyes.
bilateral oophorectomy had never received hormone replacement therapy.
Symptoms Symptoms are often intermittent and are usually bilateral.
Some causes are mainly unilateral whereas others like vitamin A deficiency are often bilateral.
These have brought together bilateral trading on a telephone market into a unified trading platform.
Organization Erith School is the only bilateral school in Bexley.
And indeed, the main topic of the more lively discussions was not bilateral.
I'm a home health nurse treating a patient who had cellulitis with ulcerations to bilateral lower extremities.
Generalized epileptic seizures involve both cerebral hemispheres from the onset of the seizure, and consequently any motor manifestations are bilateral.
An Action Medical Research team has been looking at ways of reducing the incidence of hip dislocation in children with bilateral cerebral palsy.
Each Whitehall department is encouraged to agree a bilateral concordat with each of the Devolved Administrations.
Six fields were identified as priority areas for bilateral cooperation.
Bilateral discussions have taken place between him and faculty deans, who have been informed of the proposed capped salary figures for their faculty.
How do you manage someone with painful bilateral hips with 30 degrees fixed flexion deformity.
France, Germany, the US and Japan account for almost three quarters of all TC given by bilateral donors.
This was usually at the initiative of bilateral and multilateral donors who followed their own procedures.
The tumors of the bilateral epididymis were surgically resected and of the right renal tumor enucleated.
An extensive abdominoperineal resection was performed leaving a huge perineal defect (figure 4) which was reconstructed using bilateral myocutaneous gracilis flaps.
formalize a bilateral test ban agreement with India.
Comparing faces against the baseline (scrambled faces) showed bilateral activation of the fusiform gyrus.
Both the healthy volunteers and the patients showed bilateral activation of the parahippocampal gyrus during the retrieval.
Investigations Children presenting with an acute pulmonary bleed will have a reduced hemoglobin and widespread bilateral infiltrates on chest x-ray.
In addition there is the suggestion of bilateral hilar lymphadenopathy.
Alliances tend, in reality, to be a series of bilateral relationships between airlines rather than truly multilateral.
We are also willing to strengthen this by entering into bilateral agreements on no-first use or a multilateral negotiations on a global no-first use.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.