What's the difference between metamere and metamerism?
Metamere
Definition:
(n.) One of successive or homodynamous parts in animals and plants; one of a series of similar parts that follow one another in a vertebrate or articulate animal, as in an earthworm; a segment; a somite. See Illust. of Loeven's larva.
Example Sentences:
(1) This is especially evident on the ventral surface of the metamerically arranged axial muscles.
(2) The sloppy paired locus is involved in the establishment of the metameric body plan of the Drosophila embryo.
(3) In Haemopis embryos labeling of both nerve fibers and cell bodies with the antibody appears as expected for a metameric animal in a rostrocaudal temporal gradient from about day 5-6.
(4) These six metameres also are responsible for the existence of the pronephros.
(5) In each metamere, the area of cell migration takes place near the caudal border of the somite and, from one somite to the other, the number of migrating cells increases in a cephalo-caudal direction.
(6) The differences in levels between males and females and between anatomical regions during imaginal life suggest, in this species of cockroach, the physiological importance of the metameric organization in metabolic pathways or functional aspects of biogenic amines.
(7) Prior to dorsal closure, expression of the Drosophila gene is observed in non-neuronal tissues, especially in the mesectoderm and presumptive epidermis, both in a metameric pattern.
(8) Moreover, such a causative role of cell lineage is suggested by cases where homologous cell types characteristic of a symmetrical and longitudinally metameric body plan arise via homologous cell lineages.
(9) The case is characterized by successful counteracting the main clinical manifestations of Raynaud's phenomenon by the local metameric application of cerebrolysin (neuromeric, scleromeric puncturing) employed by the authors for the first time for the disease treatment.
(10) In mild contusion of the first-second segments the leading clinical symptoms in the acute period were pareses of the arms and paralyses of hands with retained reflexes and insignificant impairments of sensitivity in fingers, i.e., the level of clinical manifestations did not correspond with the conventional segmento-metameric innervation.
(11) A second group of patients had SAs that remained unchanged despite AVM changes (six of seven of these were in patients with metameric angiomatosis).
(12) The larval development of P. porosa is characterized by its passing in the cavity of the external cyst, by the complete separation of anlages of the body of the larva and cercomere at the metamere stage and by the intensive growth of the cercomere after the invagination of the larva.
(13) Life forms of plants are divided into thirteen types corresponding to the nature of their basic metameres.
(14) The invagination process of the metamere is described.
(15) This metameric migration pattern is thought to be caused by molecular differences between the rostral and caudal portions of the somite.
(16) Identification of specific neuronal populations and their projections in the developing hindbrain reveals a segmental organization in which pairs of metameric epithelial units cooperate to generate the repeating sequence of cranial branchiomotor nerves.
(17) In all three organisms, the pattern of engrailed expression at the segmented germ band stage is similar, and the parasegments are the first metameres to form.
(18) When neural crest cells were ablated surgically prior to their emigration from the neural tube, the pattern of T-cadherin immunoreactivity was unchanged compared to unoperated embryos, suggesting that the metameric T-cadherin distribution occurs independent of neural crest cell signals.
(19) Each nerve is in relation with a column of motoneurons whose both the metameric extension and the exact topography in the anterior horn have been defined.
(20) It allows to accurately reach the desired metameric level, avoiding massive sympathetic blockade, and providing a steady hemodynamic condition.
Metamerism
Definition:
(n.) The symmetry of a metameric structure; serial symmetry; the state of being made up of metameres.
(n.) The state or quality of being metameric; also, the relation or condition of metameric compounds.
Example Sentences:
(1) This is especially evident on the ventral surface of the metamerically arranged axial muscles.
(2) The sloppy paired locus is involved in the establishment of the metameric body plan of the Drosophila embryo.
(3) In Haemopis embryos labeling of both nerve fibers and cell bodies with the antibody appears as expected for a metameric animal in a rostrocaudal temporal gradient from about day 5-6.
(4) These six metameres also are responsible for the existence of the pronephros.
(5) In each metamere, the area of cell migration takes place near the caudal border of the somite and, from one somite to the other, the number of migrating cells increases in a cephalo-caudal direction.
(6) The differences in levels between males and females and between anatomical regions during imaginal life suggest, in this species of cockroach, the physiological importance of the metameric organization in metabolic pathways or functional aspects of biogenic amines.
(7) Prior to dorsal closure, expression of the Drosophila gene is observed in non-neuronal tissues, especially in the mesectoderm and presumptive epidermis, both in a metameric pattern.
(8) Moreover, such a causative role of cell lineage is suggested by cases where homologous cell types characteristic of a symmetrical and longitudinally metameric body plan arise via homologous cell lineages.
(9) The case is characterized by successful counteracting the main clinical manifestations of Raynaud's phenomenon by the local metameric application of cerebrolysin (neuromeric, scleromeric puncturing) employed by the authors for the first time for the disease treatment.
(10) In mild contusion of the first-second segments the leading clinical symptoms in the acute period were pareses of the arms and paralyses of hands with retained reflexes and insignificant impairments of sensitivity in fingers, i.e., the level of clinical manifestations did not correspond with the conventional segmento-metameric innervation.
(11) A second group of patients had SAs that remained unchanged despite AVM changes (six of seven of these were in patients with metameric angiomatosis).
(12) The larval development of P. porosa is characterized by its passing in the cavity of the external cyst, by the complete separation of anlages of the body of the larva and cercomere at the metamere stage and by the intensive growth of the cercomere after the invagination of the larva.
(13) Life forms of plants are divided into thirteen types corresponding to the nature of their basic metameres.
(14) The invagination process of the metamere is described.
(15) This metameric migration pattern is thought to be caused by molecular differences between the rostral and caudal portions of the somite.
(16) Identification of specific neuronal populations and their projections in the developing hindbrain reveals a segmental organization in which pairs of metameric epithelial units cooperate to generate the repeating sequence of cranial branchiomotor nerves.
(17) In all three organisms, the pattern of engrailed expression at the segmented germ band stage is similar, and the parasegments are the first metameres to form.
(18) When neural crest cells were ablated surgically prior to their emigration from the neural tube, the pattern of T-cadherin immunoreactivity was unchanged compared to unoperated embryos, suggesting that the metameric T-cadherin distribution occurs independent of neural crest cell signals.
(19) Each nerve is in relation with a column of motoneurons whose both the metameric extension and the exact topography in the anterior horn have been defined.
(20) It allows to accurately reach the desired metameric level, avoiding massive sympathetic blockade, and providing a steady hemodynamic condition.