myomere

(redirected from myomeres)
Also found in: Encyclopedia.

myomere

 [mi´o-mēr]
myotome; the muscle plate or portion of a somite that develops into voluntary muscle.

my·o·tome

(mī'ō-tōm),
1. A knife for dividing muscle.
2. In embryos, that part of the somite that develops into skeletal muscle. Synonym(s): muscle plate
3. All muscles derived from one somite and innervated by one segmental spinal nerve.
4. In primitive vertebrates, the muscular part of a metamere. Synonym(s): myomere
[myo- + G. tomos, a cut]

myomere

/myo·mere/ (mi´o-mēr) myotome (2).

myomere

See myotome.

my·o·tome

(mī'ō-tōm)
1. A knife for dividing muscle.
2. In embryos, that part of the somite that develops into skeletal muscle.
Synonym(s): muscle plate.
3. All muscles derived from one somite and innervated by one segmental spinal nerve.
4. In primitive vertebrates, the muscular part of a metamere.
Synonym(s): myomere.
[myo- + G. tomos, a cut]

myomere

myotome; the muscle plate or portion of a somite that develops into voluntary muscle.
Mentioned in ?
References in periodicals archive ?
In all instances where the tail-fins exhibited > 50% damage, the myomeres were also damaged.
All larvae have 26 myomeres (6-8 preanal myomeres during the preflexion stage, shifting to 10-11 during the postflexion stage).
Blocks of mesoderm positioned beside the notochord give rise to the muscles, limbs, spine and dermis, called somites, which segment, forming myomeres widely used in taxonomic studies of fishes (Araujo-Lima and Donald, 1988; Wolpert et al.
Species Trunk myomeres Circumoral teeth American Brook Lamprey 64-75 Unicuspid Northern Brook Lamprey 47-56 Unicuspid Silver Lamprey 47-55 Unicuspid Chestnut Lamprey 49-56 Bicuspid Species Dorsal fin Lateral line pores American Brook Lamprey Separate None Northern Brook Lamprey Connected None Silver Lamprey Connected Black Chestnut Lamprey Connected Black Table 2.
On the trunk, the new neuromasts appear in middle intervening positions with respect to the initial ones; they also tend to form at different myomere level on both sides (Fig.
Lead author Professor Simon Conway Morris, from Cambridge University, said: "The discovery of myomeres is the smoking gun that we have long been seeking.
Myomeres number of fish larvae has been identified as a tool for taxonomic identification (ARAUJO-LIMA & DONALD, 1988).
The number of myomeres distinguishes species: Indonesian leptocephali have about 10 fewer myomeres than the 112 to 118 typical of Japanese larvae.
Whenever possible, the number of myomeres, spines, and rays of dorsal, anal, caudal, pectoral, and pelvic fins were recorded.
After nine hours, the embryo increased in size, mainly around the caudal region, with the myomeres or segments of the developed muscles becoming visible (Fig.