myotome


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Related to myotome: sclerotome

myotome

 [mi´o-tōm]
1. an instrument for dividing muscles.
2. the muscle plate or portion of a somite that develops into voluntary muscle.
3. a group of muscles innervated from a single spinal nerve. adj., adj myotom´ic.

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]

myotome

/myo·tome/ (mi´o-tōm)
1. an instrument for performing myotomy.
2. the muscle plate or portion of a somite that develops into noncardiac striated muscle.
3. a group of muscles innervated from a single spinal segment.myotom´ic

myotome

(mī′ə-tōm′)
n.
1. A segmental mass of mesoderm in a vertebrate embryo that differentiates into skeletal muscle.
2. A muscle or group of muscles derived from one somite and innervated by a single segment of a spinal nerve.
3. A knife for dividing muscle during surgery.

myotome

[mī′ətōm]
Etymology: Gk, mys + temnein, to cut
1 also called myomere, the muscle plate of an embryonic somite that develops into a voluntary muscle.
2 a group of muscles innervated by a single spinal segment.
3 an instrument for cutting or dissecting a 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]

myotome

a muscle block that is repeated in each METAMERIC SEGMENT. Segmentation becomes much modified in the head region, and where paired limbs are developed.

myotome

muscles derived from a single embryonic somite, innervated by branches of the same spinal nerve

myotome (mīˈ··tīm),

n the collection of all muscles sharing a block of mesodermal tissue as their origin and innervated by a single spinal nerve segment.

myotome

1. an instrument for dividing muscles.
2. the muscle plate or portion of a somite that develops into voluntary muscle.
3. a group of muscles innervated from a single spinal nerve.
References in periodicals archive ?
Laser treatment has provided an entry to the barrier for the restoration of joint mobility, and assisted in the resetting of the myotomes for strength enhancement.
These muscles represent the myotomes for neural segments representing the arms (levels C5 through T1) and legs (levels L2 through S1).
On weeks 1, 5, 8, and 12, five larvae were lethally sampled (killed by an overdose of MS-222) from each tank for determination of SL, body height (BH, myotome height posterior to anus), and dry weight (DW).
If choosing a myotome choose a muscle that is hypertonic, and/or in which the points are tender to palpation.
This species of Lepidopsetta has the following combination of characters in adults: total gill rakers on first arch 6-11; on upper arch 1-3, rarely 4, with at least one rudimentary; total gill rakers on second arch 6-11; supraorbital pores 3-9; preopercular pores 5-7; lateral-line pores 70-91; sum of scales above and below lateral line 65-88; interorbital narrow; blind-side coloration white, with glossy highlights along myotome margins increasing anteriorly.
Electromyographic (EMG) studies revealed a left lumbar plexopathy and denervation in the left L1, L2, L3, and L4 myotomes, predominantly affecting the L2 and L3 myotomes.
The second section outlines common neurological tests and scales such as those for muscles, motor points, dermatomes and myotomes, spasticity findings, radiculopathies, traumatic brain injury assessment, stroke scales, and pressure ulcers.
Cobb and Langenbeck periosteal elevators that have been modified into both chisel tip and spoon tip myotomes can be helpful for enucleation.
Wilbourn and Aminoff reported that EMG findings in LSS most commonly resemble a chronic, but ongoing radiculopathy, evidenced by chronic motor unit action potential (MUAP) changes and fibrillation potentials restricted to distal myotomes (44).
Segmental muscle paralysis can occur in overlapping myotomes and may be seen in up to 7% of patients with vesicular lesions.