myotome

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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

(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.

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.
References in periodicals archive ?
Shh shows positive effects on muscle development by directing progenitor cells to Myf5-/MyoD-positive committed myocytes in the myotome by downregulating Pax3/Pax7 expression [25].
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.
A neurovascular screen assessed deep tendon reflexes, myotomes, and dermatomes of the upper quadrant.
This theory has arisen from the observation that the bone and soft tissues affected by melorheostosis belong to functional units called sclerotomes, analogous to dermatomes or myotomes.
The ASIA Standard Neurological Classification of Spinal Cord Injury and ASIA Impairment Scale (ASIA-IS) incorporates the assessment of key myotomes and sensory points within dermatomes to determine neurological, motor and sensory levels of impairment, and assign an associated classification grade (A-D), in patients following spinal cord damage (Maynard et al 1997).
* Myotomes. 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).
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.
It presents maps of dermatomes, myotomes, sclerotomes and acupuncture channels in the head, trunk and limbs.
The final chapter is a 110-page reference summarizing muscle anatomy, muscles as part of motions, muscle innervation, and myotomes. The book's two-color illustrations have been revised for this edition.
Segmental recording of cortical motor evoked potentials from thoracic paravertebral myotomes in complete spinal cord injury.