semispinalis muscle

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sem·i·spi·na·lis mus·cle

the most superficial layer of the three layers of the transversospinal muscle; composed of semispinalis capitis, semispinalis cervicis, and semispinalis thoracis muscles.
References in periodicals archive ?
Scap., levator scapulae; Semispinalis, semispinalis muscles; C7-T1, between the seventh cervical spine and the first thoracic spine; C6-C7, between the sixth cervical spine and the seventh cervical spine.