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n. pl. sple·ni·i (-nē-ī′)
Either of two muscles of the back of the neck, extending from the upper vertebrae to the base of the skull, that rotate and extend the head and neck.

[New Latin splēnius, from Latin splēnium, patch, plaster (from its shape), from Greek splēnion, from splēn, spleen.]

sple′ni·al (-nē-əl) adj.


n, pl -nii (-nɪˌaɪ)
(Anatomy) anatomy either of two flat muscles situated at the back of the neck that rotate, flex, and extend the head and neck
[C18: via New Latin from Greek splēnion a plaster]
ˈsplenial adj


(ˈspli ni əs)

n., pl. -ni•i (-niˌaɪ)
either of a pair of broad muscles at the back of the neck, serving to lift and turn the head.
[1725–35; < New Latin, for Latin splēnium < Greek splēníon plaster, patch]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.splenius - either of two flat muscles that extend from the upper vertebrae to the base of the skull and serve to rotate or flex or extend the head and neck
skeletal muscle, striated muscle - a muscle that is connected at either or both ends to a bone and so move parts of the skeleton; a muscle that is characterized by transverse stripes
References in periodicals archive ?
The four women who had the premutation did not have any suggestive signs or symptoms of FXTAS; however, in FMR1 premutation patients, a contrast-enhanced brain MRI should be used to identify imaging findings such as hyperintensity of the middle cerebellar peduncle, hyperintensity of the white matter in different zones of the central nervous system as the pontine nuclei, the insula, the splenius of the corpus callosum and the periventricular region; and generalized severe cerebral atrophy (29, 30).
14] suggested H reflex was reduced by about 80% in the left soleus and 77% in the right soleus after 10-15 min stimulation of the splenius muscle and the contralateral upper part of the trapezius.
trapezius, splenius capitis, and splenius cervicis) and adjacent structures were severed in order to enable the levator scapulae and/or rhomboid minor muscles to be exposed so that the superomedial connection between the scapula and the neck could be separated.
In long-standing cases of focal dystonia, such as spasmodic cervical torticollis, selective peripheral denervation of the sternocleidomastoid muscle, trapezius and splenius capitis muscles in the neck can lead to significant improvement in the torticollis (the Bertrand procedure).
Therefore, surface EMG was used to record the signals from the upper and lower rectus abdominis muscles, upper and lower erector spinae muscles and from the splenius muscle in different conditions of WBV and without vibration stimulus.
Este rasgo osteologico ha sido asociado al desarrollo de musculos nucales como el splenius cervicis, multifidus dorsi y semispinalis cervicis, comprometidos con la postura de la cabeza y en mantener fija la region toracica (Hatt, 1932; Hildebrand, 1988).
Although the shallow layer becomes the splenius spread in the cervical region, the intermediate area in humans is degenerated and the splenius is separated into the internal and external muscles.
TrPs were bilaterally searched in upper trapezius, sternocleidomastoid, splenius capitis, masseter, levator scapulae, superior oblique (extra-ocular), and suboccipital muscles.
Tortikolisde ipsilateral splenius kapitis ve kontralateral sternokleidomastoid kaslari, laterokolis de ipsilateral sternokle-idomastoid, splenius kapitis, skalen kaslar, levator skapula, semispinalis kapitis, longissimus kapitis ve diger postvertebral kaslar, omuz elevasyonunda ipsilateral trapezius ve levator skapula kaslari, retrokolisde bilateral splenius kapitis, trapez kasinin ust bolumu, semispinalis kapitis, longissimus kapitis ve diger derin postvertebral kaslar, anterokoliste ise bilateral sternokleidomastoid kaslari, skalen kaslar ve submental kaslar en sik etkilenen kas gruplaridir.