What is levatores costarum?
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The levatores costarum (or levator costae) muscles are paired muscles of the posterior thorax. They number twelve on each side and attach to the transverse processes of C7 to T11 vertebrae and the ribs below, helping to elevate the ribs during respiration.
What is the function of the levatores costarum brevis?
Levatores costarum functions in elevating the ribs, and produces rotation and lateral flexion of the thoracic vertebrae.
What Innervates the levatores costarum?
levatores costarum are innervated by branches of the lateral branch of the ramus dorsalis of the respective thoracic nerve. An additional branch of the r. muscularis proximalis of the intercostal nerves 1-3 innervates the lateral part of the levator muscles of the second to the fourth rib.
What does the term levator mean?
Definition of levator : a muscle that serves to raise a body part — compare depressor.
What does the head of a rib articulate with?
Vertebrae. The rib heads articulate with vertebra by two facets – the costovertebral joints. The superior facet articulates with the vertebra above.
Which muscles lie inside the rib cage?
The muscles that make up the thorax wall include the three intercostal muscles (external, internal, and innermost), the subcostalis, and the transversus thoracis. Eleven pairs of intercostal muscles are in each of the intercostal spaces, arranged from superficial to deep.
What is serratus posterior inferior?
The serratus posterior inferior muscle is a thin, quadrilateral muscle of the posterior thorax. It extends from the vertebrae to the ribs and aids in deep inspiration.
What is rectus anatomy?
straight muscles
Definition of rectus : any of several straight muscles (as of the abdomen)
What does the root word mean in the term levator?
to raise, lift up
levator (n.) 1610s in anatomy, “type of muscle that raises or elevates,” from medical Latin levator (plural levatores) “a lifter,” from Latin levatus, past participle of levare “to raise, lift up; make lighter” (from PIE root *legwh- “not heavy, having little weight”).
What is a tubercle rib?
Tubercle. The tubercle, immediately after the neck, is a prominence on the external surface of the rib which contains a medial facet that articulates with the transverse process of the numerically corresponding vertebra. This area is called the articular part.
What is the meaning of Levatores costarum?
Medical Definition of levatores costarum. : a series of 12 muscles on each side that arise from the transverse processes of the seventh cervical and upper 11 thoracic vertebrae, that pass obliquely downward and laterally to insert into the outer surface of the rib immediately below or in the case of the lowest four muscles…
Where does the levator costarum attach to the rib cage?
Each fan-shaped levator costarum muscle attaches near the tip of a transverse process of C7 to T11 vertebrae and passes inferolaterally to attach to the superior border of the rib immediately below, between the tubercle and angle of the rib 1-3. They are superficial to the external intercostal muscles.
What is the meaning of costae navium?
Costae navium. The sides of ships. Costae aheni. The sides of a cauldron. Tergora diripere costis. To tear off the skin. muscolo elevatore delle coste: muscolo elevatore delle coste (Italian) Noun muscle – levatores costarum muscle, levatores costarum Synonyms elevatore delle coste
What is the definition of levator?
Definition of levator : a muscle that serves to raise a body part — compare depressor : a muscle that serves to raise a body part — compare depressor sense a