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Rear upper cog muscle and posterior inferior cog muscle

, medical expert
Last reviewed: 19.10.2021
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Rear upper cog muscle - m. Serratus posterior superior

Raises II, III, IV, V edges.

Start: from the spinous processes of the last two cervical vertebrae and the first two thoracic vertebrae

Attachment: II - V Rib

Innervation: nn. Intercostales Thl-Th4

Diagnostics: The patient sits slightly bending forward, the hand from the surveyed side freely hangs; you can place her brush in the opposite armpit for a more complete retraction of the scapula. The scapula should be displaced laterally and drawn to open the trigger zones localized in the muscle. The posterior upper dentate muscle is palpated through the trapezoidal and rhomboid muscles. Vigorous palpation causes a local convulsive response of the fibers of the trapezius muscle, which are recognized by their horizontal orientation. Trigger zones localized in the posterior upper dentate muscle are identified as a site of extremely deep soreness in the muscle tape when it is pressed against the underlying rib. The pressure on these trigger zones clearly causes a characteristic pattern of reflected pain.

Reflected pain: Trigger zones of this muscle often cause pain in the shoulder blade and shoulder area. Typical for hitting the posterior upper cog muscle is a dull deep pain under the upper edge of the scapula. The pain is localized more deeply than the pain pattern caused by the trigger zone of the middle portion of the trapezius muscle. Along with this, quite intense pain is felt above the posterior edge of the heliant and long head of the triceps arm muscle. Often, vna captures the entire region of the triceps muscle with the epicenter in the zone of the morning epicondyle of the shoulder, and then spreads along the elbow surface of the forearm and pastern, including the entire little finger. In front of the pain can spread over the chest.

The posterior inferior cog muscle is m. Serratus posterior inferior

It mixes the lower ribs back and forth and this helps to widen the chest in the lower part (deep breath).

Start: from the spinous processes of the XII thoracic vertebra and the first three lumbar vertebrae.

Attachment: IX - XII edge.

Innervation: nn. Intercostales T9-T12

Diagnosis: Painful trigger zones are revealed with superficial palpation at the sites of muscle attachment to the ribs.

Reflected bol: The active trigger zone in the lower posterior dentate muscle causes painful sensations in the lower back and in the area of the lower ribs.

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