Muscles Of The Thorax Origin Insertion Function Youtube Content0:00 introduction0:10 division of the thoracic muscles1:05 subclavius muscle1:24 serratus anterior1:58 pectoralis minor2:23 pectoralis major2:56 subco. 3d anatomy tutorial on the muscles of the thoracic wall. join me on instagram: instagram theanatomyzone website.
Muscles Origin Insertion Actions Youtube Content:0:00 introduction0:51 parts of skeletal muscle1:44 muscles of mastication2:04 temporal muscle2:40 masseter muscle3:11 medial pterygoid muscle4:00 lat. The thoracic wall is made up of five muscles: the external intercostal muscles, internal intercostal muscles, innermost intercostal muscles, subcostalis, and transversus thoracis. these muscles are primarily responsible for changing the volume of the thoracic cavity during respiration. other muscles that do not make up the thoracic wall, but attach to it include the pectoralis major and minor. There are 11 pairs of external intercostal muscles. they run inferoanteriorly from the rib above to the rib below, and are continuous with the external oblique of the abdomen. attachments: originate at the lower border of the rib, inserting into the superior border of the rib below. actions: elevates the ribs, increasing the thoracic volume. Muscles of the thorax. the muscles of the thorax include both the diaphragm as well as the muscles of the thoracic cage. the diaphragm can be located below the lungs and consists of a sheet of skeletal muscle which displays a double domed structure. the diaphragm is important as it separates the thoracic cavity from the abdominal cavity and.
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