WebJul 5, 2024 · Pectoralis major and minor – pulls ribs outwards. Serratus anterior – elevates the ribs (when the scapulae are fixed). Latissimus dorsi – elevates the lower ribs. Active Expiration. Active expiration utilises the contraction of several thoracic and abdominal muscles. These muscles act to decrease the volume of the thoracic cavity: WebMay 31, 2024 · The pectoralis major, the largest muscle of the pectoral region, is a thick, fan-shaped muscle superior to all chest muscles under the breast. The word pectus comes …
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WebPectoralis major: Latissimus dorsi: To allow antagonistic pairs to work efficiently, other muscles called fixators assist by supporting and stabilising the joint and the rest of the body. WebJan 10, 2024 · pectoral muscle noun : any of the muscles which connect the front walls of the chest with the bones of the upper arm and shoulder and of which there are two on each side in the human body Medical Definition pectoral muscle noun : pectoralis Last Updated: 30 Mar 2024 - Updated example sentences Love words? Need even more definitions? boardwalk drive baton rouge
Pectoral Definition & Meaning - Merriam-Webster
WebApr 15, 2024 · The pectoralis major is a fan-shaped muscle in the front of your chest wall. The muscle has two heads: the clavicular head and the sternocostal head. Location The … WebJul 28, 2024 · Pectoralis minor is a skeletal muscle that pushes forward and draws down the scapula or raises the ribs. It also stabilizes the scapula during movement. Literal meaning. Lesser breast. Interesting information. Pectoralis minor is a thin, triangular muscle, located at the upper part of the chest, beneath the Pectoralis major. WebPoland syndrome is a disorder in which affected individuals are born with missing or underdeveloped muscles on one side of the body, resulting in abnormalities that can affect the chest, shoulder, arm, and hand. The extent and severity of the abnormalities vary among affected individuals. People with Poland syndrome are typically missing part ... boardwalk empire 123 movies