2021年6月11日 · The diaphragm is a muscle that helps you inhale and exhale (breathe in and out). This thin, dome-shaped muscle sits below your lungs and heart. It’s attached to your sternum (a bone in the middle of your chest), the bottom of your rib cage and your spine.

2023年9月19日 · The diaphragm is much more than just a sheath separating your thoracic and abdominal cavities. This article will examine this intricate and crucial muscle in detail, looking at its anatomy, function and structures which pass through it.

2025年1月23日 · The diaphragm is a fibrous muscle that runs between the chest and abdomen, separating these two large cavities. It is asymmetric, as its right dome is larger than the left dome. The diaphragm has openings that allow certain structures to span the …

2025年1月24日 · Diaphragm, dome-shaped, muscular and membranous structure that separates the thoracic and abdominal cavities in mammals; it is the principal muscle of respiration. Contraction of the diaphragm increases the internal height of the thoracic cavity, thus lowering its internal pressure and causing inspiration of air.

The thoracic diaphragm, or simply the diaphragm (/ ˈdaɪəfræm /; [1] Ancient Greek: διάφραγμα, romanized: diáphragma, lit. 'partition'), is a sheet of internal skeletal muscle [2] in humans and other mammals that extends across the bottom of the thoracic cavity.

2024年6月28日 · The diaphragm is a barrier between the thoracic and abdominal cavities, preventing abdominal organs from protruding into the chest cavity. It plays a vital role in maintaining intra-abdominal pressure by contracting along …

2025年1月16日 · The main function of the diaphragm is to assist in respiration. During inhalation, the diaphragm contracts and flattens, creating a negative pressure within the thoracic cavity. This negative pressure helps to draw air into the lungs. During exhalation, the diaphragm relaxes and returns to its dome-shaped position, expelling the air from the lungs.

2023年7月24日 · The diaphragm in the thorax is called the thoracic diaphragm and serves as an important anatomical landmark that separates the thorax, or chest, from the abdomen. It functions during breathing when it contracts to enlarge the thoracic cavity and reduce the intrathoracic pressure so that lungs may expand and fill their alveoli with air.

2023年8月8日 · The diaphragm separates the thoracic cavity from the abdominal cavity. It is a double-domed, musculotendinous partition that consists of a continuous sheet of muscle surrounding a central tendon. The peripheral muscle is named according to its peripheral points of attachment. The sternal part attaches to the posterior aspect of the xiphoid process.

2017年9月9日 · Forming the floor of the chest cavity, the main function of the diaphragm is to control its volume by means of contracting and relaxing [19].