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Structure of diaphragm shown using a 3D medical animation still shot. The thoracic diaphragm, or simply the diaphragm (/ ˈ d aɪ ə f r æ m /; [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 ...
The esophageal hiatus is an oval opening [1] in (sources differ) the right crus of the diaphragm [1] /left crus of the diaphragm, with fibres of the right crus looping around the hiatus to form a sling (upon inspiration, this sling would constrict the esophagus, forming a functional (not anatomical) sphincter that prevents gastric contents from refluxing up the esophagus when intra-abdominal ...
The aortic hiatus is a midline [1]: 185 opening in the posterior part of the diaphragm giving passage to the descending aorta as well as the thoracic duct, and variably the azygos and hemiazygos veins. [2] It is the lowest and most posterior of the large apertures. [citation needed]
There are two openings of the thoracic cavity, a superior thoracic aperture known as the thoracic inlet and a lower inferior thoracic aperture known as the thoracic outlet. The thoracic cavity includes the tendons as well as the cardiovascular system which could be damaged from injury to the back, spine or the neck.
The diaphragm is the major muscle responsible for breathing.It is a thin, dome-shaped muscle that separates the abdominal cavity from the thoracic cavity. During inhalation, the diaphragm contracts, so that its center moves caudally (downward) and its edges move cranially (upward).
The caval opening of diaphragm [2] (also foramen of vena cava, [1] vena caval foramen [3] [1]) is an opening in the central tendon of diaphragm giving passage to the inferior vena cava [2] [3] as well as to some terminal [2] branches of [2] [1] the right phrenic nerve, [2] [3] and some lymphatic vessels en route to middle phrenic and mediastinal lymph nodes. [2]
The sternocostal triangle (foramina of Morgagni, Larrey's space, sternocostal hiatus, etc. [1]) are small zones lying between the costal and sternal attachments of the thoracic diaphragm. No vascular elements are present within this space. [2] The borders of this space are: Medial: the lateral border of the sternal part of the diaphragm
In humans and other mammals, the anatomy of a typical respiratory system is the respiratory tract.The tract is divided into an upper and a lower respiratory tract.The upper tract includes the nose, nasal cavities, sinuses, pharynx and the part of the larynx above the vocal folds.