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  2. Thoracic diaphragm - Wikipedia

    en.wikipedia.org/wiki/Thoracic_diaphragm

    The muscle fibres of the diaphragm radiate outward from the central tendon. While the diaphragm is one muscle, it is composed of two distinct muscle regions: the costal, which serves as the driver in the work of breathing, and crural diaphragm, which serves as an "anchor;" attaching the muscle to the lower ribs and lumbar vertebrae.

  3. Phrenic nerve - Wikipedia

    en.wikipedia.org/wiki/Phrenic_nerve

    The right phrenic nerve passes over the brachiocephalic artery, posterior to the subclavian vein, and then crosses the root of the right lung anteriorly and then leaves the thorax by passing through the vena cava hiatus opening in the diaphragm at the level of T8. The right phrenic nerve passes over the right atrium.

  4. Muscles of respiration - Wikipedia

    en.wikipedia.org/wiki/Muscles_of_respiration

    The muscles of respiration are the muscles that contribute to inhalation and exhalation, by aiding in the expansion and contraction of the thoracic cavity. The diaphragm and, to a lesser extent, the intercostal muscles drive respiration during quiet breathing. The elasticity of these muscles is crucial to the health of the respiratory system ...

  5. Central tendon of diaphragm - Wikipedia

    en.wikipedia.org/wiki/Central_tendon_of_diaphragm

    The central tendon of the diaphragm is a thin but strong aponeurosis situated slightly anterior to the vault formed by the muscle, resulting in longer posterior muscle fibers. It is inferior to the fibrous pericardium , which fuses with the central tendon of the diaphragm via the pericardiacophrenic ligament .

  6. Respiratory tract - Wikipedia

    en.wikipedia.org/wiki/Respiratory_tract

    At the base of the lungs is a sheet of skeletal muscle called the diaphragm. The diaphragm separates the lungs from the stomach and intestines. The diaphragm is also the main muscle of respiration involved in breathing, and is controlled by the sympathetic nervous system.

  7. Breathing - Wikipedia

    en.wikipedia.org/wiki/Breathing

    The lungs are not capable of inflating themselves, and will expand only when there is an increase in the volume of the thoracic cavity. [6] [7] In humans, as in the other mammals, this is achieved primarily through the contraction of the diaphragm, but also by the contraction of the intercostal muscles which pull the rib cage upwards and outwards as shown in the diagrams on the right. [8]

  8. 65 Unsettling Medical Facts That Are Not For The Faint Of Heart

    www.aol.com/lifestyle/65-unsettling-medical...

    Image credits: Ludwig_Vista2 #7. Endometriosis (tissue from the womb) is not cancer. But it can send out cells that spread through your internal organs and grow, stick your guts together or block ...

  9. Vena caval foramen - Wikipedia

    en.wikipedia.org/wiki/Vena_caval_foramen

    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]