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  2. Intercostal space - Wikipedia

    en.wikipedia.org/wiki/Intercostal_space

    The intercostal space (ICS) is the anatomic space between two ribs (Lat. costa). Since there are 12 ribs on each side, there are 11 intercostal spaces, each numbered for the rib superior to it. Since there are 12 ribs on each side, there are 11 intercostal spaces, each numbered for the rib superior to it.

  3. Intercostal veins - Wikipedia

    en.wikipedia.org/wiki/Intercostal_veins

    The intercostal veins are a group of veins which drain the area between the ribs ("costae"), called the intercostal space. They can be divided as follows: Anterior intercostal veins; Posterior intercostal veins. Posterior intercost vein that drain into the Supreme intercostal vein - 1st intercostal space

  4. Rib cage - Wikipedia

    en.wikipedia.org/wiki/Rib_cage

    The internal surface, smooth, and concave, is directed downward and a little inward: on its posterior part there is a short costal groove between the ridge of the internal surface of the rib and the inferior border. It protects the intercostal space containing the intercostal veins, intercostal arteries, and intercostal nerves. [6] [4]

  5. Internal intercostal muscles - Wikipedia

    en.wikipedia.org/wiki/Internal_intercostal_muscles

    The internal intercostal muscles (intercostales interni) are a group of skeletal muscles located between the ribs.They are eleven in number on either side. They commence anteriorly at the sternum, in the intercostal spaces between the cartilages of the true ribs, and at the anterior extremities of the cartilages of the false ribs, and extend backward as far as the angles of the ribs, hence ...

  6. Endothoracic fascia - Wikipedia

    en.wikipedia.org/wiki/Endothoracic_fascia

    The endothoracic fascia is deep to the intercostal space. The endothoracic fascia is the layer of loose connective tissue deep to the intercostal spaces and ribs, separating these structures from the underlying pleura. This fascial layer is the outermost membrane of the thoracic cavity. The endothoracic fascia contains variable amounts of fat.

  7. Costocervical trunk - Wikipedia

    en.wikipedia.org/wiki/Costocervical_trunk

    This branch is not constant, but is more commonly found on the right side; when absent, its place is supplied by an intercostal branch from the aorta. Each intercostal gives off a posterior branch which goes to the posterior vertebral muscles, and sends a small spinal branch through the corresponding intervertebral foramen to the medulla ...

  8. Innermost intercostal muscle - Wikipedia

    en.wikipedia.org/wiki/Innermost_intercostal_muscle

    It is present only in the middle of each intercostal space, and often not present higher up the rib cage. [3] It lies deep to the plane that contains the intercostal nerves and intercostal vessels, and the internal intercostal muscles. [3] [4] The diaphragm is continuous with the innermost intercostal muscle. [5]

  9. Internal thoracic artery - Wikipedia

    en.wikipedia.org/wiki/Internal_thoracic_artery

    In adults, the internal thoracic artery lies closest to the sternum at the first intercostal space. The gap between the artery and lateral border of the sternum increases when going downwards, up to 1.1 cm to 1.3 cm at the sixth intercostal space. In children, the gap ranges from 0.5 cm to 1.0 cm. [5]