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  2. Coronary sulcus - Wikipedia

    en.wikipedia.org/wiki/Coronary_sulcus

    The right coronary sulcus begins anteriorly and superiorly on the sternocostal surface of the heart. Its position is marked by the location of the right coronary artery , and small cardiac vein . The right coronary sulcus separates the right atrium and its atrial appendage from the right ventricle inferiorly.

  3. Anatomical terms of location - Wikipedia

    en.wikipedia.org/wiki/Anatomical_terms_of_location

    The ventral (from Latin venter 'belly') surface refers to the front, or lower side, of an organism. [38] For example, in a fish, the pectoral fins are dorsal to the anal fin, but ventral to the dorsal fin. The terms are used in other contexts; for example dorsal and ventral gun turrets on a bomber aircraft.

  4. Anterior interventricular sulcus - Wikipedia

    en.wikipedia.org/wiki/Anterior_interventricular...

    It is situated on the sternocostal surface of the heart, [1] [2] close to the left margin of the heart. [2] It extends between the coronary sulcus, and the apex of the heart; [1] upon reaching the diaphragmatic surface of the heart, it ends at the notch of cardiac apex. [3]

  5. Anatomical terminology - Wikipedia

    en.wikipedia.org/wiki/Anatomical_terminology

    Anatomical terminology is a specialized system of terms used by anatomists, zoologists, and health professionals, such as doctors, surgeons, and pharmacists, to describe the structures and functions of the body. This terminology incorporates a range of unique terms, prefixes, and suffixes derived primarily from Ancient Greek and Latin.

  6. Anatomy of the human heart - Wikipedia

    en.wikipedia.org/wiki/Anatomy_of_the_human_heart

    The heart is a muscular organ situated in the mediastinum.It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the pulmonary artery, and the left ...

  7. Anatomical plane - Wikipedia

    en.wikipedia.org/wiki/Anatomical_plane

    The mid-clavicular line, a line running vertically down the surface of the body passing through the midpoint of the clavicle. In addition, reference may be made to structures at specific levels of the spine (e.g. the 4th cervical vertebra , abbreviated "C4"), or the rib cage (e.g., the 5th intercostal space ).

  8. Ventricle (heart) - Wikipedia

    en.wikipedia.org/wiki/Ventricle_(heart)

    The left ventricle is longer and more conical in shape than the right, and on transverse section its concavity presents an oval or nearly circular outline. It forms a small part of the sternocostal surface and a considerable part of the diaphragmatic surface of the heart; it also forms the apex of the heart.

  9. Axial twist theory - Wikipedia

    en.wikipedia.org/wiki/Axial_twist_theory

    Accordingly, the pressure decreases as a body part is less associated with the body surface (less sexual selection) and the locomotor system (less functional selection). [5] Consequently, the axial twist theory predicts that small, systematic asymmetries remain on the outside of the body and that these asymmetries are larger on the inside of ...