Collected Works of Francis Sibson, M.D., Lond, Vol. 3 of 4 (Classic Reprint) - Softcover

Sibson, Francis

Softcover

ISBN 10: 1332951821 ISBN 13: 9781332951826

Verlag: Forgotten Books, 2016

Inhaltsangabe

Excerpt from Collected Works of Francis Sibson, M.D., Lond, Vol. 3 of 4

The general systolic movements of that part Of the left ventricle which lies to the outside of the right ventricle, are also from right to left, and from above downwards. There is, however, a singular diversity in the movements of the part in question; while the apex of the left ventricle moves for wards, upwards, and from right to left, a small portion Of that ventricle contiguous to the apex moves from left to right, dragging with it the contiguous portion Of the right ventricle, while the two auricular thirds of the ventricle go from right to left. The aorta, like the pulmonary artery, descends about a third Of an inch during the systole.

From this it is to be observed, that the whole of the anterior portion of the heart, and the great vessels, have a gliding or friction movement during both systole and diastole - that, during the, systole, the anterior walls of the heart move diagonally from below upwards, and from right to left, the horizontal movement of those portions Of the right auricle and ventricle near their junction, and of the auricular appendage, being by much the most exten sive - and that the aorta and pulmonary artery descend during systole, and ascend during diastole. In short, the various cavities in part exchange places during the systole and diastole during systole, the ventricles empty themselves, the auricles and the arteries become more full, and where they adjoin the ventricles, both the auricles and the arteries occupy a portion of space previously occupied by the ven tricles during the diastole, the ventricles regain their position, and the auricles and arteries go back to theirs.

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Details zur Ausgabe

• Verlag: Forgotten Books
• Erscheinungsdatum: 2016
• Sprache: Englisch
• ISBN 10: 1332951821
• ISBN 13: 9781332951826
• Einband: Taschenbuch
• Anzahl der Seiten: 430
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