A complete handbook for the sanitary troops of the U S army and navy . aterials tothe tissues and takes on a load of waste products, and the Iciiis whichreturn the impure blood to the right side of the heart; this is thesystemic circulation and requires about a half a minute for the en-tire trip; then there is a subsidiary system known as the pulmonarycirculation, whose arteries take the impure blood from the right sideof the heart to the lungs, in the capillaries of which it is purified,losing carbonic acid and waste matters, taking on a load of oxygen,and then passing through the pulmonary v
A complete handbook for the sanitary troops of the U S army and navy . aterials tothe tissues and takes on a load of waste products, and the Iciiis whichreturn the impure blood to the right side of the heart; this is thesystemic circulation and requires about a half a minute for the en-tire trip; then there is a subsidiary system known as the pulmonarycirculation, whose arteries take the impure blood from the right sideof the heart to the lungs, in the capillaries of which it is purified,losing carbonic acid and waste matters, taking on a load of oxygen,and then passing through the pulmonary veins to the left side of theheart for another trip through the systemic circulation (Fig. 34). THE BLOOD AXl) THE CIRCULATORY SYSTEM 73 The licart is a conical hollow muscle, situated between the lungsand behind the sternum and enclosed in a tibrous sack, the pericar-dium (Fig. 35). It is about the size of a closed fist, its averageweight being three-fourth^ of a pound. The apex is found betweenthe fifth and sixth ribs, inside of the nipple line. It is divided. Fig. 35.— The Thoracic Organs, a. Right lung divided into three lobes, and b. leftlung into two lobes, their anterior margins thrown back to expose the deeper parts;c, trachea, with its cartilaginous rings; d, right bronchial tube; e, right auricle, receivingfrom above, /, the superior vena cava, which is formed by the junction of g, g, the rightand left innominate veins, and each of these by the confluence of h, h, i, i, the jugularand subclavian of its own side; /, the right ventricle, giving issue to k, the pulmonaryartery, which divides into two branches, that for the right lung passing behind the othergreat vessels; /, /, /, /, pulmonary veins, bringing oxygenated blood to n), the left auricle;•I, the left ventricle, from which the blood is carried to the organs and tissues by o, theaorta; p, p, q, q, carotid and subclavian arteries, given off from the arch of the aorta. by a vertical partition into two la
Size: 1602px × 1559px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectfirstaidinillnessand
