. A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine . Fi<i. 2SJ.— Lungs, anterior view (Sappey). 1, upper lobe of left lung; 2, lower lobe; ; 4, notch corresponding to apex of heart; 5. pericardium; (i. upper lobe ofright lung; 7, middle lobe; 8, lower lobe; 9. fissure: 10, fissure; 11, diaphragm;12. anterior mediastinum; 13. thyroid gland; 14. middle cervical aponeurosis; of attachment of mediastinum to pericardium; 1G, 10, seventh ribs; 17, muscles; 18. linea alba. tention to the physiological aspe
. A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine . Fi<i. 2SJ.— Lungs, anterior view (Sappey). 1, upper lobe of left lung; 2, lower lobe; ; 4, notch corresponding to apex of heart; 5. pericardium; (i. upper lobe ofright lung; 7, middle lobe; 8, lower lobe; 9. fissure: 10, fissure; 11, diaphragm;12. anterior mediastinum; 13. thyroid gland; 14. middle cervical aponeurosis; of attachment of mediastinum to pericardium; 1G, 10, seventh ribs; 17, muscles; 18. linea alba. tention to the physiological aspects of some points in theirstructure. The lungs represent a membranous expansion of 368 COMPARATIVE PHYSIOLOGY. great extent, lined with flattened cells and supporting innu-merable capillary blood-vessels. The air is admitted to the com-. Fig. 290.—Bronchia and lungs, posterior view (Sappey). 1, 1, summit of lungs; 2,2,base of lungs; 3, trachea; 4, right bronchus; 5, division to upper lobe of lung; 6,division to Tower lobe; 7, left bronchus; 8, division to upper lobe; 9, division tolower lobe; 10, left branch of pulmonary artery; 11, right branch; 12, left auricleof heart; 13, left superior pulmonary vein; 14, left inferior pulmonary vein; 15,right superior pulmonary vein; 16, right inferior pulmonary vein; 17, inferior venacava; 18, left ventricle of heart; 19, right ventricle. plicated foldings of this membrane by tubes which remain,throughout the greater part of their extent, open, being com-posed of cartilaginous rings, completed by soft tissues, of whichplain muscle-cells form an important part, serving to main-tain a tonic resistance against pulmonary and bronchial press-ure, as well as serving to aid in the act of coughing, etc.,so important in expelling foreign bodies or preventing theiringress. The bronchial
Size: 1647px × 1517px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1890
