Therapeutics of the circulation / by Sir Lauder Brunton.

  • Lauder Brunton
Date:
1914
Catalogue details

Licence: Public Domain Mark

Credit: Therapeutics of the circulation / by Sir Lauder Brunton. Source: Wellcome Collection.

    54/568 page 26
    in turn drives the blood onwards into its corre¬ sponding artery, the pulmonary on the right, and the aorta on the left. This rhythmical action continues for some time in a heart after its removal from the body, and if artificial circula¬ tion be kept up in the coronary arteries the excised heart may continue to beat for hours or even days. The movements may be recorded in writing on a revolving cylinder by levers laid on the auricles and ventricle,1 or connected with them by hooks.2 Heart of the Frog.—The heart of the frog being simpler in structure than the mammalian heart, and more easily studied, has been used to a great extent for the purpose of discovering the causation of the cardiac movements. It Left auricle and pulmonary veins. Aortic bulb. Bidder’s ganglia. Sup. vense cavse and vagi nerves. Venous sinus and Remak’s ganglion. Inferior vena cava. Ventricle. Fig. 4.—Diagram of the frog’s heart. consists of the venous sinus, two auricles, one ventricle, and the aortic bulb (F >g- 4)- I he vagi nerves pass to the junction of the venous sinus and auricle, and here form a plexus or ganglion, known as Remak’s.3 From this two nerves pass down the auricular septum to the base of the ventricle, where they end in two ganglia, known as Bidder’s ganglia.4 There are also ganglionic cells in the septum
    No text description is available for this image
    No text description is available for this image
    No text description is available for this image