In this article we will discuss about the anatomy of human heart with the help of suitable diagrams. The human heart is roughly heart-shaped structure and rests obliquely in the thoracic cavity (Fig. 7.3). The anterior surface of the human heart faces the sternum, the posterior surface—the base of the cone faces the vertebral column and the inferior or diaphragmatic [...]
The regulation of the heart is effected through the afferent (centripetal) and efferent (centrifugal) nerves of the heart (Fig. 7.79). The afferent nerves are: i. From the heart through the vagus nerve and from the aortic arch, the aortic nerve. ii. From the heart through the inferior cervical and first four thoracic ganglia and first four thoracic nerve roots into [...]
In this article we will discuss about the pressure and volume changes in the human heart and blood vessels with the help of suitable diagram. 1. Pressure Changes in the Human Heart and Blood Vessels: In Animals—Optical Method of Wiggers: A vertical glass tube filled with an anticoagulant solution is used as a cannula. One end of it is introduced [...]