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 [...]
In this article we will discuss about:- 1. Features of Radial Pulse 2. Recording of Radial Pulse 3. Significance 4. Varieties. Features of Radial Pulse: While examining pulse the following features are to be noted: i. Rate means the frequency of pulse per minute. Normally, it corresponds to heart rate. Increased pulse rate is called tachycardia and diminished pulse rate [...]