Atrial Septal Defect (ASD), Animation.

Atrial septal defect, or ASD, is a congenital heart defect in which blood flows abnormally between the two atria of the heart. Normally, the atria are separated by a wall called the interatrial septum. In ASD patients, this septum is defective allowing blood flow between the two chambers. During fetal development, when the interatrial septum…

Hypertension: The risk factors for premature death

Hypertension is a common condition that presents with elevation in either systolic or diastolic blood pressure, and represents a major risk factor for morbidity and mortality. It is one of the major causes for premature death on a global basis and in many countries is the most common reason for physician visits. Treatment Thresholds Increased…

Baroreflex Regulation of Blood Pressure, Animation.

Baroreflex, or baroreceptor reflex, is one of the mechanisms the body uses to maintain stable blood pressure levels or homeostasis. Baroreflex is a rapid negative feedback loop in which an elevated blood pressure causes heart rate and blood pressure to decrease. Reversely, a decrease in blood pressure leads to an increased heart rate, returning blood…