Ned Weeks
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4 days ago · The sounds of a normal heartbeat are known as "lubb" and "dupp" and are caused by blood pushing on the valves of the heart. The "lubb" sound comes first in the heartbeat and is the longer of the two heart sounds.
3 days ago · The heart is a muscular pumping organ located medial to the lungs along the body's midline in the thoracic region. The bottom tip of the heart, known as its apex, is turned to the left, so that about 2/3 of the heart is located on the body's left side with the other 1/3 on right.
2 days ago · In a normal heart, the heart rate is the rate at which the sinoatrial node depolarizes since it is the source of depolarization of the heart. Heart rate, like other vital signs such as blood pressure and respiratory rate, change with age.
A blood pressure reading provides two numbers. The top number measures systolic pressure, which is the amount of force your blood is pushing on your arterial walls while your heart is beating.
1 day ago · Pearson’s correlation coefficient (CC) was used for within-subject and between-subject comparisons. Age of normal subjects averaged 49 ± 14 years, 6/22 were male, and no structural/electrical heart disease was present. The average activation time was longer in LV than in RV, but not different by sex or age.
2 days ago · Cardiology is concerned with the normal functionality of the heart and the deviation from a healthy heart. Many disorders involve the heart itself, but some are outside of the heart and in the vascular system. Collectively, the two are jointly termed the cardiovascular system, and diseases of one part tend to affect the other.
5 days ago · The ABCs of Heart Disease is a system for diagnosing cardiac disease in adults by asking certain questions in a set fashion, the answers to which are certain fundamental observations made from the frontal chest x-ray alone. The observations start with one that is widely used: The cardiothoracic ratio.
