The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.
Did you know?
The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.
Did you know?
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
Did you know?
Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.
Theory of Mind
Worldviews Theory
Trichromatic Theory of Color Vision
The Triangular Theory of Love
Contrast of ventilation and external and internal respiration.