The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.
Did you know?
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
Did you know?
Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.
Did you know?
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
(a) With few ticks, moose retain a brown coat; (b) at high numbers of ticks, moose self-groom, destr
Spectrum of a High-Redshift Quasar
Dose-response curve with threshold
J or U dose-response curve
The Stress Response
Frequency of X-Linked Recessive Traits in Males and Females