|
|
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.
Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Did you know?
Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.
Did you know?
Everyone has one nostril that is larger than the other.
![Proper placement and monitoring of an automatic blood pressure cuff will reduce the risk of injury o](https://biology-forums.com/gallery/47/medium_2137_18_05_12_5_47_53.jpeg)
![Diabetes mellitus. The metabolic disease diabetes mellitus, with symptoms of polydipsia, polyuria, a](https://biology-forums.com/gallery/47/medium_14755_14_10_12_6_35_06_93842397.jpeg)
![Cardiac catheterization. Insertion of a tube called a catheter through a blood vessel. In this examp](https://biology-forums.com/gallery/47/medium_14755_11_11_12_7_14_27_100261340.jpeg)
![Return of oxygenated blood to the heart and entry into the aorta (red = oxygenated blood, blue = ...](https://biology-forums.com/gallery/30/medium_548020_08_06_17_5_10_12_30467634.jpeg)