period
The longer the vessel is the more friction it applies on the passing blood, the less the blood flow is.
It's normal. The uterus lining is shredding so you bleed fresh blood which has to clot.
Yes. There is no longer a waiting period between when you get any influenza shot, including H1N1, and when you can give blood.
If you're ill, you should not donate blood. Your body is fighting something and blood donation is an added strain on your body. Besides the possibility of passing whatever you have to the recipient, it will take your body longer to return your health.
Deworming should not cause bleeding-period. If your kitten is passing blood, you need to take him to the veterinarian for an exam.
your blood turns brown as it mixes with oxygen, the longer you keep it sitting there (in your pad for example) the darker it gets. nothing abnormal about it!
a period is blood
The fluid can be watery or have some clots, passing some mucus is normal but it should mainly be blood that was built up on the uterus.
It's common for menstrual blood to change colors during your period. Red blood at the start of your period is fresh blood, while brown blood towards the end is older blood that takes longer to exit the body. This is a normal part of the menstrual cycle and usually not a cause for concern.
the atrioventricular (AV) prevents blood from passing back into the left atrium.
After giving birth, locia is present from 2-5 weeks. If locia stopped and restarted and you are passing clots it is best to be seen by a physician.