The blood supply to the spinal cord involves a complex system of blood vessels. The main blood vessels are the anterior spinal artery (at the front of the spinal cord) and the posterior spinal artery (at the back). Spinal strokes are most common in the anterior spinal artery. Most spinal strokes are caused by blockages (usually blood clots) in the blood supply. These are called ischaemic spinal strokes.
There's no way to know exactly when you'll get your first period. One day, you'll begin to bleed from your vagina, and that's your period. It means that your body is healthy and normal. Most girls have their first period when they're between 9 and 15 years old.Your period may start around the time it started for other people in your family, like your mom or sisters.If you don't get your period by the time you're 15, you may want to talk with a doctor or nurse.here's no way to know exactly when you'll get your first period. One day, you'll begin to bleed from your vagina, and that's your period. It means that your body is healthy and normal. Most girls have their first period when they're between 9 and 15 years old.
About 2 to 2Â½ years after a girl's breasts begin to develop, she usually gets her first menstrual period. About 6 months or so before getting her first period, a girl might notice an increased amount of clear vaginal discharge. This discharge is common. There's no need for a girl to worry about discharge unless it has a strong odor or causes itchiness. When a girl first gets her period, doctors call it menarche .