1: inferior vena cava
2: aorta
3: superior vena cava
4: pulmonary vein
It could be anything. It could be anorexic, or bulimic, or just underweight.
Answer:
Absence of a woman's monthly menstrual period is called amenorrhea. Primary amenorrhea is when a girl has not yet started her monthly periods, and she: Has gone through other normal changes that occur during puberty.
Listerine is named after Joseph Lister, for his pioneering work in the field of sepsis and antiseptic surgery. He was a British surgeon and promoted the used of sterile surgical instruments used in surgery as well as clearance of wounds. He is recognized as the Father of modern surgery.
