Lana is studying the lumbar, or lower back, area of the body. she is trying to learn the names and locations of the organs in the area. lana is studying the of physiology, an organ system gross anatomy, an anatomical region superficial anatomy, an anatomical region body cavity, an organ system

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.