Lumbar hernias occur through defects in the lumbar muscles or the posterior fascia, below the 12th rib. Patients with lumbar hernias can present with a variety of symptoms, including a back pain, bowel obstruction (if contents contain bowel), or urinary obstruction (if contents are kidney / ureter).
Late adulthood is the time of life after age 65. During this time, people go through many changes in their physical appearance, including an increase in wrinkles due to less elastic collagen, a decrease in muscle mass, and a loss of height.
Emerging adulthood is the sole age period where there is nothing that is demographically consistent. At this time, adolescents in the United States up to age 18, over 95% live at home with at least one parent, 98% are not married, under 10% have become parents, and more than 95% attend school.