22. as jose was running down the road, he tripped and his left ankle
twisted violently to the side. when he picked himself up, he
was unable to put any weight on that ankle. the diagnosis was
severe dislocation and sprains of the left ankle. the orthopedic
surgeon stated that she would perform a closed reduction of the
dislocation and attempt ligament repair by using arthroscopy.
(b) what does its
stability depend on? (c) what is a closed reduction? (d) why is
ligament repair necessary? (e) what does arthroscopy entail?
(f) how will the use of this procedure minimize jose's
recuperation time (and suffering)?

Which best explains how this maneuver unblock a person's airway?

Bisphenol a (often called bpa) is a chemical found in products that people use every day, from water bottles to food containers to children's toys. unfortunately, bpa leaches out of its many products and makes its way into our bodies. what are the health effects of bpa exposure? ongoing research is finding that elevated exposure to bpa can affect a wide variety of developmental and physiological processes, but one of the first studies of bpa's health effects came about because of a simple mistake in the lab. at a laboratory at case western reserve university in 1998, geneticist patricia hunt was making a routine check of her female lab mice. as she extracted and examined developing eggs from the ovaries, she began to wonder what had gone wrong. she noticed that many of the eggs showed problems with their chromosomes, and some had irregular amounts of genetic material, which can lead to miscarriages and birth defects in mammals. she learned that a lab assistant had mistakenly washed the plastic mouse cages and water bottles with a harsh soap, releasing bpa from the plastic. knowing that bpa is an endocrine disruptor, a chemical that can enter organisms and mimic hormones, hunt set out to discover whether it had adversely affected her mice.

Are the layers of rock above and below the coal older or younger?