Which statement best describes arteries? all carry oxygenated blood to the heart

all contain valves to prevent back flow of blood

all carry blood away from the heart

What part of the menstrual cycle is the femal most likely to get pregnant and why

Describe the effects and potential risks associated with pica. include lead poisoning in the discussion.

Discuss what constitutes physical monitoring of sterilization and why it is important to monitor the sterilization procedures in a dental office. include some specific examples of instrument processing techniques and why those techniques are particularly appropriate for that instrument and its uses.