(03.03 HC)A pregnant person opts to have an epidural during…

(03.03 HC)A pregnant person opts to have an epidural during labor to prevent intense pain. An epidural is a procedure that injects numbing medication directly into the space around the spinal nerves in a specific location in the spine, usually the lumbar region for childbirth. People with an epidural are still able to sit up, stay awake, and talk to others, but they cannot walk or feel anything from the waist down. Thinking about the parts and functions of the nervous system, which of the following is the best explanation of how the epidural works?

(03.03 HC)Rex pulled a muscle in his neck, and it was causin…

(03.03 HC)Rex pulled a muscle in his neck, and it was causing a lot of pain. He rubbed a topical pain relief cream on his skin in the area where he was feeling the pain. After a few moments, the pain Rex was experiencing began to decrease, and he noticed the minty-smelling cream made his skin feel cool. Thinking about the parts and functions of the nervous system, which of the following is the best explanation of how pain-relieving cream works?

(03.05 MC)Bisphenol-A (BPA) is a compound found in many plas…

(03.05 MC)Bisphenol-A (BPA) is a compound found in many plastics. Under certain circumstances, BPA leaches out of the plastic and enters the body through direct contact with food or drink. Inside the body, BPA imitates a hormone that stimulates the growth of the female secondary sex characteristics. Based on this information, what would BPA be classified as?