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(03.05 MC)Brominated flame retardants (BFRs) are used in electronics, sofas, mattresses, and other similar items to reduce flammability. Over time, BFRs can brush off the items they are part of, turn into dust, and contaminate other household items and food. Inside the body, BFRs can interfere with a child’s growth and development by suppressing a hormone produced by an endocrine gland in the neck. Based on this information, what would BFRs be classified as?

(02.02 MC)You are a doctor who examines the x-ray of a broken bone, which is healing. What should you look for to indicate that the break is almost completely healed?

(03.05 MC)A chemical signal that travels through the bloodstream is part of the ________ system, while a chemical signal released into a synapse by an axon is part of the ________ system.

(03.04 LC)Which statement correctly shows the path that nerve impulses travel?

(02.04 LC)Which type of muscle tissue makes up the thick middle layer of the heart?

(03.02 MC)Kerry fell off her bike and hit her head. She immediately tried to stand up but could not properly balance to stand upright. Which part of the brain was most likely injured?

(02.04 MC)What symptoms might be present if a connective tissue disease was adversely affecting the sarcolemma?

(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?

(01.04 MC)Where in the integumentary system are blood vessels found, and how do these vessels react when the body is cold?

(03.03 MC)Your body continues breathing normally while you are sleeping due to the function of which division of the nervous system?