Rasheed accidentally bumped his leg on a desk. What is the first thing that happened within Rasheed’s nervous system? a. He yelled, “Ow!”

b. The nerves in his leg sensed pain.

c. The leg nerves sent a message to the brain.

d. The brain sent a message to the integumentary system.

What is a common risk associated with tobacco?

Which statement best illustrates that problem solving can create new medical devices? robert hooke was in charge of verifying the information that was sent to the royal academy. william harvey did experiments with apes to learn about the circulatory system. the stethoscope was invented because the physician did not want to put his head on women's chests to listen to their heart and lungs. anton van leeuwenhoek was a very curious man and looked at just about everything under this microscope.

Which of the following methods had the highest risk of transmitting hiv? a) oral sex b) sharing needles c) sweat d) preseminal fluid