Aperson who is 15 years old has a target heart rate range of a. 123–164. b. 132–176. c. 114–152. d. 99–132.

True or false. mucous membranes secrete mucus that traps pathogens.

Check all that occur during ventricular systole. a. the av valves open to allow blood to enter the ventricles from the atria. b. the av valves open to allow blood to enter the ventricles from the atria. c. the semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles. d. the semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles. e. the semilunar valves open to allow blood to flow into the large arteries. f. the semilunar valves open to allow blood to flow into the large arteries. g. the av valves close to prevent backflow of blood into the atria.

Which of the following is an allied health position in which a person often works from home and has no face-to-face contact with the patient?