If a doctor wanted to find out the number of white blood cells in a patient’s body, he or she would order a(n)

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.

Building muscle has which of the following effects? it increases the metabolic rate. it relieves pressure on the joints. it slows weight loss considerably.

Which of the following depicts the correct path of oxygen from the air to the lungs? a.nose/mouth, epiglottis, larynx, pharynx trachea b. nose/mouth, trachea pharynx, epiglottis, larynx, c. nose/mouth, pharynx, epiglottis, larynx, trachea d. nose/mouth, larynx, pharynx, trachea, epiglottis