All of the following are functions of the respiratory system EXCEPT:
A. gas exchange between the blood and air
B. regulation of blood pH by changing blood carbon dioxide levels
C. provides acquired immunity that prevents microorganisms from entering the body
D. air movement past the vocal cord makes sound and speech possible
E. provides innate immunity
Ans: C. provides acquired immunity that prevents microorganisms from entering the body
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Answer the following statements true (T) or false (F)
1. When blood serum enters a lymph node it is called lymph. 2. It is easier for substances to move into a lymph node than into a blood capillary. 3. Lymph does not circulate through the lymph system the same way blood circulates through the circulatory system. 4. Thymosins are hormones released by the thymus gland, which influence the development of B lymphocytes. 5. The spleen can hold about 100 mL of blood.
After being hit by a car, the X-ray showed that Buster had a fracture of his ________________ (structure of the hip)
Fill in the blank(s) with correct word
Which of the following descriptions best matches the term stereocilia?
A) move up and down when the stapes moves back and forth B) transmit movement of the tympanic membrane to the inner ear C) bending these produces receptor potential in hair cells D) tiny weights necessary for the static sense of equilibrium E) seal the oval window
Which vessel carries blood away from the right ventricle?
A. Brachiocephalic artery B. Superior vena cava C. Pulmonary vein D. Aorta E. Pulmonary trunk