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Extra credit question (1 pt) ____________ are vessels that empty into individual lymph node.

The best location to hear aortic valve sound is the superior right side of the thoracic cavity.

True/ false  correct the false statement    Internal respiration relies on pressure differences to exchange gases between lungs and blood vessels.

Extra credit question (1 pt) The largest lymphatic vessel that collects lymph from the right leg

Cytotoxic B cells are capable of directly attacking and killing other infected cells 

True/false question provide your reasoning for the chosen answer  Vasoconstriction is the action to resolve high ventilation and high perfusion. 

Explain the step-by-step process of T-cells from production to creating a primary and secondary immune response. (To receive full credit, write in bulletin format and use numbers to separate each step)   

Vaccines are an effective tool to fight off bacterial and viral infection because __________________

a) Explain in your own words what happens to the oxygen/Hb dissociation curve when blood pH is at 7.47? Justify the change in the graph b) Would the change observed in the above scenario be similar to the curve produced because of higher than optimal body temperature? Explain your answer in terms of Hb affinity and the body’s need for oxygen

Which of the following statement is (are) correct?