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True/false correct the false statement to receive full credit.    Hyperkalemia can lead to an increase in HR and contractility.

what is the function of ductus arteriosus in fetal circulation? Why such a structure is not necessary for babies after birth?

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 __________________