The most common extracellular cation is ________.
Fill in the blank with correct word.
sodium or ?Na or ?Na+
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Properly cooking food is the best defense for prevention of E. coli
Indicate whether the statement is true or false
Which shoulder muscles can cause more than one type of movement of the arm?
A. Deltoid B. Latissimus dorsi C. Rhomboideus major D. Pectoralis major E. Supraspinatus
Which is not seen on axial images below the level of the right atrium?
A. IVC B. esophagus C. descending aorta D. SVC
Which of the following is not a mechanism for the development of autoimmune disorders?
A) exposure of previously "hidden" self-antigens to the adaptive immune system B) a second exposure to an allergen C) mutation followed by the appearance of membrane proteins not previously present D) cross-reaction of antibodies formed against foreign antigens with self-antigens