Which of the following structures is NOT involved in the regulation of plasma calcium?
A) skeletal muscle
B) kidneys
C) gastrointestinal tract
D) skin
E) bone
Answer: A) skeletal muscle
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A person who makes anti-B antibodies cannot safely accept any blood types in which erythrocytes display B antigens
Indicate whether the statement is true or false
If you receive an immunization for hepatitis B and produce antibodies against the hepatitis B virus, you have developed what type of adaptive immunity?
A. Passive natural immunity B. Passive artificial immunity C. Active natural immunity D. Active artificial immunity E. Active passive immunity
Enting of the skin under the jaw often occurs when airway devices are inadvertently inserted into the:
A) pyriform fossae. B) vallecular space. C) laryngopharynx. D) hypopharyngeal space.
Action potentials at a chemical synapse
A. travel from postsynaptic membrane to presynaptic terminal. B. stop at the presynaptic terminal and are blocked on the postsynaptic membrane. C. travel from presynaptic terminal to postsynaptic membrane. D. travel from presynaptic terminal to presynaptic membrane. E. travel back and forth from presynaptic terminal to postsynaptic membrane.