When an antigen triggers an immune response, it usually activates ________ first.
A) mast cells
B) plasma cells
C) B cells
D) T cells
E) NK cells
D) T cells
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If you are looking at the back of your hand and bend your wrist backward to admire a new ring, which of the following actions are you performing?
A. Dorsiflexing your hand B. Hyperextending your wrist C. Extending your wrist D. Flexing your wrist E. Adducting your wrist
Which organ system removes carbon dioxide from the bloodstream?
A) cardiovascular B) lymphatic C) respiratory D) digestive E) endocrine
What is the Latin term for "lip?"
A. Labium B. Oris C. Buccal D. Mental
Parasympathetic stimulation of the __________ contractile cells shortens the __________ phase of the action potential by reducing the slow inward current carried by Ca2+
Fill in the blank(s) with correct word