In this experiment, which part of the body showed the smallest 2-point threshold?
A. Palm of the hand
B. The back of the neck
C. The leg
D. The forearm
E. Fingertip
Answer: E
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What is the function of histamine?
A. It is a chemical that kills bacteria. B. It is an anticoagulant that inhibits blood clotting. C. It is a clotting factor. D. It is a vasodilator that speeds blood flow to injured tissues. E. It is a signal to B cells to produce antibodies.
Basophils release ________, a vasodilator that increases blood flow to damaged tissues.
Fill in the blank(s) with the appropriate word(s).
In order to get energy (ATP) from food molecules in the final stage of respiration, humans require ________.
A. oxygen B. ribose C. carbon dioxide D. sodium
Determine the type of muscle contraction needed to lower a heavy bowling ball down by your side so you can roll it down the lane
What will be an ideal response?