After an action potential is propagated to the axon terminal and calcium channels are opened, which of the following happens next?
a. Sodium moves into the muscle cell.
b. Potassium moves out of the muscle cell.
c. Acetylcholine is released from the neuron.
d. Calcium is released onto the muscle fiber membrane.
C
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When does an ex-smoker’s risk for cancer approach that of a lifetime nonsmoker?
a. 10 years b. 15 years c. 20 years d. 25 years
In the chain of infection, the ________, or pathogen, is a microorganism that is capable of causing disease or illness when it gets on or inside of a host or person.
Fill in the blank(s) with the appropriate word(s).
Affluent individuals face more stress-related illnesses than disadvantaged ones.
Answer the following statement true (T) or false (F)
To help ensure success with a behavior change program, you should
A. set a general goal, such as "lose weight." B. develop a reward system. C. avoid setting a time frame. D. reward yourself only when you reach your goal.