The least amount of energy that produces adequate stimulation of a receptor is the ________.
A. law of specific nerve energies
B. all-or-none law
C. sensory adaptation
D. generator potential
Answer: A
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In the anatomic position, the palms of the hands are facing ___________________.
Fill in the blank(s) with the appropriate word(s).
In general terms, what sort of distance do graded potentials die out over?
a. graded distances b. active distances c. long distances d. medium distances e. short distances
The link between a first messenger and a second messenger in a cell that responds to peptide hormones is usually
A) cAMP. B) cGMP. C) ATP. D) a G protein. E) calcium ion levels.
Systemic blood vessels transport blood
A. from the left ventricle through the body to the left atrium. B. from the left ventricle through the body to the right atrium. C. from the right ventricle through the body to the left atrium. D. from the right ventricle through the body to the right atrium. E. from the left ventricle to the lungs.