Calcium ions serve as messengers, often in combination with the intracellular protein
A) calcitonin.
B) calcitriol.
C) calmodulin.
D) calcium-binding globulin.
E) calcitropin.
C
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The pulmonary veins carry ________ blood to the ________
A) deoxygenated; left atrium B) oxygenated; right lung C) deoxygenated; superior vena cava D) deoxygenated; right atrium E) oxygenated; left atrium
An EPP
a. occurs because of Na+ diffusing into a muscle fiber after ACh binds with a receptor on the muscle fiber b. is usually smaller in magnitude than an EPSP c. is terminated when Ca2+ inactivates acetylcholine d. has characteristics a and b e. has characteristics a and c
prognosis of giantism is usually poor
a. true b. false
A typical embryonic atrial defect in the heart leads to enlargement of the right side of the heart.
Indicate whether the statement is true or false.