Where do hydrophilic peptide hormones dissolve?
a. The blood
b. The cytosol
c. The extracellular fluid
d. The intracellular fluid
e. The intercellular matrix
a
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Norepinephrine acts on the heart by ________
A) causing threshold to be reached more quickly B) blocking the action of calcium C) causing a decrease in stroke volume D) decreasing heart contractility
The body system that provides support and protection as well as being a site of blood cell production (hemopoiesis) is the ____________ system.
A. skeletal ?B. muscular ?C. cardiovascular ?D. respiratory ?E. lymphatic
Which of the following is true about the uterine tubes?
A) The ampulla is a narrow constricted region. B) The infundibulum is the expanded region of the uterine tube. C) The isthmus is the normal site of fertilization. D) None of the listed responses is correct.
Collectively, the renal and respiratory systems comprise the chemical buffering system of the body.
Answer the following statement true (T) or false (F)