Antigens that trigger allergic reactions are called
A) interferons.
B) microbes.
C) pyrogens.
D) allergens.
E) agglutinins.
D
Anatomy & Physiology
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Which of the following is not a part of the cardiovascular system?
a. heart b. blood vessels c. lymph vessels d. all of the above are part of the cardiovascular system
Anatomy & Physiology
________ cells constrict the afferent arterioles and secrete renin.
Fill in the blank(s) with the appropriate word(s).
Anatomy & Physiology
Growth of the functional layer and prevention of menstruation during pregnancy are brought about by secretion of
A. human placental lactogen. B. human chorionic thyrotropin. C. progesterone. D. cortisol. E. relaxin.
Anatomy & Physiology
Which measurement would be most logical to describe the size of a cell?
A. 1–2 mm B. 10 um C. 2 cm D. 5–10 nm E. 1 dm
Anatomy & Physiology