Autoimmune diseases are disorders in which the immune system fails to distinguish __________ from foreign ones.
A. self-immunoglobulins
B. self-antibodies
C. self-antigens
D. self-interleukins
E. self-complement proteins
C. self-antigens
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The production of sperm and egg cells is called __________.
Fill in the blank(s) with the appropriate word(s).
A joint with a cavity filled with fluid is called a ________ joint.
Fill in the blank(s) with the appropriate word(s).
A 42-year-old obese woman with seven children is brought to a local hospital by her daughter. Physical examination and her radi- ograph reveal that large gallstones have ulcer- ated through the posterior wall of the fundus of the gallbladder into the intestine. Which of the following parts of the intestine is most likely to initially contain gallstones?
(A) Cecum (B) Ascending colon (C) Transverse colon (D) Descending colon (E) Sigmoid colon
If NAD becomes reduced it is a(n) ________.
A. reducing agent B. allosteric inhibitor C. oxidizing agent D. zymogen