Which of the following is not true regarding rheumatoid arthritis?
A. It is associated with rheumatoid factor (an autoantibody).
B. It affects 85% of people older than 70.
C. It may lead to ankylosis.
D. The synovial membrane thickens.
E. The articular cartilage degenerates.
B. It affects 85% of people older than 70.
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Epithelial tissues have an attached (basal) border and a free (apical) border. This arrangement is known as
A. polarity. B. bilateral symmetry. C. lateral flexibility. D. proximal orientation. E. distal orientation.
The cultural code of machismo in the Latin American culture:
A. includes an emphasis on male virginity until marriage. B. mandates that the man be responsible for his family's well-being and honor. C. advocates males' sexual exclusivity within marriage. D. is no longer significant among the newer generation of Latinos.
Which of the following best describes the immune system?
A. The set of clearly defined organs that connect structurally to defend the body from pathogens B. The organ set that accumulates pathogens and kills them C. The diverse set of molecules and immune cells that are found in lymphoid tissue and fluids throughout the body D. The set of organs that provides antibodies
Which of the following is a nonsalt molecule that contributes to the hypertonicity of the interstitial fluid of the renal tubules?
A. Urea B. Xenobiotic molecule C. Protein D. Creatinine