Which of the following is not an anatomical component of a synovial joint?
A. Synovial membrane
B. Articular cartilage
C. Fibrous capsule
D. Interosseous membrane
E. Joint cavity
Answer: D
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Which does not contribute to the pelvic brim?
A. Arcuate line B. Sacral promontory C. Pubic crest D. Pectineal line E. Gluteal line
All of the following are true of the primary response of humoral immunity except that
A) it depends on antigen triggering the appropriate B cell. B) it requires B cell differentiation into plasma cells. C) it depends on memory B cells. D) circulating antibodies undergo a gradual, sustained rise. E) it peaks 1 to 2 weeks after the initial exposure.
Match from the following list.
1. The structures that serve as the attachment site for the thin filaments and mark the boundaries for one sarcomere. 2. The letter assigned to this structure stands for the German word for middle; it is the attachment site for the thick filaments. 3. The lightest color bands of the sarcomere, comprised only of thin filaments. 4. The band with the most overlap between thick and thin filaments, which unevenly scatters light leading to its' dark appearance.
Active hyperemia refers to
a. arteriolar dilation in response to local chemical changes that accompany increased metabolic activity of the tissue b. local arteriolar mechanisms that are aimed at keeping tissue blood flow fairly constant in spite of wide deviations in mean arterial driving pressure c. the increase in blood flow to a tissue that occurs after removal of an occlusion of its blood supply d. maintaining adequate mean arterial pressure to drive blood forward into a tissue e. none of the above