The most common disorder of the blood in the older adult is anemia.
A. True
B. False
A. True
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Which of the following is a condition resulting from a hereditary defect in elastin fibers characterized by hyperextensible joints, tall stature, long limbs, and vision problems?
A. Osteogenesis imperfecta B. Marfan syndrome C. Havers syndrome D. Scurvy E. Klinefelter syndrome
The larynx is supported by nine pieces of cartilage. Which cartilages occur in pairs?
A. Thyroid and corniculate B. Corniculate and cuneiform C. Corniculate, cuneiform, and arytenoid D. Cricoid, corniculate, and arytenoid E. Arytenoid and cuneiform
A person works an office job that requires them to be in a sitting position for 10 hours a day. They go home and sit until they go to bed. This person never exercises and rarely gets up to move around after being seated. Their joints begin to constantly feel stiff and painful. On a physiological level, what has happened to cause these symptoms?
A. Disuse of the joint causes ossification of the fibrocartilage, creating arthritic joints. B. Lack of movement hinders blood from moving through the vessels of the synovial membrane, which starves the ligaments of nutrients and causes them to lose elasticity. C. Being stuck in the same position for long periods of time causes the ligaments to physically decay, stiffening the joints. D. Lack of movement drives the synovial membranes to stop producing synovial fluid, which then causes friction to generate upon movement of the joints.
Which is NOT true regarding antibodies?
A. They are secreted by plasma cells. B. They protect against viruses by binding to them and presenting them to phagocytes. C. They protect against viruses by binding to them and neutralizing them. D. They activate complement. E. They are the main mediators of the innate immune response.