A patient is experiencing joint inflammation and pain. They undergo an arthrocentesis and their physician discovers cloudy, pus-filled synovial fluid. Which of these conditions is most likely occurring?
A. Osteoarthritis
B. Gout
C. A sprain
D. Bacterial joint infection
Answer: D
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The only electrolyte that exerts significant osmotic pressure is the ______.
A. chloride ion B. potassium ion C. calcium ion D. sodium ion
The number of taste buds decreases by about ________ as the body reaches the geriatric stage.
A. 20% B. 50% C. 30% D. 40%
Which of the following accounts for the heart sounds "lubb-dubb"?
A) closing of the semilunar and atrioventricular valves, respectively B) opening of the semilunar and atrioventricular valves, respectively C) closing of the atrioventricular and semilunar valves, respectively D) opening of the atrioventricular and semilunar valves, respectively
Structure R is the
A) lacrimal sac.
B) iris.
C) ciliary zonule.
D) ciliary muscle.
E) ciliary body.