The serous fluid within the pericardial cavity works to
A. slow the heart rate.
B. lubricate membranes of the pericardium.
C. equalize the pressure in the great vessels.
D. eliminate blood pressure spikes.
E. All of the choices are correct.
Answer: B
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With age,
A. levels of GH decrease but of ADH increase. B. levels of GH increase but of ADH decrease. C. levels of GH and ADH both increase. D. levels of GH and ADH both decrease.
If a substance has a plasma concentration of 150 mg/ml and a urine concentration of 1.7 mg/ml, and the urine flow rate is 1.3 ml/min, what is the clearance of this substance?
a. 15 ml/min b. 196 ml/min c. 0.4 ml/min d. Cannot be determined with these data e. None of the above
Although some albumin may be present in the filtrate of a person with normal kidney function, it would not likely be found in that person's urine
Indicate whether the statement is true or false
What type of joint allows motion around only one axis?
A) multiaxial (triaxial) B) nonaxial C) biaxial D) uniaxial