Which of the following is involved in forming cerebrospinal fluid?
A. Cerebral aqueduct
B. Dural venous sinus
C. Choroid plexus
D. Central canal
Answer: C
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Which of the following waves of an ECG pattern is/are correctly described?
A. QRS complex-repolarization of ventricles B. T wave-depolarization of ventricles C. QRST complex-depolarization of ventricles D. P wave-depolarization of atria
Which of the following is not a function of the spleen?
A. It helps stabilize blood volume. B. It produces blood cells in the fetus. C. Its lymphocytes and macrophages monitor the blood for pathogens. D. It breaks down dead red blood cells and recycles useful components. E. It produces hormones that promote lymphocyte maturation.
Cerebrospinal fluid is returned to the blood by:
a. the dural sinus b. arachnoid granulations (villi) c. the choroid plexus d. the hypothalamus
Anti-angiogenic drugs are being used to decrease tumor growth. These drugs work by decreasing
A) cell division. B) cell communication. C) new blood vessel formation. D) focal calcification. E) vascular flow.