Within lymph nodes, fixed macrophages and dendritic cells remove at least ________ percent of antigens arriving in lymph.
A) 10
B) 25
C) 50
D) 80
E) 99
D) 80
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The supraspinatus fossa is a depression on the posterior surface of the scapula.
Answer the following statement true (T) or false (F)
What are the eyes doing when the desynchronization of the alpha rhythm occurs?
A) The pupils are unevenly dilating. B) The eyes begin to focus on two different objects. C) The eyes are opening. D) The eyes are closing.
Procedural memory is stored primarily in the
A. hippocampus and amygdala. B. central sulcus and Wernicke's area. C. cerebellum and premotor area of cerebral cortex. D. temporal lobe and frontal lobe. E. pons and midbrain.
Which segment of the renal tubule acts as a countercurrent multiplier?
a) collecting duct b) nephron loop c) convoluted tubule