The third process of urine formation is ________, during which substances move out of the blood in the peritubular capillaries and into the renal tubules to be excreted in the urine.

Atrial fibrillation can be interpreted by noting:

A) PR intervals that vary from complex to complex. B) an irregularly irregular rhythm and absent P waves. C) a regularly irregular rhythm with abnormal P waves. D) the presence of wide QRS complexes and a rapid rate.

A lateral knee projection with accurate positioning demonstrates

1. superimposed femoral condyles. 2. the fibular head without tibial superimposition. 3. an open femorotibial joint space. 4. one fourth of the distal femur and proximal lower leg. a. 1 and 3 only b. 2 and 4 only c. 1, 3, and 4 only d. 1, 2, 3, and 4