Which one is not a cell of the immune system? [worth 20 points] a. t cells b. b cells c. white cells d. red blood cells

Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

What is the correct term for an area of rotating currents in an ocean? when ocean currents combine, they create an area of rotating currents called an