A muscle cell's twitch last longer than the cell's refractory period
Indicate whether the statement is true or false
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Which of the following is a notable feature of leukemia?
a. crescent-shaped erythrocytes b. absence of certain blood clotting factors c. yellowing of the eyes and skin d. excessive numbers of white blood cells
Which statement is NOT true regarding kidney function?
a. The renal tubule can modify tubular filtrate by reabsorption and secretion b. The kidneys filter about 180 liters plasma/day c. Each minute, about 120 ml filtrate enters the glomerular capsule d. Composition of the filtrate cannot be modified as it passes through the collecting tubules
Platelets play a key role in ________, but if they are not used they are broken down after about ________ days.
A. hematopoiesis; 9 B. hematopoiesis; 120 C. hemostasis; 9 D. hemostasis; 120
Cardiac muscle cells obtain energy almost exclusively through
A) anaerobic pathways. B) protein stores. C) glycolysis. D) aerobic respiration. E) the Krebs cycle.