Which of the following muscle types has tone in the absence of an external stimulus?
a. skeletal
b. multiunit smooth muscle
c. single-unit smooth muscle
d. cardiac muscle
e. all of these
C
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Which depicts the order of cell formation in erythropoiesis?
a: Proerythroblast b: Normoblast c: Myeloid stem cell d: Reticulocyte e: Erythroblast f: Mature erythrocyte A. c, a, e, b, d, f B. a, b, c, e, d, f C. a, c, d, b, e, f D. c, b, a, d, e, f E. c, a, b, e, d, f
If the osmotic pressure of the blood plasma is decreased, the glomerular filtration rate is
increased. Indicate whether the statement is true or false
What would the following blood values indicate? Blood pH = 7.5, [HCO3-] is high, PCO2 is high.
A) respiratory alkalosis with renal compensation B) metabolic acidosis only C) metabolic alkalosis with respiratory compensation D) metabolic acidosis with respiratory compensation E) respiratory acidosis with renal compensation
The atrioventricular valves open during
a. atrial diastole. b. both atrial and ventricular systole. c. ventricular diastole. d. atrial systole. e. ventricular systole.