Which skeletal muscle component includes all the others?
a. actin
b. myofibril
c. myosin
d. sarcomere
e. muscle fiber
e
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Chromosomal rearrangement can occur by ____
a. translocation only b. inversion only c. translocation and inversion d. point mutations e. alternative splicing
Which substance is not capable of diffusing across the endothelial cells of a capillary? a. Carbon dioxide b. None are capable of diffusing across the endothelial cells
c. All are capable of diffusing across the endothelial cells. d. Small lipid soluble molecules e. Oxygen
Which of the following statement(s) is/are correct regarding fifth disease?
A. It is characterized by a maculopapular rash that lasts for days to weeks. B. It is a childhood febrile disease characterized by a red rash on the cheeks. C. The causative agent is capable of crossing the placenta. D. It is caused by Parvovirus B19. E. All of the choices are correct.
When heart valves do not close fully or open incompletely, this can be heard using a stethoscope as
A. lub dub. B. heart murmur. C. major heart defect. D. atherosclerosis.