Which of the following is not true of elastic filaments?
A. They are composed of titin.
B. They run through the core of thin filaments.
C. They attach to Z discs.
D. They prevent overstretching of muscle fibers.
E. They help to stabilize thick filaments.
B. They run through the core of thin filaments.
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All of the following veins drain into the inferior vena cava EXCEPT the ________
A) lumbar veins B) external iliac vein C) gonadal veins D) adrenal veins
Which of the following is not considered a weight-bearing bone?
A) The tibia B) The calcaneous C) The talus D) The fibula E) The femur
Which of the following is not a function of the skeletal system?
A) body support B) calcium homeostasis C) protection of internal organs D) blood cell production E) temperature regulation
While examining a sample of muscle tissue under a microscope, you notice that the cells are multinucleated. They are long, unbranched, striated, and contain a developed transverse tubule system. Which muscle type does this sample contain?
A. Striated muscle B. Skeletal muscle C. Smooth muscle D. Cardiac muscle