Bone growth in length occurs by mitosis of
A) concentric lamellae.
B) cartilage cells in the epiphyseal side of the metaphysis.
C) growth of trabeculae.
D) osteoblasts in the endosteum.
E) cartilage cells in the diaphyseal side of the metaphysis.
B
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A transverse plane will cut a body or organ into
a) anterior and posterior portions. b) left and right portions. c) superior and inferior portions. d) portions separated at an angle to its longitudinal axis. e) unequal left and right portions.
Polysaccharides
A. are the smallest carbohydrates. B. contain carbon, hydrogen, and phosphate atoms. C. are not found in plants. D. contain long chains of monosaccharides. E. are formed when sucrose and glucose combine.
The area of the sarcomere containing the thick filaments is the
A) Z line. B) M line. C) A band. D) I band.
Graded (local) potentials have ALL of the following characteristics EXCEPT
A) one-way propagation. B) variation of amplitude. C) comparatively long duration. D) no refractory period.