During endochondral bone formation,
A) the matrix of the cartilage model becomes calcified.
B) cells of the perichondrium differentiate into osteoblasts.
C) osteoclasts erode the center of the new bone to form a marrow cavity.
D) capillaries and osteoblasts migrate into the heart of the cartilage.
E) All of the answers are correct.
E) All of the answers are correct.
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Bile secreted by the liver contains the major enzymes for digesting fats.
Answer the following statement true (T) or false (F)
Atrial contraction occurs just before
A. atrial relaxation and ventricular filling. B. isovolumetric relaxation. C. ventricular ejection. D. isovolumetric contraction.
When an enzyme catalyzes a chemical reaction, it is consumed in the process, so it cannot be used repeatedly.
Answer the following statement true (T) or false (F)
The most medial of the abdominal muscles are the ________ muscles.
A. tendinous intersections B. transversus abdominis C. internal oblique D. external oblique E. rectus abdominis