Which of the following best describes hydroxyapatite?
A. Dissolved minerals in the tissue fluid
B. Dissolved minerals in the blood plasma
C. A secretion of the osteoclasts
D. Calcium phosphate in the bone matrix
E. Fibrous protein in the bone matrix
Answer: D
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Endochondral ossification is a form of bone growth in which a cartilaginous model is replaced by bone
Indicate whether this statement is true or false.
Generally, negatively charged plasma proteins are
A. moved across the filtration membrane by active transport pumps. B. attracted by the positive charge of the filtration membrane. C. repelled by the negative charge of the filtration membrane. D. engulfed by endocytosis and reabsorbed at the filtration membrane.
What are the semicircular ducts filled with?
A. Vitreous body B. Cerumen C. Aqueous humor D. Perilymph E. Endolymph
Which of the following represents the correct sequence of how sperm will travel through the spermatic ducts?
A. Efferent ductules - epididymis - ductus deferens - ejaculatory duct B. Ductus deferens - ejaculatory duct - efferent ductules - epididymis C. Efferent ductules - ductus deferens - ejaculatory duct - epididymis D. Epididymis - ductus deferens - ejaculatory duct - efferent ductules