Osteoblasts involved in bone growth in length come primarily from

A. osteocytes.
B. chondrocytes.
C. endothelium of blood vessels.
D. connective tissue surrounding blood vessels of the endosteum.
E. periosteum.


Answer: D

Anatomy & Physiology

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A) pulmonary veins B) pulmonary valve C) aorta D) inferior vena cava E) superior vena cava

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A. Actin filaments B. Lipid droplets C. Lipochrome D. Melanin E. Hemoglobin

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