During the Process of Endochondral Ossification,chondrocytes in the Cartilage Model

question 76

Multiple Choice

During the process of endochondral ossification,chondrocytes in the cartilage model die.Why does this occur?

• A)Blood supply to the cartilage is cut off by the developing periosteum.
• B)Canaliculi connecting adjacent chondrocyte lacunae fuse.
• C)Nutrients cannot diffuse to the chondrocytes through the calcified matrix.
• D)The developing bone collar secretes enzymes that destroy the chondrocytes.
• E)Phagocytic osteoclasts in the new bone engulf and destroy the chondrocytes.

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Definitions:

Filtration Membrane

A barrier consisting of multiple layers through which substances are filtered, commonly used in reference to the kidney's filtration apparatus.

Capillary Endothelium

The single layer of cells lining the interior surface of blood capillaries, involved in the exchange of materials such as oxygen and carbon dioxide between blood and tissues.

Podocytes

Specialized cells in the kidney that wrap around capillaries of the glomerulus, playing a key role in the filtration of blood to form urine.

Renal Tubules

Renal tubules are microscopic tubes in the kidney where filtered blood is further processed into urine by reabsorbing water and nutrients and secreting wastes.