What is the physis?

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Prepare for the VetSkill Level 3 Diploma VN02 – Diagnostic Principles Test. Engage with multiple-choice questions, hints, and explanations. Achieve your certification!

Multiple Choice

What is the physis?

Explanation:
Growth plate is the region of long bones where lengthwise growth occurs during development. It’s a cartilaginous zone between the epiphysis (the end of the bone) and the metaphysis, and in growing animals chondrocytes divide, mature, and are gradually replaced by bone as the bone lengthens. When growth ends, this physis ossifies to form the epiphyseal line. Articular cartilage covers joint surfaces, not the growth zone. The medullary cavity is the hollow center of the shaft that houses bone marrow. The epiphysis is the end part of the bone, which includes the joint surface but is not the growth zone itself.

Growth plate is the region of long bones where lengthwise growth occurs during development. It’s a cartilaginous zone between the epiphysis (the end of the bone) and the metaphysis, and in growing animals chondrocytes divide, mature, and are gradually replaced by bone as the bone lengthens. When growth ends, this physis ossifies to form the epiphyseal line.

Articular cartilage covers joint surfaces, not the growth zone. The medullary cavity is the hollow center of the shaft that houses bone marrow. The epiphysis is the end part of the bone, which includes the joint surface but is not the growth zone itself.

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