Bone and Cartliage Week 4

Which of the following are not primary function of bones?

• Support the weight of the body

• Providing attachment for internal organs and soft structures within the body

• Storage of Calcium and Phosphorus

• production of body heat

Elastic cartilage is present in

• Tracheal ring

• Epiglottis

• Intervertebral disc

• Costal cartilage

Chondroblasts are:-

• Minor breaks in the cartilage

• Cartilage cells

• Reaction that occur in cartilage

• None of these

Answer explanation

Chondroblasts are young, immature cartilage cells that eventually form chondrocytes via a process of chondrogenesis. Chondroblasts are also known as subchondral cortico-spongious progenitors or perichondrial cells.

You got your upper ear pierced . Which type of cartilage did they pierce?

• Hyaline

• Fibrous

• Elastic

• Mix

Most bones including long bones develop by

Answer explanation

Endochondral ossification is the process of bone formation in which cartilage scaffolds, arranged in zones, are gradually replaced by bone.