The matrix of bone is in the form of thin concentric rings, called _________ . Bone cells, called ________ are present in fluid- filled spaces called _________ .These fluid filled spaces of the bone communicate with each other by network of fine canals, called ____________ .
Select the correct sequence of words to complete the above passage.

Options

A. Lacunae, Osteoblasts, Lamellae, Canaliculi
B. Lamellae, Osteocytes, Lacunae, Canaliculi
C. Lamellae, Chondrocytes, Canaliculi, Lacunae
D. Lacunae, Adipocytes, Canaliculi, Sarcoplasm

Answer

To complete the passage about bone structure, we need to fill in the blanks with the correct terms. Here’s a step-by-step breakdown of the solution:

1. **Identify the first blank**: The passage states that the matrix of bone is in the form of thin concentric rings. The correct term for these rings is **lamellae**.

2. **Identify the second blank**: The passage mentions bone cells. The correct term for bone cells is **osteocytes**.

3. **Identify the third blank**: The passage refers to fluid-filled spaces where bone cells are located. These spaces are called **lacunae**.

4. **Identify the fourth blank**: The passage describes how these fluid-filled spaces communicate with each other through fine canals. These canals are known as **canaliculi**.

Putting it all together, the completed passage reads:
"The matrix of bone is in the form of thin concentric rings, called **lamellae**. Bone cells, called **osteocytes**, are present in fluid-filled spaces called **lacunae**. These fluid-filled spaces of the bone communicate with each other by a network of fine canals, called **canaliculi**."