The bone of mammal contains longitudinal
Haversian canals which are connected by
transverse canals , known as

Options

A. Semi-circular canals
B. Volkman's canals
C. Inguinal canal
D. Bidder's canals

Answer

To answer the question regarding the transverse canals that connect the longitudinal Haversian canals in mammalian bones, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Bone**:
- Mammalian bones are composed of a complex structure that includes Haversian canals, which are longitudinal channels that run through the bone.

2. **Identify the Function of Haversian Canals**:
- Haversian canals contain blood vessels, nerves, and lymphatic vessels, which are essential for the nourishment and communication within the bone tissue.

3. **Recognize the Need for Transverse Canals**:
- To connect these longitudinal Haversian canals, there are transverse canals that facilitate the communication between them.

4. **Evaluate the Options Given**:
- The question provides several options for the name of these transverse canals. We need to analyze each option carefully.

5. **Option Analysis**:
- **Option 1: Semicircular Canal**: This is incorrect as semicircular canals are part of the inner ear and not related to bone structure.
- **Option 2: Workman's Canals**: This is the correct answer. Workman’s canals (also known as Volkmann's canals) are indeed the transverse canals that connect the Haversian canals.
- **Option 3: Inguinal Canal**: This is incorrect as the inguinal canal connects the scrotum to the abdominal cavity and is not related to bone anatomy.
- **Option 4: Bidder's Canal**: This is also incorrect as Bidder's canal is found in frogs and does not pertain to mammalian bone structure.

6. **Conclude the Answer**:
- Based on the analysis, the transverse canals connecting the Haversian canals in mammalian bones are called **Workman's canals**.

### Final Answer:
The transverse canals that connect the longitudinal Haversian canals in mammalian bones are known as **Workman's canals**.