Filum terminale of Frog is located in

Options

A. Skull
B. Urostyle
C. Pelvic girdle
D. Pectoral girdle

Answer

To determine the location of the filum terminale in frogs, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure**: The filum terminale is a fibrous extension of the spinal cord. It is part of the central nervous system and serves to anchor the spinal cord in place.

2. **Identify the Anatomy**: In frogs, the spinal cord is relatively short and has a flattened structure. It widens at the anterior end and tapers towards the posterior end.

3. **Locate the Posterior End**: The posterior end of the spinal cord tapers into a structure known as the urostyle. The urostyle is a long, unsegmented bone that is formed from the fusion of vertebrae.

4. **Determine the Function of the Urostyle**: The urostyle supports the frog's body and is part of the vertebral column. It is crucial for locomotion and stability.

5. **Conclude the Location**: Since the filum terminale extends from the terminal end of the spinal cord to the urostyle, we can conclude that the filum terminale of the frog is located in the urostyle.

### Final Answer:
The filum terminale of the frog is located in the **urostyle**.

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