Which organ is oval in shape ,has a dense covering, and lies in extra-abdominal pouch having two 2 to 1.5 degree centigrade lower temperature than the body ?

Options

A. Ovary
B. Eyeball
C. Testis
D. Epididymis

Answer

To solve the question, we need to identify the organ that meets the following criteria:

1. **Shape**: Oval
2. **Covering**: Dense covering
3. **Location**: Lies in an extra-abdominal pouch
4. **Temperature**: Has a temperature 2 to 1.5 degrees Celsius lower than the body temperature

### Step-by-Step Solution:

**Step 1: Analyze the Options**
- The options provided are ovary, eyeball, testis, and epididymis.
- We need to determine which of these options fits all the criteria.

**Step 2: Consider the Testis**
- The testis is known to be oval in shape.
- It has a dense covering (the tunica albuginea).
- The testis is located in the scrotum, which is an extra-abdominal pouch.
- The temperature of the testis is indeed lower than the body temperature, typically around 2 to 2.5 degrees Celsius lower, which is essential for the process of spermatogenesis (sperm production).

**Step 3: Evaluate Other Options**
- **Ovary**: While it is an organ that produces gametes, it is not located in an extra-abdominal pouch.
- **Eyeball**: This is not an organ related to gamete production and does not fit the criteria.
- **Epididymis**: This is a structure associated with the testis but is not oval in shape and does not have a separate pouch.

**Step 4: Conclusion**
- Based on the analysis, the only organ that fits all the criteria is the **testis**.

### Final Answer:
The organ that is oval in shape, has a dense covering, lies in an extra-abdominal pouch, and has a temperature 2 to 1.5 degrees Celsius lower than the body is the **testis**.

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