A temporary endocrine gland in the human body is

Options

A. Pineal gland
B. corpus cardiacum
C. Corpus luteum
D. corpus allatum

Answer

To answer the question "A temporary endocrine gland in the human body is," we will analyze the options provided and identify the correct one step by step.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for a temporary endocrine gland in the human body. An endocrine gland is a gland that secretes hormones directly into the bloodstream.

2. **Reviewing the Options**: The options given are:
- A) Pineal gland
- B) Corpus cardicum
- C) Corpus luteum
- D) Corpus allatum

3. **Eliminating Incorrect Options**:
- **Option B (Corpus cardicum)** and **Option D (Corpus allatum)**: These glands are not present in humans; they are found in insects. Therefore, both of these options can be eliminated right away.

4. **Analyzing the Remaining Options**:
- **Option A (Pineal gland)**: The pineal gland is a small, permanent endocrine gland located in the brain. It secretes melatonin, which regulates sleep patterns. Since it is always present, it cannot be classified as a temporary gland.
- **Option C (Corpus luteum)**: The corpus luteum is formed in the ovaries after ovulation from the remnants of the Graafian follicle. It is responsible for secreting hormones such as progesterone and estrogen, especially during pregnancy.

5. **Determining the Nature of the Corpus Luteum**:
- The corpus luteum is considered a temporary endocrine gland because it only functions as an endocrine gland during the luteal phase of the menstrual cycle and during early pregnancy. If fertilization does not occur, the corpus luteum degenerates and ceases to function, thus making it temporary.

6. **Conclusion**: Based on the analysis, the correct answer is **Option C: Corpus luteum**. This gland is temporary as it only functions during specific conditions.

### Final Answer:
The temporary endocrine gland in the human body is **Corpus luteum**.