Gonadotropin releasing hormone is transferred to anterior pituitary by

Options

A. Left coronary artery
B. Hypophyseal portal artery
C. Axons of neurosecretory cells
D. Nuclei of hypothalamus.

Answer

**Step-by-Step Solution:**

1. **Understanding Gonadotropin-Releasing Hormone (GnRH)**:
- GnRH is a hormone produced in the hypothalamus that plays a crucial role in regulating the reproductive system by stimulating the release of two key hormones from the anterior pituitary: Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH).

2. **Identifying the Pathway of GnRH**:
- After its production in the hypothalamus, GnRH needs to reach the anterior pituitary gland to exert its effects.

3. **Exploring the Options**:
- The options provided are:
- Left coronary artery
- Hypophyseal portal artery
- Axons of neurosecretory cells
- Nuclei of hypothalamus

4. **Analyzing the Options**:
- The left coronary artery is related to blood supply to the heart and is not involved in hormone transport to the anterior pituitary.
- The axons of neurosecretory cells are involved in the transport of hormones but primarily for posterior pituitary hormones, not for GnRH.
- The nuclei of the hypothalamus refer to the clusters of neurons that produce GnRH but do not transport it.

5. **Correct Answer**:
- The correct option is the **hypophyseal portal artery**. This specialized blood vessel system connects the hypothalamus and the anterior pituitary, allowing GnRH to be transported directly to the anterior pituitary where it stimulates the release of FSH and LH.

**Final Answer**: Gonadotropin-releasing hormone is transferred to the anterior pituitary by the hypophyseal portal artery.

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