Philips collip discovered which of the following hormones `:`

Options

A. Parathyroid hormone
B. Thyroxine
C. A.D.H.
D. Oxytocin

Answer

To answer the question, "Philips Collip discovered which of the following hormones?" we will follow these steps:

### Step 1: Identify the Scientist and the Hormones
We need to focus on the scientist mentioned in the question, Philips Collip, and the hormones listed: Parathyroid hormone, thyroxin hormone, ADH (Antidiuretic Hormone), and oxytocin.

### Step 2: Research the Discovery
Philips Collip is known for his work related to the parathyroid hormone (PTH). This hormone is crucial for regulating calcium levels in the blood.

### Step 3: Understand the Function of Parathyroid Hormone
Parathyroid hormone is produced by the parathyroid glands, which are located on the backside of the thyroid gland. The primary function of PTH is to increase calcium levels in the blood by:
- Stimulating bone reabsorption (demineralization of bone).
- Increasing calcium absorption from the digestive tract.
- Enhancing calcium reabsorption in the kidneys.

### Step 4: Eliminate Other Options
- **Thyroxine hormone (T4)** is produced by the thyroid gland and regulates metabolism but is not related to Philips Collip.
- **ADH (Antidiuretic Hormone)** and **oxytocin** are produced by the pituitary gland and are also not associated with Collip.

### Step 5: Conclusion
Based on the information gathered, we conclude that Philips Collip discovered the parathyroid hormone.

### Final Answer
Philips Collip discovered the parathyroid hormone.

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