The three phases of the uterine cycle in order are

Options

A. Menstrual `rarr` Luteal Ovulatory
B. Follicular `rarr` Luteal `rarr` Ovulatory
C. Menstrual `rarr` Proliferative `rarr` Ovulatory
D. Ovulatory `rarr` Follicular `rarr` Luteal

Answer

To determine the correct order of the three phases of the uterine cycle, we can break down the process step by step:

### Step 1: Identify the Phases of the Uterine Cycle
The uterine cycle consists of three main phases:
1. Menstrual Phase
2. Follicular Phase (also known as the Proliferative Phase)
3. Luteal Phase

### Step 2: Understand the Sequence of the Phases
- The cycle begins with the **Menstrual Phase**, where the endometrial lining of the uterus breaks down and is shed if fertilization does not occur.
- Following the menstrual phase is the **Follicular Phase**, during which ovarian follicles mature, and levels of hormones such as LH (Luteinizing Hormone) and FSH (Follicle Stimulating Hormone) increase.
- The **Ovulatory Phase** occurs when a surge in LH leads to the release of an ovum from the mature follicle.
- After ovulation, the cycle transitions into the **Luteal Phase**, where the ruptured follicle transforms into the corpus luteum, which secretes progesterone.

### Step 3: Correctly Order the Phases
Based on the above understanding, the correct order of the phases in the uterine cycle is:
1. Menstrual Phase
2. Follicular Phase (Proliferative Phase)
3. Luteal Phase

### Final Answer
The three phases of the uterine cycle in order are:
1. Menstrual Phase
2. Follicular Phase
3. Luteal Phase

---