Which of the following pairs correctly identifies function of parasympathetic nervous system ?

Options

A. Slows heartbeat, promotes pancreatic secretion
B. Increases secreation of sweat gland and intestinal gland
C. Accelerates heartbeat, dilates arteries
D. Raises blood pressure, increases peristaltic activity

Explanation

To determine which of the following pairs correctly identifies the function of the parasympathetic nervous system, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Autonomic Nervous System**:
- The autonomic nervous system is divided into two main parts: the sympathetic nervous system and the parasympathetic nervous system. Each has distinct functions.

2. **Identify Functions of the Parasympathetic Nervous System**:
- The parasympathetic nervous system is often referred to as the "rest and digest" system. Its primary functions include:
- Slowing down the heart rate
- Stimulating digestive processes
- Promoting glandular secretions, including pancreatic secretions

3. **Analyze the Options**:
- Look for pairs that mention slowing the heartbeat and promoting digestive or glandular secretions, particularly pancreatic secretion, as these are key functions of the parasympathetic nervous system.

4. **Select the Correct Pair**:
- Based on the functions identified, the correct pair that aligns with the functions of the parasympathetic nervous system is the one that states it slows the heartbeat and promotes pancreatic secretion.

5. **Conclude the Answer**:
- Therefore, the correct answer is **Option A**, which states that the parasympathetic nervous system slows the heartbeat and promotes pancreatic secretion.