Choose the correctly matched pair

Options

A. inner surface of bronchioles - squamous epithelium
B. Inner lining of salivary ducts - Ciliated epithelium
C. Moist surface of buccal cavity - Glandular
epithelium
D. Tubular parts of nephrons - Cuboidal epithelium

Explanation

To determine the correctly matched pair from the given options, we need to analyze each option based on the type of epithelium that lines the specified structures.

### Step-by-Step Solution:

1. **Option 1: Inner surface of bronchioles, squamous epithelium**
- The inner surface of bronchioles is actually lined by **ciliated epithelium**, not squamous epithelium. The ciliated epithelium helps in the movement of mucus and trapped particles out of the respiratory tract.

2. **Option 2: Inner lining of salivary duct, ciliated epithelium**
- The inner lining of the salivary duct is lined by **cuboidal epithelium**, not ciliated epithelium. Cuboidal epithelium is more suitable for secretion and absorption functions in glands.

3. **Option 3: Moist surface of buccal cavity, glandular epithelium**
- The moist surface of the buccal cavity is lined by **stratified squamous epithelium**, not glandular epithelium. The stratified squamous epithelium provides protection against abrasion.

4. **Option 4: Tubular part of nephrons, cuboidal epithelium**
- The tubular parts of nephrons, specifically the proximal convoluted tubule (PCT) and distal convoluted tubule (DCT), are indeed lined by **cuboidal epithelium**. This type of epithelium is suitable for the reabsorption and secretion functions of the nephron.

### Conclusion:
The correct answer is **Option 4: Tubular part of nephrons, cuboidal epithelium**.

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