Question

Identify the following parts labeled 1, 2, 3 and 4.

• A. 1. Muscularis 2. Submucosa 3. Mucosa 4. Serosa
• B. 1. Serosa 2. Muscularis 3. Submucosa 4. Mucosa
• C. 1. Mucosa 2. Serosa 3. Muscularis 4. Submucosa
• D. 1. Submucosa 2. Mucosa 3. Serosa 4. Muscularis

Answer 1

The correct option is B

1. Serosa 2. Muscularis 3. Submucosa 4. Mucosa

The missing labels 1-4 refer to -

1. Serosa: outermost protective layer made of connective tissue

2. Muscularis: made of longitudinal and circular muscles

3. Submucosa: made of dense connective tissue

4. Mucosa: made of loose connective tissue