Question

matching 10 points
mucosa
1.
2.
3.
4.
muscularis externa
5.

Explanation:

Identify the sublayers of the Mucosa

The bracket labeled "Mucosa" spans layers 1, 2, and 3.

• Layer 1 is the innermost layer facing the lumen: Epithelium.
• Layer 2 is the middle connective tissue layer: Lamina Propria.
• Layer 3 is the thin outer smooth muscle layer of the mucosa: Muscularis Mucosae.

Identify the remaining tunic layers

• Layer 4 lies immediately beneath the mucosa: Submucosa.
• Layer 5 lies external to the Muscularis Externa: Serosa (or Adventitia).

Answer:

1. Epithelium
2. Lamina Propria
3. Muscularis Mucosae
4. Submucosa
5. Serosa (or Adventitia)