Main Menu » Organs & Systems » Digestive » Tubular Digestive System » Small Intestine » Segments » Segments 4

Jejunum or ileum

The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x

Mucosa <p>The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x</p>

Mucosa

The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x

- Epithelium of enterocytes and goblet cells <p>The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x</p>

- Epithelium of enterocytes and goblet cells

The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x

- Lamina propria <p>The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x</p>

- Lamina propria

The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x

- Muscularis mucosae <p>The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x</p>

- Muscularis mucosae

The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x

- Villi <p>The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x</p>

- Villi

The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x

- Intestinal glands <p>The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x</p>

- Intestinal glands

The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x

- Lacteals <p>The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x</p>

- Lacteals

The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x

Submucosa <p>The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x</p>

Submucosa

The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x

Muscularis externa, inner circular <p>The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x</p>

Muscularis externa, inner circular

The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x

Muscularis externa, outer longitudinal <p>The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x</p>

Muscularis externa, outer longitudinal

The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x

Serosa <p>The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x</p>

Serosa

The evaginations (villi) and invaginations (intestinal glands) of the epithelium are evident. Lacteals are centrally located in the villi. This portion of the small intestine is surrounded by a serous membrane. Trichrome stain, 100x

Submucosal plexus (Meissner’s plexus) > <p>The submucosal plexus (Meissner’s plexus) of the autonomic nervous system is visible in the submucosa; it innervates the muscularis mucosae. The myenteric plexus (Auerbach’s plexus) is located between and innervates the inner circular and outer longitudinal layers of muscularis externa.</p>

Submucosal plexus (Meissner’s plexus) >

The submucosal plexus (Meissner’s plexus) of the autonomic nervous system is visible in the submucosa; it innervates the muscularis mucosae. The myenteric plexus (Auerbach’s plexus) is located between and innervates the inner circular and outer longitudinal layers of muscularis externa.

Myenteric plexus (Auerbach's plexus) <p>The submucosal plexus (Meissner’s plexus) of the autonomic nervous system is visible in the submucosa; it innervates the muscularis mucosae. The myenteric plexus (Auerbach’s plexus) is located between and innervates the inner circular and outer longitudinal layers of muscularis externa.</p>

Myenteric plexus (Auerbach's plexus)

The submucosal plexus (Meissner’s plexus) of the autonomic nervous system is visible in the submucosa; it innervates the muscularis mucosae. The myenteric plexus (Auerbach’s plexus) is located between and innervates the inner circular and outer longitudinal layers of muscularis externa.

Main Slide Mucosa - Epithelium of enterocytes and goblet cells - Lamina propria - Muscularis mucosae - Villi - Intestinal glands - Lacteals Submucosa Muscularis externa, inner circular Muscularis externa, outer longitudinal Serosa Submucosal plexus (Meissner’s plexus) >Myenteric plexus (Auerbach's plexus)