Digestive... *general/Histology*

Question 1

Ingestion, Propulsion, Mechanical Digestion, Chemical digestion, Absorption and Defecation are all parts of which process?

Answer 1

Digestive

Question 2

Most Digestive organs are covered by Serous Membrane known as (outer covering) ____________

Answer 2

Visceral Peritoneum

Question 3

The Space between the Visceral and Parietal Peritoneum

Answer 3

Periotoneal Cavity

Question 4

What purpose does the Peritoneal fluid serve in the Peritoneal Cavity?

Answer 4

Lubricates the visceral and peritoneal membranes… decrease friction

Question 5

_________ allow segments of the digestive tract to be suspended… This structure also provides passage for blood vessels, nerves, and lymphatic vessels.

Answer 5

Mesenteries

Question 6

What Organs have no Mesentery? (within the digestive system)
What is the special name for these guys

Answer 6

Pancreas & Large Intestine

These structures are called retro-peritoneal

Question 7

Walls of the Digestive Tract consist of 4 layers… What are they going from the “Inside –> Out” ?

Answer 7

Mucosa –> Submocosa –> Muscularis Externa –> The Serosa

Question 8

What is the Mucosa composed of? (2 major terms/layers)

Answer 8

Epithelial Layer: Stratified… Oral cavity, Esophagus… Simple (stomach, small intestine)

Lamina propria: blood vessels, mucous glands, sensory nerve endings …

Question 9

One of the 4 tissue layers of the Alimentary Canal Mocosa, Submucosa, Muscularis externa and Serosa is responsible for Peristalsis… which one is it?

Answer 9

Muscularis externa… This region is dominated by smooth muscle cells

Question 10

This layer of alimentary canal contains, blood vessels and some exocrine glands that secrete buffers/enzymes into lumen of digestive tract… which one?

Answer 10

Submucosa

Question 11

This layer of alimentary canal lines most of the digestive tract inside peritoneal cavity.

Answer 11

Serous Membrane