The Gastrointestinal System

Question 1

ICOL

Auerbach’s or Myenteric plexus

Answer 1

MUSCULARIS EXTERNA

Question 2

Contains, blood vessels, lymph vessels and nerves

Answer 2

SEROSA or FIBRO-SEROUS COAT

Question 3

Types of Cells

Answer 3

1. Chief or Zymogenic- Principal cells
2. Parietal or Oxyntic or HCl cells-
   acid-forming cells; secrete HCl
   and intrinsic factor
3. Mucous neck cells
4. Enteroendocrine cells

Question 4

Simple tubular glands
Granule cells of Paneth
Contains bactericidal enzymes
Absent in the large intestine

Answer 4

Intestinal Glands

Question 5

function of Large Intestine

Answer 5

Functions:
 Absorption of water
 Formation of fecal mass
 Secretion of mucus
 Food absorption no longer a   function

Question 6

ACCESSORY GLANDS of GIT

Answer 6

Liver
Gall bladder
Pancreas
Salivary glands- Parotid, Sublingual, Submandibular

Question 7

type of salivary gland

• PURELY SEROUS ACINI (ACIDOPHILIC GRANULAR CYTOPLASM, SMALL LUMEN, ROUND NUCLEI )
• PROMINENT INTRALOBULAR DUCT
• ABSENCE OF ISLETS OF LANGERHANS

Answer 7

PAROTID

Question 8

type of salivary gland

• MIXED GLAND, PREDOMINANTLY MUCUS (SLIGHTLY BASOPHILIC CYTOPLASM, WIDE LUMEN, FLAT NUCLEI)
• THINNER AND LONGER DEMILUNES IN ITS MUCUS ACINI
• ABSENT INTERCALARY DUCT

Answer 8

sublingual

Question 9

type of salivary gland

• MIXED GLAND , PREDOMINANTLY SEROUS
• SHORTER AND THICKER DEMILUNES IN ITS MUCUS ACINI
• INTRALOBULAR DUCT NOT AS PROMINENT AS PAROTID

Answer 9

submandibular