GIT HISTOLOGY Flashcards by Verna Maria Francesca Banal

A cleft-like interval between the gums and the teeth internally and the lips and cheeks externally.

Oral vestibule

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True or False:

The hard palate contains a submucosa.

False

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A large cavity between the gums and the teeth.

Oral cavity proper

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The only communication between the oral vestibule and the oral cavity proper.

Retromolar space

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The labial glands are found in which layer of the lips?

A. Mucosa
B. Submucosa
C. Lamina propria
D. Serosa

B. Submucosa

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Morphology of most of the oral glands.

Tubulo-alveolar

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The mucosa of the lips contains this muco-cutaneous junction where there is an abrupt transition of epithelia.

Vermillon border

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V-shaped groove that divides the dorsum of the tongue.

Sulcus terminalis

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Arranged in distinct rows diverging to the right and left from the midline and parallel to the sulcus terminalis.

A. Filiform
B. Circumvallate
C. Foliate
D. Fungiform

A. Filiform

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Found mostly at the tip of the tongue.

A. Filiform
B. Circumvallate
C. Foliate
D. Fungiform

D. Fungiform

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Usually found at the dorsolateral margin of the tongue and is rudimentary to man.

Foliate papillae

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Which of the following is paired correctly?

A. Blandin and Nuhn - mucoserous - posterior lingual glands
B. Blandin and Nuhn - purely serous - anterior lingual glands
C. Von Ebner’s glands - purely serous - posterior lingual glands
D. Von Ebner’s glands - puerly serous - anterior lingual glands

C. Von Ebner’s glands - purely serous - posterior lingual glands

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Lining epithelium of the gums.

Stratified squamous cornified epithelium

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Hardest structure of the body.

A. Cementum
B. Bone
C. Dentin
D. Enamel

D. Enamel

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Forms dentin.

Odontoblasts

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Covers the dentin of the root.

Cementum

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Lining epithelium of the esophago-gastric junction.

Squamo-columnar epithelium

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The lamina propria of the esophagus contains these glands that are coiled tubular glands lined by pale-staining, mucus-secreting columnar or cuboidal cells.

Esophageal cardiac glands

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The Meissner’s corpuscle is found in what layer of the esophagus?

A. Tunica muscularis
B. Mucosa
C. Muscularis mucosa
D. Submucosa

D. Submucosa

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True of the tunica muscularis of the esophagus:

A. Myenteric plexuses are located in this layer.
B. Lower 1/3 is composed of smooth muscle only.
C. Middle 1/3 is composed of both smooth and skeletal muscle.
D. All the choices are correct.

D. All the choices are correct.

Longitudinal folds of the stomach.

Rugae

Minute depressions found on the mucosal surface of the stomach.

Gastric pits or Foveola gastricae

Connective tissue of the lamina propria of the stomach.

Loose connective tissue

Lining epithelium of the mucosa of the stomach.

Simple columnar epithelium without goblet cells

The tunica muscularis of the stomach contains the following EXCEPT: A. Inner circular B. Inner oblique C. Middle circular D. Outer longitudinal

A. Inner circular

In what layer of the stomach is the Auerbach's plexus located?

T. Muscularis

Parietal or Oxyntic cells secrete..

HCl and Intrinsic factor

Endocrine cells secrete the following EXCEPT: A. Intrinsic factor B. Serotonin C. Histamine D. Gastrin

A. Intrinsic factor

He most numerous type of gland in the stomach. A. Pyloric B. Cardiac C. Fundic D. Esophageal

C. Fundic

The lumen of the small intestines is widest at the duodenum and narrowest near the ___________.

Ileocecal valve

Lining epithelium of the small intestines.

Simple columnar epithelium with goblet cells

Transverse mucosal folds of the small intestines.

Plicae circularis or Valves of Kerkring

The following are characteristics of Paneth cells EXCEPT: A. Pyramidal B. Basophilic C. Secretes lysozymes D. Round or oval nucleus

B. Basophilic

ECL cells secrete ___________.

Histamine

The following are paired correctly EXCEPT: A. G cells - Gastrin B. A cells - Glucagon C. S cells - Somatostatin D. I cells. - CCK

C. S cells - Somatostatin

Crypts of Lieberkühn are found in what layer of the duodenum.

Lamina propria

Glands found in the submucosa of the duodenum.

Brunner's glands

True or False: Duodenum lacks a mesentery.

TRUE

Appearance of the intestinal villi of the duodenum.

Leaf-like

Peyer's Patches are found in ________.

Ileum

The longest segment of the small intestines.

Ileum

Non-movable segment of the small intestines.

Duodenum

Mucosal folds of the large intestines.

Plicae semilunaris

Sacculations of the large intestines are called __________.

Haustra

Segments of the large intestines that have a complete peritoneal covering EXCEPT: A. Cecum B. Appendix C. Transverse colon D. All of the choices are correct.

D. All of the choices are correct.

The rectum usually occurs in front of the ________ sacral vertebrae.

3rd

Lamina propria of the rectum contains transverse mucosal folds called ______________.

Plicae transversalis recti

Longitudinal folds in the upper half of the anal canal.

Anal columns of Morgagni

Lining epithelium of the lower half of the anal canal.

Stratified squamous non-cornified with goblet cells