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PHARM 204 (Final) > GI > Flashcards

GI Flashcards

1
Q

Four Layer of Digestive Tract

A

Mucosa (Innermost)
Submucosa
Muscular Layer
Serosa (Outermost)

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2
Q

Mucosal Epithelium

A

Stratified or Simple Epithelium

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3
Q

Oral Cavity, Pharynx, Esophagus

A

Nonkeratinized Stratified Squamous

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4
Q

Stomach, Small Intestine, Large Intestine

A

Simple Columnar Cells

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5
Q

Mucosa (Plicae Circulares)

A

Folds that increase surface area and absorption

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6
Q

Mucosa (Lamina Propria)

A

Contains blood vessels, smooth muscle, and lymphatic

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7
Q

Mucosa (Muscularis Mucosae)

A

Smooth muscle at border of mucosa

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8
Q

Submucosa (What’s in this layer)

A

Large blood vessels, nerves, and lymphatics

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9
Q

Submucosa (Innervated by?)

A

Submucosal Neural Plexuses
(Non-voluntary)

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10
Q

Muscular Layer (Contains?)

A

Smooth muscle fibers

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11
Q

Muscular Layer (Innervated by?)

A

Myenteric Neural Plexus

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12
Q

Serosa (Not Found Where?)

A

Pharynx, Esophagus, Rectum

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13
Q

Pharynx, Esophagus, Rectum (Covered by?)

A

Fibrous Adventitia

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14
Q

Oral Mucosa (Lining Structure?)

A

Non-keratinized Stratified Squamous Cells

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15
Q

Parotid

A

Enzyme Rich (25% of Saliva)

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16
Q

Sublingual

A

Mucin Rich (5% of Saliva)

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17
Q

Submandibular

A

Enzymes and Mucins (70% of Saliva)

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18
Q

Parotid Duct

A

Saliva drains from Parotid Salivary Glands to mouth cavity

19
Q

Esophagus (Location?)

A

Posterior to Trachea

20
Q

Esophagus (Innervated by?)

A

Vagus Nerve

21
Q

Esophagus (Mucosa)

A

Nonkeratinized Stratified Squamous Epithelium

22
Q

Esophagus (Submucosa)

A

Contains large folds for significant expansion
Contains esophageal glands
–> Produces mucus

23
Q

Esophagus (Muscularis Mucosae)

A

Only one layer in Esophagus, different than rest of GI
Gets thicker the closer you get to the stomach

24
Q

Relaxed Stomach (Gastric Folds)

A

When relaxed: Mucosa forms lots of muscular ridges
–> Allows for expansion of stomach

When stretched: Stomach has less muscular ridges

25
Q

Vagus Nerve

A

Paarasympathetic

26
Q

Celiac Plexus

A

Sympathetic

27
Q

Greater Omentum

A

Forms a pouch that hangs like an apron off the stomach

28
Q

Lesser Omentum

A

Extends from liver to stomach on top of the stomach

29
Q

Gastric Glands

A

Gastric Juice
- Digestion

30
Q

Mucous Surface Cells

A

Faces the Lumen

Produces Mucus
- Protects stomach from digesting iteself

31
Q

Mucous Neck Cells

A

Located in gastric pit

Produces Mucus
- Lubricate food

32
Q

Parietal Cells

A

Intrinsic Factor
- Absorption of Vit B12
Hydrochloric Acid
- Kills microorganisms

33
Q

Chief Cells

A

Pepsinogen
- Converted into pepsin
- Pepsin digests proteins

34
Q

Enteroendocrine Cells

A

Gastrin
- Stimulates parietal and chief cells to release their products

35
Q

Duodenum

A

Receives digestive enzymes from pancreas

36
Q

Jejunum

A

Where most of digestion and absorption occurs

37
Q

Ileum

A

Last region of the small intestine

38
Q

Vilus (Absorption of digested nutrients)

A

Villus contain capillaries that can absorb nutrients

39
Q

Vilus (Contains?)

A

Arteriole
Venule
Lymphatic Vessel

40
Q

Plicae Circulare (Stomach vs Small Intestine)

A

Stomach: Folds stretch

Small Intestine: Folds do not disapper or stretch when material passes through

41
Q

Lacteal

A

Found in vilus, absorbs whatever material that can not be absorbed by capillaries

42
Q

Duodenal Submucosal Gland

A

Produces large amounts of mucus
Neutralizes acids

43
Q

Duodenal Papilla

A

Contains duodenal ampulla, where bile duct and pancreatic duct connect with the duodenum

PHARM 204 (Final) (14 decks)

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