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Anatomy 1 > Alimentary System Overview > Flashcards

Alimentary System Overview Flashcards

1
Q

What are the two types of organs in the alimentary tract

A

Digestive tract

Accessory organs

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2
Q

What are the accessory organs

A 
Salivary glands
Tongue
Teeth
Liver
Gallbladder
Pancreas
Vermiform appendix
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3
Q

What are the layers of the alimentary tract

A

Mucosa
Submucosa
Muscularis
Serosa

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4
Q

What are the layers of mucosa

A

Inner mucosa epithelium
Lamina propria
Muscularis mucosae

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5
Q

What is the lamina propria

A

A thin layer of connective tissue

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6
Q

What is the muscularis mucosae

A

A thin layer of smooth muscle

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7
Q

What is the submucosa composed of

A

Connective tissue that is thicker than the mucosal layer

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8
Q

What does the submucosa contain

A

Numerous small glands, blood vessels and parasympathetic nerves that form the submucosal plexus

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9
Q

What is the muscularis layer composed of

A

A thick layer of muscle tissue that wraps around the submucosa

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10
Q

How are the nerves organised in the muscularis layer

A

Into a myenteric plexus

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11
Q

Where does the myenteric plexus lie

A

Between the CI and the LO muscle

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12
Q

What is the serosa

A

The visceral layer of the peritoneum continuous with the mesentery

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13
Q

Where do blood vessels and nerves travel through to reach the digestive tube

A

Mesentery

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14
Q

What are the conditions that can effect the alimentary tract

A

Barrett’s oesophagus
Coeliacs disease
Inflammatory bowel disease

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15
Q

What is barrels oesophagus characterised by

A

Metaplasia

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16
Q

What is coeliacs disease characterised by

A

Hyperplasia of crypts

Villous atrophy

17
Q

What is the difference between serosa and adventita

A

Serousa - covers organs in body cavity and secretes serous fluid to prevent friction
Adventita - attaches organ to surrounding tissue eg - oesophagus to trachea

18
Q

What are the activities of the alimentary system

A 
Secretion
Digestion
Motility
Absorption
Excretion

Anatomy 1 (23 decks)

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