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BIO 254 DIGESTIVE SYSTEM REAL EXAM ACCURATE
QUESTIONS WITH 100% RATED CORRECT ANSWERS
EXPERT VERIFIED GET IT A+ 2025 LATEST UPDATED
layers of alimentary canal wall - (answers)-mucosa
-submucosa
- muscularis
-serosa
mucosa layer of alimentary canal - (answers)Deepest layer
-folded to increase surface area
-absorbs dietary nutrients
-secretes mucous/enzymes
-made of simple epithelium
Submucosa layer of alimentary canal - (answers)-contains larger vessels
-nourishes cells
-transports absorbed food molecules
-made of connective tissue
Muscularis layer of alimentary canal - (answers)Circular layer-around muscle
Longitudal layer-shorten/contract tube
-made of muscle tissue
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-moves tubes/ food materials
serosa layer of alimentary canal - (answers)Outer most layer(provides protection)
-serosa fluid eliminates friction
-Visceral peritoneum of organs within abdominal cavity
alimentary canal - (answers)Food passage way
-mouth
-Pharynx
-esophagus
-stomach
-small intestine
-large intestine
-anal canal
Mechanical digestion - (answers)Physical breakdown of large pieces of food into
smaller pieces
ex; teeth chewing food
-does not change chemical composition
chemical digestion - (answers)Enzymes break down food into smaller molecules
ex; saliva breaks down food surface area for better digestion
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Mastification - (answers)chewing
-mechanical digestion
small intestine - (answers)absorbs nutrients
movement of alimentary canal - (answers)Mixing- Muscles contract rhythmically
- does not move material in one direction
-segmentation in small intestine/churning in stomach
Propelling- moves material in one direction
-peristalsis
submucosal plexus - (answers)controls secretions
Myenteric plexus - (answers)controls gastrointestinal motility
Parasympathetic impulse - (answers)increase activities of digestive system
(secretion and motility)
Sympathetic impulse - (answers)inhibit digestive actions (secretion and motility)
enteroendocrine cells - (answers)Found in stomach and small intestine
BIO 254 DIGESTIVE SYSTEM REAL EXAM ACCURATE
QUESTIONS WITH 100% RATED CORRECT ANSWERS
EXPERT VERIFIED GET IT A+ 2025 LATEST UPDATED
layers of alimentary canal wall - (answers)-mucosa
-submucosa
- muscularis
-serosa
mucosa layer of alimentary canal - (answers)Deepest layer
-folded to increase surface area
-absorbs dietary nutrients
-secretes mucous/enzymes
-made of simple epithelium
Submucosa layer of alimentary canal - (answers)-contains larger vessels
-nourishes cells
-transports absorbed food molecules
-made of connective tissue
Muscularis layer of alimentary canal - (answers)Circular layer-around muscle
Longitudal layer-shorten/contract tube
-made of muscle tissue
,2|Page
-moves tubes/ food materials
serosa layer of alimentary canal - (answers)Outer most layer(provides protection)
-serosa fluid eliminates friction
-Visceral peritoneum of organs within abdominal cavity
alimentary canal - (answers)Food passage way
-mouth
-Pharynx
-esophagus
-stomach
-small intestine
-large intestine
-anal canal
Mechanical digestion - (answers)Physical breakdown of large pieces of food into
smaller pieces
ex; teeth chewing food
-does not change chemical composition
chemical digestion - (answers)Enzymes break down food into smaller molecules
ex; saliva breaks down food surface area for better digestion
, 3|Page
Mastification - (answers)chewing
-mechanical digestion
small intestine - (answers)absorbs nutrients
movement of alimentary canal - (answers)Mixing- Muscles contract rhythmically
- does not move material in one direction
-segmentation in small intestine/churning in stomach
Propelling- moves material in one direction
-peristalsis
submucosal plexus - (answers)controls secretions
Myenteric plexus - (answers)controls gastrointestinal motility
Parasympathetic impulse - (answers)increase activities of digestive system
(secretion and motility)
Sympathetic impulse - (answers)inhibit digestive actions (secretion and motility)
enteroendocrine cells - (answers)Found in stomach and small intestine
