Welcome to MedGuide’s premedical series of content.  Here you will find a collection of videos and MCQs. Make your own notes, at your own pace, with the videos and then have a crack at the questions – don’t worry, all questions are answerable from the video content.  Best of luck! 

  1. Know the contents of the gastrointestinal tract/alimentary canal
  2. Know the role of the salivary glands and teeth in the oral stage of digestion
  3. Outline the stages of swallowing and its innervation
  4. Know the accessory organs of digestion in brief
  5. Understand the relation of small and large bowel, including a brief overview of function

PreMed Part Four

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Question 1
Which of the following is not a constituent of the alimentary canal?
A
Nasal cavity
B
Oral cavity
C
Laryngopharynx
D
Terminal ileum
E
Caecum
Question 2
Which structure prevents swallowed food from passing into the nasal cavity?
A
Hard palate
B
Choanae
C
Epiglottis
D
Salpingopharygenus muscle directly
E
Soft palate
Question 3
Which structure connects the pharynx to the stomach?
A
Laryngopharynx
B
Oral cavity
C
Cardia
D
Oesophagus
E
Trachea
Question 4
The function of an incisor is ...
A
Grind
B
Lubricate
C
There is no function
D
Chemically digest
E
Cut
Question 5
Correctly identify the labels in order 1 to 5 ...
A
Duodenum, ileum, jejunum, transverse colon, stomach
B
Duodenum, stomach, appendix, ileum, jejunum
C
Duodenum, stomach, transverse colon, ileum, jejunum
D
Duodenum, oesophagus, descending colon, sigmoid colon, ileum
E
Duodenum, stomach, transverse colon, appendix, ascending colon
Question 6
Which is not a major salivary gland?
A
Parotid
B
Sublingual
C
Submaxillar
D
Submandibular
Question 7
Which of the following is not present in salivary gland secretions?
A
Mucous
B
Amylase
C
Lipase
D
Water
E
HCl
Question 8
The name of the ninth cranial nerve is ...
A
Abducens
B
Vagus
C
Hypoglossal
D
Glossopetrosal
E
Glossopharyngeal
Question 9
Aspiration of bolus makes which pathological state more likely?
A
Pneumonia
B
COPD
C
Asthma
D
Congestive heart failure
E
Rheumatic fever
Question 10
Which of the below is not a region of the human stomach?
A
Pyloric antrum
B
Cardia
C
Fundus
D
Neck
E
Body
Question 11
Which is not an accessory organ of digestion?
A
Molar
B
Gallbladder
C
Pancreas
D
Duodenum
E
Parotid gland
Question 12
The cystic duct immediately drains into …
A
The right hepatic duct
B
The common bile duct
C
The major duodenal papilla
D
The hepatopancretic ampulla
E
The minor pancreatic duct
Question 13
Which of the below functions is CCK classically  implicated in?
A
Relaxation of the gallbladder
B
Increased nuclear transcription in chief cells
C
increase of appetite drive in the hypothalamus
D
Relaxation of the sphincter of Oddi
E
Relaxation of the pyloric sphincter
Question 14
What is the anatomic relevance of the ampulla of Vater?
A
A chamber guarding the heart
B
A type of blood vessel
C
A region of the spleen where red cells are recylced
D
A constituent of the lymphatic system where phagocytes migrate toward
E
A portion where the exocrine pancreas and gallbladder secretions drain
Question 15
Where is vitamin B12 absorbed?
A
Duodenum
B
Stomach
C
Proximal ileum
D
Jejunum
E
Terminal ileum
Question 15 Explanation: 
... told you it was a hint 😉
Question 16
What region, listed below, is the commencement of the large bowel?
A
Jejunum
B
Pylorus
C
Hepatic flexure
D
Caecum
E
Appendix
Question 17
What is the region of the large intestine immediately distal to the descending colon?
A
Rectum
B
Anus
C
Sigmoid colon
D
Transverse colon
E
Jejunum
Question 18
Where is feces stored?
A
Transverse colon
B
Rectum
C
Anus
D
Descending colon
E
Sigmoid colon
Question 19
The major therapeutic indication for administration of a potent diuretic is ... 
A
To render the patient constipated
B
A purgative
C
To increase urine output
D
To increase blood pressure
E
To increase satiety
Question 20
What is the major absorptive role of the large intestine?
A
Zinc
B
Water
C
Fat
D
Fat-soluble vitamins
E
Iron
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