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WorksheetsGI Week 1
Total questions: 45
Worksheet time: 46mins
Obstruction of the left gastric artery will most likely decrease flow through:
Left gastro omental a.
Right gastro omental a.
Right gastric a.
Gastroduodenal a.
Esophageal aa
Which of the following is true regarding the jejunum vs the ileum?
Larger diameter
Shorter vasa recta
Many short arcades
Fewer plicae circulares
Many lymphoid nodules
The distal duodenum receives sympathetic innervation via:
T5-T9
T10-T12
L1-L2
L3-L4
S2-S4
Decreased activity of which of the following will most likely inhibit formation of this tissue?
Ameloblasts
Fibroblasts
Osteoblasts
Osteoclasts
Odontoblasts
Which of the following would you NOT expect to find in a parotid salvion?
Serous acini
Mucous acini
Intercalated ducts
Striated ducts
Excretory ducts
Cells located in the fundus of the stomach most likely produce:
Motilin
GIP
Ghrelin
Secretin
CCK
Presence of which of the following in unitary smooth muscle cells makes them behave similarly to cardiac myocytes?
Intercalated discs
Varicosities
Gap junctions
Autonomic neurons
Dense bodies
A mutation in which of the following proteins would most likely affect a smooth muscle cell's ability to sense Ca2+?
Troponin C
Troponin I
MLCP
Calmodulin
MLCK
A patient with chronic gastritis shows decreased gastric acid secretion due to decreased levels of a stimulatory hormone. This hormone is MOST similar another hormone that:
Stimulates pepsinogen and bicarbonate secretion
Stimulates pancreatic enzyme secretion
Simulates insulin release
Relaxes gut smooth muscle
Stimulates conversion of glycogen to glucose
A patient comes and is drooling all over the place. It's gross. Elevated nerve impulses from which of the following would most likely explain this?
Superior cervical ganglion
Vagus n.
Hyoglossal n.
Pterygopalatine ganglion
Celiac ganglion
At LOW flow rates, saliva is ______. At HIGH flow rates, saliva is _____.
hypertonic, isotonic
hypotonic, isotonic
isotonic, isotonic
isotonic, hypotonic
isotonic, hypertonic
Damage to which of the following will most likely present as the inability to relax the muscles of the esophagus?
Submucosal plexus
Meissner plexus
Auerbach plexus
CN IX
CN X
An elderly male presents in your clinic with inflamed gums, gingival recession, bleeding pockets, loose teeth, and breath like a dead moose. You swab his mouth and the resulting culture is black on blood agar. What is true regarding this pathogen?
Metabolizes carbohydrates
Gram +
Normal flora
No virulence factors
Not encapsulated
The pictured finding is most likely caused by:
Coxsackie A
Coxsackie B
Candida
HSV-2
VZV
A patient presents with a hard lump as pictured. You slice it open to reveal gritty pus filled with yellow granules. Lovely. You would most expect the following on blood agar:
No growth
Black colonies
Star-shaped colonies
Molar tooth colonies
Formation of a biofilm
Which of the following occurs due to incomplete closure of the abdominal musculature in development?
Omphalocele
Diaphragmatic hernia
Gastroschisis
Meckel diverticulum
Hirschsprung disease
A 2yo male presents with bloody stool and acute abdominal pain. This is most likely due to ectopic ______
gastric mucosa in the upper 1/3 of the esophagus
gastric mucosa in the small bowel
pancreatic tissue in the esophagus
pancreatic tissue in the stomach
gastric mucosa in the stomach
A 4 week old male presents with nonbilious vomiting and you note a firm, ovoid 1.5cm mass in the epigastrium with your skilled, osteopathic hands. The mother also mentions that she had been taking azithromycin for an infection shortly after his birth. What is the most likely cause of his presentation?
Atresia of the pylorus
Aganglionic distal bowel segment to mass
Aganglionic proximal bowel segment to mass
Hypertrophy of pylorus
Esophageal atresia
Which of the following is NON-nutritive?
2 glucose w/ a-1,4 bond
2 glucose w/ B-1,4 bond
1 galactose and 1 glucose w/ B-1,4 bond
1 glucose and 1 fructose w/ a-1, B-2 bond
Which of the following transports fructose?
SGLT1
GLUT1
GLUT2
GLUT3
GLUT5
Transport of glucose and galactose from the gut lumen is due primarily to a gradient established by:
SGLT1
Na+ ATPase
Na+, K+ ATPase
K+ ATPase
GLUT2
Which of the following is NOT a main fuel type?
Glucose
Free fatty acids
Lactate
Amino acids
Ketones
Which of the following is considered a macromineral?
Zn
Mg
I
Se
Mn
Which of the following is used as an index of muscle mass and caloric adequacy?
MAC
MAMC
TSF
BMI
TIBC
Commensals generally elicit:
T1
T2
Tregs
Th17
CTLs
Which of the following is least likely to be responsive to probiotics?
Ulcerative collitis
Pouchitis
Antibiotic associated diarrhea
Crohn's disease
Infectious diarrhea
What is true regarding ulcerative colitis vs crohn's?
Rectum is usually spared
String sign on radiograph
Frequent severe abdominal pain
Usually non-bloody diarrhea
Smoking is protective
Which of the following is inhibited by the presence of glycochenodeoxycholic acid? Check all that apply.
Pancreatic lipase
Phospholipase A2
Cholesterol ester hydrolase
Cholesterol esterase
Glycocholic acid
Absence of which of the following would impair degradation of chylomicrons?
Apo CII
Apo B48
Apo B100
Colipase
NPC1L1
Cholesterol 7-alpha-hydroxylase acts as a classic example of feedback inhibition, but what inhibits it?
Lithocholic acid
Deoxycholic acid
Glycochenodeoxycholic acid
Glycholic acid
Cholic acid
A patient presents with the pictured lesions and mentions that they have been present for 11 days now. The best course of action would be:
Acyclovir
Amoxicillin
Ceftriaxone
Nystatin
Resection
A pregnant woman presents with a rapidly growing lesion. Based on the pictured biopsy, this is most likely:
Fibroma
Mucocele
Pyogenic granuloma
Erythroplakia
Squamous cell carcinoma
A patient with a history of smoking has a mass from their parotid gland biopsied. Based on the pictured findings, this is:
Adenoid cystic carcinoma
Mucoepidermoid carcinoma
Squamous cell carcinoma
Warthrin tumor
Pleomorphic adenoma
Which of the following cannot be synthesized by humans?
Arginine
Tryptophan
Cysteine
Tyrosine
Pepsinogen is cleaved to its active form by:
HCl
Trypsinogen
Trypsin
Enteropeptidase
Pepsinogen
Which of the following conditions is most associated with increased risk of cholelithiasis?
Increased bile salts in bile, increased cholesterol secretion in bile
Increased bile salts in bile, decreased cholesterol secretion in bile
decreased bile salts in bile, increased cholesterol secretion in bile
decreased bile salts in bile, decreased cholesterol secretion in bile
A patient with a history of bulimia presents with painful hematemesis and the pictured finding. This is most likely:
Mallory-Weiss syndrome
Boerhaave Syndrome
CMV ulcer
Herpesvirus ulcer
GERD
A patient with a history of asthma presents with complaints of dysphagia, regurgitation, and occasional experiences "heart attacks." What treatment would be most effective?
PPI
Periodic surveillance
Photo-dynamic therapy
Dietary restrictions
Esophagectomy
A Caucasian American male with a history of smoking and a BMI of 35 has the pictured biopsy from the distal third of his esophagus. What is likely true?
Could progress to Barrett esophagus
Progressed from Plummer-Vinson Syndrome
Mass composed of mucin producing cells
Associated w/ HPV infections
Will likely metastasize to cervical lymph nodes
Moderate caloric deprivation is associated with
Elevated B cell function
Decreased B cell function
Elevated T cell function
Decreased T cell function
Increases of which of the following is most associated with Vitamin E?
IL-1
IL-2
IL-4
IL-6
TNF-a
What is a drawback of Vitamin D?
Increased cytokine production
Impaired wound healing
Increased autoimmune response
Decreased immunoglobulins
Increased inflammation
Omeprazole decreases H+ secretion by:
Inhibiting carbonic anhydrase
Excitation of D cells
Inhibition of D cells
Inhibition of H+, K+ ATPase
Inhibition of K+ leak channels
G cells are stimulated by:
ACh
GRP
Histamine
Gastric empyting
Epinephrine
Damage to which of the following cells is most likely to present as pernicious anemia?
Parietal
Chief
G
Mucous
ECL
