OCS: CE4 Dump on Weaknesses
2025/2026 Exam Questions and Answers
| A+ Score Assured
Number 01: A 52-year-old obese male complains of episodic burning
epigastric pain one to two hours following spicy meals. The pain is made
worse by lying down and can be lessened with OTC antacids. Which of the
following pathologies most likely explains this situation?
a) hyperactive pyloric sphincter
b) weakened lower esophageal sphincter
c) weakened upper esophageal sphincter
d) dysfunctional sphincter of Oddi
,e) autoimmune loss of parietal cells - 🧠ANSWER ✔✔Answer: b) weakened
lower esophageal sphincter
Number 02: Which of the following transitions is known to occur at the "Z-
line" in a healthy individual:
a) Conversion of keratinized to non-keratinized stratified squamous
epithelium
b) Conversion of non-keratinized stratified squamous to an intestinal type
epithelium
c) Conversion of non-keratinized stratified squamous to a gastric type
epithelium
d) Conversion of intestinal type epithelium to a non-keratinized stratified
squamous epithelium
e) Conversion of Colonic epithelium to a keratinized stratified squamous
epithelium - 🧠ANSWER ✔✔Answer: c) Conversion of non-keratinized
stratified squamous to a gastric type epithelium
Number 03: Parietal cells in the stomach are known to contain receptors for
which of the following substances:
,a) Cholecystokinin
b) Acetylcholine
c) Somatostatin
d) Secretin
e) Serotonin - 🧠ANSWER ✔✔Answer: b) Acetylcholine
Number 04: The enteroendocrine most responsible for initiating the
production of bicarbonate from the centroacinar cells would be:
a) Gastrin
b) Secretin
c) Motilin
d) CCK
e) Somatostatin - 🧠ANSWER ✔✔Answer: b) Secretin
Number 05: A 21-year-old college student, in otherwise good health, and
his dorm mates spend a long weekend binge drinking large amounts of
beer and hard liquor following an examination. At the end of this three-day
event he passed out and was brought to the Emergency Department. A
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
, liver biopsy was performed on this unconscious patient. Which of the
following is the most likely finding:
a) Massive inflammatory infiltrate in the portal triads of the liver
b) Bridging fibrosis between liver lobules
c) Large numbers of apoptotic hepatocytes in zone 3 of the liver lobule
d) Micro- and macro-vesicular deposits in perivenular hepatocytes
e) Extensive proliferation of Kupffer cells in the hepatic sinusoids -
🧠ANSWER ✔✔Answer: d) Micro- and macrovesicular deposits in
perivenular hepatocytes
Number 06: The cell most responsible for responding to pro-inflammatory
cytokines and producing bridging fibrosis in the liver would be:
a) Kupffer cells
b) Endothelial cells
c) Ito cells
d) Mesothelial cells
2025/2026 Exam Questions and Answers
| A+ Score Assured
Number 01: A 52-year-old obese male complains of episodic burning
epigastric pain one to two hours following spicy meals. The pain is made
worse by lying down and can be lessened with OTC antacids. Which of the
following pathologies most likely explains this situation?
a) hyperactive pyloric sphincter
b) weakened lower esophageal sphincter
c) weakened upper esophageal sphincter
d) dysfunctional sphincter of Oddi
,e) autoimmune loss of parietal cells - 🧠ANSWER ✔✔Answer: b) weakened
lower esophageal sphincter
Number 02: Which of the following transitions is known to occur at the "Z-
line" in a healthy individual:
a) Conversion of keratinized to non-keratinized stratified squamous
epithelium
b) Conversion of non-keratinized stratified squamous to an intestinal type
epithelium
c) Conversion of non-keratinized stratified squamous to a gastric type
epithelium
d) Conversion of intestinal type epithelium to a non-keratinized stratified
squamous epithelium
e) Conversion of Colonic epithelium to a keratinized stratified squamous
epithelium - 🧠ANSWER ✔✔Answer: c) Conversion of non-keratinized
stratified squamous to a gastric type epithelium
Number 03: Parietal cells in the stomach are known to contain receptors for
which of the following substances:
,a) Cholecystokinin
b) Acetylcholine
c) Somatostatin
d) Secretin
e) Serotonin - 🧠ANSWER ✔✔Answer: b) Acetylcholine
Number 04: The enteroendocrine most responsible for initiating the
production of bicarbonate from the centroacinar cells would be:
a) Gastrin
b) Secretin
c) Motilin
d) CCK
e) Somatostatin - 🧠ANSWER ✔✔Answer: b) Secretin
Number 05: A 21-year-old college student, in otherwise good health, and
his dorm mates spend a long weekend binge drinking large amounts of
beer and hard liquor following an examination. At the end of this three-day
event he passed out and was brought to the Emergency Department. A
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
, liver biopsy was performed on this unconscious patient. Which of the
following is the most likely finding:
a) Massive inflammatory infiltrate in the portal triads of the liver
b) Bridging fibrosis between liver lobules
c) Large numbers of apoptotic hepatocytes in zone 3 of the liver lobule
d) Micro- and macro-vesicular deposits in perivenular hepatocytes
e) Extensive proliferation of Kupffer cells in the hepatic sinusoids -
🧠ANSWER ✔✔Answer: d) Micro- and macrovesicular deposits in
perivenular hepatocytes
Number 06: The cell most responsible for responding to pro-inflammatory
cytokines and producing bridging fibrosis in the liver would be:
a) Kupffer cells
b) Endothelial cells
c) Ito cells
d) Mesothelial cells
