38th Exam (Jan 2026) Afternoon Q69 Kaigo Fukushishi
Question (original Japanese)
次のうち、健康な成人において、横行結腸の次に便が通過する部位として、最も適切なものを1つ選びなさい。
- 1盲腸
- 2上行結腸
- 3下行結腸
- 4S状結腸
- 5直腸
Show answer
Correct answer 3
Key pointThe large intestine goes: cecum → ascending → transverse → descending → sigmoid colon → rectum.
Explanation
Contents of the large intestine move in the order cecum → ascending colon → transverse colon → descending colon → sigmoid colon → rectum, so after the transverse colon comes the descending colon.
- 1: The cecum is the beginning of the large intestine, before the ascending colon, so it is incorrect.
- 2: The ascending colon comes before the transverse colon, so it is incorrect.
- 4: The sigmoid colon comes after the descending colon, so it is incorrect.
- 5: The rectum is the last part of the large intestine, just before the anus, so it is incorrect.
Explanation in Japanese
大腸の内容物は、盲腸→上行結腸→横行結腸→下行結腸→S状結腸→直腸の順に進むため、横行結腸の次は下行結腸です。
- 1:盲腸は大腸の始まりで、上行結腸より前なので誤り。
- 2:上行結腸は横行結腸の手前なので誤り。
- 4:S状結腸は下行結腸の次なので誤り。
- 5:直腸は大腸の最後で、肛門の手前なので誤り。