過去問ぽちぽちby KKM Studio

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. 1盲腸
  2. 2上行結腸
  3. 3下行結腸
  4. 4S状結腸
  5. 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。

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