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多选题
About the structure of kidney, which of the following descriptions are correct?
A
On the coronary section, the kidney is divided into renal cortex (肾皮质) and renal medulla (肾髓质)
B
The renal column (肾柱) is a part of the renal medulla.
C
The tips of renal (肾锥体) pyramids form the renal papillae (肾乳头), which have papillary foramina
D
Two of three minor renal calices (肾小盏) converge into one major renal calices.
E
The renal pelvis (肾盂) becomes narrow and then form the ureter.
答案解析
正确答案：ACDE
