下列既属于外分泌腺又属于内分泌腺的是（）。

2023-08-09

A.垂体
B.肾上腺
C.胰腺
D.甲状腺

参考答案：C

本题考查的是人体主要的内分泌腺知识点。

C项，人体的内分泌腺有甲状腺、肾上腺、垂体、胰岛等。内分泌腺无排泄管，所分泌的高效能物质称为激素。它直接渗入毛细血管，经血液循环流至全身。外分泌腺有唾液腺、汗腺、皮脂腺、肝脏、胰腺等（胰腺分为内分泌部和外分泌部，胰的大部分属于外分泌部，但是胰岛属于内分泌部）。外分泌腺有排泄管，称腺导管，其分泌物通过腺导管输送到相应的组织或器官发挥其调节作用。故正确。

综上，正确答案为C。

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