proctodaeum
/prok-tuh-dee-uhm/US // ˌprɒk təˈdi əm //
栉风沐雨,肛门科,肛门部,肛门
Definitions
n.名词 noun
- 1
plural proc·to·dae·a [prok-tuh-dee-uh]. /ˌprɒk təˈdi ə/.
- : proctodeum.
Examples
The third or outermost chamber, the proctodaeum, is closed externally by the sphincter ani; the orifice is quite circular.
Renal excretory caeca (Malpighian tubes) are developed from the proctodaeum (not from mesenteron as in scorpion and Amphipoda).
Renal caecal tubes (Malpighian tubes) open into the proctodaeum.
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