What is a placental cotyledon?
Correct Answer: All branches from one stem villi
Description: Each of the truncal or main stem villi and their ramifications constitutes a placental lobule or cotyledon. Each lobule is supplied with a single truncal branch of chronic aery. And each lobule has a single vein so that lobules constitute functional units of placental architecture. Ref: Williams 24e pg 94.
Category:
Anatomy
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