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Ch. 28 The Reproductive System
Martini - Fundamentals of Anatomy & Physiology 11th Edition
Martini, Nath, Bartholomew11th EditionFundamentals of Anatomy & PhysiologyISBN: 9780136874089당신이 사용하는 게 아니라요?교과서 변경
27장, 문제 13

Trace the path of milk flow from its site of production to outside the female.

검증된 단계별 안내
1
Start by identifying the site of milk production, which is the alveoli within the mammary glands. These small sac-like structures are lined with milk-secreting epithelial cells.
Next, understand that milk flows from the alveoli into small channels called lactiferous ducts. These ducts collect milk from multiple alveoli.
The lactiferous ducts then converge and widen into lactiferous sinuses, which serve as reservoirs where milk is stored temporarily before release.
From the lactiferous sinuses, milk travels through the nipple via the openings of the lactiferous ducts, which are located at the tip of the nipple.
Finally, milk exits the female body through the nipple openings during the process of breastfeeding or milk ejection, which is stimulated by the hormone oxytocin.

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이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Mammary Gland Anatomy

The mammary gland is the site of milk production, consisting of alveoli where milk is synthesized by specialized epithelial cells. Understanding its structure, including lobules and ducts, is essential to trace milk flow.
추천 영상:
2:54
Mammary Glands

Milk Ejection and Transport

Milk moves from alveoli into small ducts, then larger ducts, and finally into the gland cistern. The process involves milk ejection reflex triggered by oxytocin, which contracts myoepithelial cells to push milk through the duct system.
추천 영상:
가이드 코스
02:37
Active Transport

Teat Canal and Milk Exit

From the gland cistern, milk flows into the teat cistern and then through the teat canal, which acts as a passageway to the outside. The teat sphincter controls milk release and prevents contamination, completing the milk flow path.
추천 영상:
가이드 코스
02:28
Exocytosis Allows Exiting from the Cell