Question

What is not true about the lactiferous ducts and sinuses? what is not true about the lactiferous ducts and sinuses? they produce milk for the newborn their function is performed only by females they are part of the mammary glands they are part of the uterus?

Answer 1

Lactiferous ducts

Explanation:

They are part of the uterus is not true about the lactiferous ducts and sinuses

• Lactiferous ducts are the 15-20 tubular drains for the lobes of the mammary glands which converge to open at the tip of the nipple; their distal ends are expanded to form lactiferous sinuses to store milk, which is produced gradually, until it can be released during bouts of nursing which stimulates an autonomic reflex and is assisted by oxytocin release for milk letdown
• Lactiferous sinus is the short oval enlarged dilation of each lactiferous duct in the breast tissue just beneath the nipple; in lactating females, this is a storage depot for milk, which is produced gradually by the alveoli, and will be expressed from the nipple by compression as the infant begins to nurse