Question

Milk secreted from the cells of alveoli of mammary lobes reaches nipple through lactiferous duct (L), mammary duct(M), mammary tubule (T) and mammary ampulla (A) in the following order

• A. TMAL
• B. MTLA
• C. MTAL
• D. ATML

Answer 1

The correct option is A TMAL

• Mammary glands or breasts are modified sweat glands that lie over the pectoral muscles. Each breast has a broad multiporous tip called nipple for the release of milk. A circular pigmented area called areola lies below it. Each breast contains 15-20 glandular lobes separated from one another by dense connective tissue and adipose tissue. Each lobe is further made of many lobules having glandular or secretory alveoli.

• The cells of alveoli produce milk which is stored in the cavities or lumens of alveoli. Alveoli open into mammary tubules and then into mammary ducts. Mammary ducts form a mammary ampulla from which a lactiferous duct develops. Each lobe produces a separate lactiferous duct. The various lactiferous ducts open at the nipple by separate pores.

So, the correct answer is 'TMAL'.