1. The alveoli open into mammary tubules.
2. The tubules of each lobe join to form a lactiferous duct.
3. Several lactiferous ducts join to form a wider mammary ampulla
4. Mammary ampulla is connected to mammary duct.
Regarding 1,2,3 and 4 :
( a ) 1 is correct but 2,3 and 4 are incorrect
( b ) All are incorrect
( c ) 3 and 4 are incorrect; 1 and 2 are correct
( d ) 2 is incorrect but 1,3 and 4 are correct
