PRODUCTION AND UTILIZATION OF MILK (b) 题 61000 VESSE ALVEOLUS CSTFRN MILKFAT ORODLETS RTFRLAL BLOO CAHLLARES MITCCHONDRION Figure 1.2 Milk-producing tissue of a cow, shown at progressively larger scale longitudinal section of one of the four quarters of a mammary gland;(b) arrangement of alveoli and the duct system that drains them; (c)single alveolus consisting of an mmary gland; (d)a lactating cell; part of the cell membrane becomes the membrane at droplets; dark circular bodies in the va Golgi apparatus are protein particles, which are discharged into the lumen. (From Patton, 1969)PRODUCTION AND UTILIZATION OF MILK 5 WPI.LAR1ES C0:NECTIbE ISSUE N LK PRVEIN GOLGi \ PPAHATUS Figure 1.2 Milk-producing tissue of a cow, shown at progressively larger scale. (a) A longitudinal section of one of the four quarters of a mammary gland; (b) arrangement of the alveoli and the duct system that drains them; (c) single alveolus consisting of an elliptical arrangement of lactating cells surrounding the lumen, which is linked to the duct system of the mammary gland; (d) a lactating cell; part of the cell membrane becomes the membrane covering fat droplets; dark circular bodies in the vacuoles of Golgi apparatus are protein particles, which are discharged into the lumen. (From Patton, 1969.)