4,503
edits
Changes
Jump to navigation
Jump to search
Rat Reproduction - Anatomy & Physiology (view source)
Revision as of 14:17, 22 July 2008
, 14:17, 22 July 2008→Mammary Gland
Line 93:
Line 93:
== Mammary Gland ==
== Mammary Gland ==
−* 5 pairs of teats.
+* 6 pairs of mammary glands.
+* '''Cervical gland''' is rudimentary
+* '''Thoracic gland''' is diffuse.
+** Contains 3 nipples
+** Surrounds the base of the forelimb.
+* '''Abdominal gland''' only marginally developed.
+* '''Inguinal gland''':
+** Surrounds the base of the hindlimb
+** Contains 3 nipples
+* Thoracic and inguinal glands act as two discrete complexes, separated by a space just behind the ribs.
+* During lactation, the thoracic glands expand rostrally as far as the parotid and mandibular glands.
+** Cranially and medially over the upper forelimb and along the lateral thoracic wall.
+* Inguinal gland covers the lateral abdominal wall back to the stifle and anal region.
+* At the base of each teat the transition zone between hairless and hair has large sebacious glands.