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Rat Reproduction - Anatomy & Physiology (view source)
Revision as of 14:17, 22 July 2008
, 14:17, 22 July 2008→Mammary Gland
== 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.