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Carnivore Mammary Gland - Anatomy & Physiology (view source)
Revision as of 14:54, 28 July 2008
, 14:54, 28 July 2008no edit summary
<big><center>[[Reproductive System|'''BACK TO REPRODUCTIVE SYSTEM''']]</center></big>
<big><center>[[Reproductive_System#Lactation|'''BACK TO LACTATION''']]</center></big>
<big><center>[[Lactation_-_The_Mammary_Gland_-_Anatomy_%26_Physiology|'''BACK TO THE MAMMARY GLAND''']]</center></big>
= General Structure =
* Each mammary complex consists of '''5-20 mammary units''' and their corresponding ducts.
* Each mammary complex consists of '''5-20 mammary units''' and their corresponding ducts.
* Ducts open separately on the tip of the teat.
* Ducts open separately on the tip of the teat.
== Bitch ==
* Usually '''10 mammary complexes'''.
* Usually '''10 mammary complexes'''.
== Cat ==
* Usually '''8 mammary complexes'''.
* Usually '''8 mammary complexes'''.
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= Appearance =
* Juvenile/non-lactating: inconspicuous mammary complexes with short teats.
* Juvenile/non-lactating: inconspicuous mammary complexes with short teats.
* Varies among breeds and individuals.
* Varies among breeds and individuals.
= Blood Supply =
* Additional supply from mammary branches of the '''lateral thoracic artery'''.
* Additional supply from mammary branches of the '''lateral thoracic artery'''.
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= Lymphatics =
* Lymph from the cranial thoracic mammary complex drains into both the '''axillary''' and '''superficial cervical''' lymph node.
* Lymph from the cranial thoracic mammary complex drains into both the '''axillary''' and '''superficial cervical''' lymph node.
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= Complications =
* Changes characteristic of the cycle of the bitch include growth and proliferation of the mammary gland with each cycle even if the bitch does not conceive.
* Changes characteristic of the cycle of the bitch include growth and proliferation of the mammary gland with each cycle even if the bitch does not conceive.
* Frequent proliferation and subsequent [[Lactation_-_Involution_-_Anatomy_%26_Physiology|involution]] predisposes the bitch to [[General_Pathology_-_Neoplasia#Examples_of_Tumour_Types|mammary tumours]].
* Frequent proliferation and subsequent [[Lactation_-_Involution_-_Anatomy_%26_Physiology|involution]] predisposes the bitch to [[General_Pathology_-_Neoplasia#Examples_of_Tumour_Types|mammary tumours]].