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16 Cards in this Set
- Front
- Back
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Where do the cranial thoracic mammary glands drain?
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axillary and sometimes superficial cervical ln's
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Where do the caudal thoracic mammary glands drain?
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Axillary ln's
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Where do the cranial abdominal mammary glands drain?
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Axillary and superficial inguinal lns --> medial iliac lns
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Where do the caudal abdominal mammary glands drain?
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Superficial inguinal lns--> medial iliac lns and sometimes medial iliac ln's
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Where do the inguinal mammary glands drain?
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superficial inguinal ln's --> medial iliac lns
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What is a mammary gland?
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A glandular complex associated with one teat (papilla mammae).
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How do mammary glands develop?
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A modified skin gland developed from linear epidermal thickening, the mammary ridge, visible on the lateral surface of the trunk in the 14mm embryo. (length of ridge differs between species)
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How do they displace as the embryo grows?
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As the dorsal part of trunk grows, mammary ridge remains relatively ventrally.
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How many ducts does the dog have?
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8-14
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How many ducts does the cat have?
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5-7
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How does the milk drain?
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Alveolar ducts --> lactiferous ducts --> lactiferous sinus (fusiform enlargement of lactiferous duct in carnivores)
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What is the opening from the lactiferous sinus to the exterior called?
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Papillary duct aka. teat canal
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How many mammary glands are there usually?
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5 pairs in the bitch
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Mets from glands 1 and 2 (cranial thoracic and caudal thoracic) go where?
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axillary and sternal lns
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Mets from glands 4 and 5 (caudal abdominal and inguinal glands) go where?
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superficial inguinal ln
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Mets from gland 3 (cranial abdominal) go where?
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Mostly to axillary lymph node, but sometimes superficial inguinal
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