Mammary glands
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Mammary Glands notes, Study Guides, Projects, Research of Medical Sciences
The anatomy of mammary glands, including their extent, mammary bed, nipple, areola, blood supply, lymphatic drainage, and changes during pregnancy, weaning, and postmenopause. It also explains the lymphatic drainage of mammary glands and the anatomical origin of common breast lesions. a detailed description of the structure of mammary glands and their changes during different stages of life.
Typology: Study Guides, Projects, Research
2022/2023
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Mammary glands
Mammary glands
(^) Modified sweat gland in sup fascia (^) No connective tissue covering. (^) Accessory female reproductive organ.
Areola 7 Nipple-areola-complex. (1) Papilla. (2) Areola. (3)
STRUCTURE
- (^) Glandular portion with parenchyma
- (^) Connective tissue i.e stroma
Fibrous tissue
Fatty tissue
Suspensory lig of cooper
8
Although traditionally the breast is described as containing 15 to 20 distinct lobes, observation reveals that there are usually approximately six openings onto the nipple (galactophores), as some of the lobes join at the level of the collecting duct or even into the lactiferous sinus. Otherwise, there is no direct anatomical connection between the various lobes.
Mammary Gland: Structure
Suspensory ligament running from skin to P Major Alveoli opening into 1 4
15 BLOOD SUPPLY
1. Internal thoracic artery (subclavian) (^) perforating br – 2,3,4 ICS
- Br from Axillary : (^) Sup thoracic Art (^) Thoraco acromial – pectoral br (^) Lat thoracic art (^) Subscapular art 2. Intercostal art – (^) 2,3,4th ICS lat br 2 nd^ IC Art largest br – (^) supply upper breast, Nipple and areola)
Communication via Post IC vein, Azygous and Internal vert plexus which in turn communicate with transverse and sagittal sinus spreads malignancy to abdominal organs, brain, vertebrae, ribs and skull
VENOUS DRAINAGE
(^) Superficial and deep veins (^) Circulus venosus (part of superficial vein): sub areolar plexus of vein (^) Superficial and deep vein drain into (^) Int mammary V (^) Axillary V (^) Post IC vein – which drain into Azygous vein
Lymphatic drainage Of Mammary gland