n326Breast Assessment

n326Breast Assessment - Breast Assessment N326 Breast...

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Unformatted text preview: Breast Assessment N326 Breast Assessment Breast Anatomy Located between 2 nd and 6 th ribs Extends from side of sternum to midaxillary line Tail of Spence: superior lateral corner of breast tissue, extends into axilla. Site of most common breast CA Nipple: rough, round, protuberant, wrinkled, indented with tiny milk openings Areola: 1-2cm radius surrounding nipple. Contain Montgomerys glands Divided into 4 quadrants: upper outer, upper inner, lower outer, lower inner Breast Assessment Breast Composition Glandular tissue: Lobules contain clusters of alveoli that produce milk Fibrous tissue: suspensory ligaments/ Coopers ligaments fibrous bands extending vertically from surface to attach on chest wall support breast Adipose tissue Breast Assessment Lymph System Central Axillary Node: high up in middle of axilla Pectoral ( Anterior) Node: lateral edge of pectoralis major muscle; inside anterior axillary fold Subscapular (Posterior) Node: posterior axillary fold Lateral Node: along humerus, inside upper arm Breast Assessment Developmental Considerations Supernumerary nipple: extra nipple develops along mammary ridge Adolescent Estrogen stimulates breast changes puberty Breast development: average 8-9 blacks, 10 white Asymmetry is common Tanner Staging: 5 stages of breast development; full development takes about 3 yrs Menarche occurs 2 yrs after breast buds Menstrual cycle changes: increased nodularity from midcycle to menses: feel full, tight, heavy, sore Breast Assessment Developmental Considerations Pregnancy Larger and more nodular during 2 nd month Colostrum (precursor of milk) may be expressed by 4 th month Milk production begins after 3 days post...
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n326Breast Assessment - Breast Assessment N326 Breast...

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