objective 17 Flashcards
(35 cards)
present in both males and females
are an accessory reproductive organ
produce milk for nourishing the newborn
mammary glands
- Lie anterior to the pectoralis major and serratus anterior
muscles. - Located between the 2nd and 6th ribs
- Extend from the side of the sternum to midaxillary line
- Tail of Spence
breasts
- Just below the center of the breast
- Rough, round, usually protuberant, surface looks wrinkled
- Indented with tiny milk duct openings
nipple
- Surrounds the nipple, 1-2 cm radius
- Contains Montgomery glands
- Smooth muscle fibers that cause nipple erection when
stimulated
areola
- Contains 15-20 lobes radiating from the nipple
- Lobes are composed of lobules
- Alveoli are within each lobule and produce milk
- Each lobe empties into a lactiferous duct
glandular tissue
form a collecting duct system that converges at the nipple
lactiferous ducts
located behind
the nipple) which are reservoirs for storing milk
ampullae
- Fibrous bands that extend vertically from the surface to attach
on the chest wall muscles - Support breast tissue
- Become contracted in cancer of the breast (causes pits or
dimples in the overlying skin)
suspensory ligaments
- Where the lobes are embedded
- Layers of subcutaneous and retromammary fat - provide most of
the bulk of the breast
adipose tissue
what are the 4 quadrants of the breast?
upper outer
lower outer
upper inner
lower inner
what are the 4 groups of axillary nodes present in the breasts?
central axillary node
pectoral
subscapular
lateral
what are the developmental considerations for fetus?
- During embryonic life, “milk lines” are present.
- Supernumerary nipple - extra nipple may persist and is visible
somewhere along the track of the mammary ridge
what are the developmental considerations for infants?
- At birth, the only breast structures present are lactiferous ducts within
the nipple - No alveoli have developed
- In neonates, breasts may be enlarged and visible due to maternal
estrogen, may secrete a clear or white fluid (“witch’s milk”) - Little change occurs until puberty
what are the developmental considerations for adolescents?
- At puberty the estrogen hormones stimulate breast changes
- Breasts enlarge, duct system grows and branches, masses of small solid
cells develop at the duct endings (potential alveoli) - One breast may grow faster than the other
- Temporary asymmetry may cause distress, some reassurance is necessary
- Tenderness in the developing breast is common
- Age of onset varies widely
- Breasts develop in 5 stages according to Tanner staging (Table 18.1)
- Thelarche (beginning of breast development) precedes menarche
(beginning of menstruation) by about 2 years
what are the developmental considerations for pregnency?
- Breast changes start during the second month
- Breasts enlarge and feel more nodular
- Nipples are darker, larger, and more erectile
- Areolae become larger and darker as pregnancy progresses
- Tubercles become more prominent
- Venous pattern is prominent over the skin surface
- After the 4th month, colostrum may be expressed
- Lactation begins 1-3 days postpartum
- Even in non-pregnant women, breasts change during the monthly
menstrual cycle due to hormones.
what are the developmental considerations for older women?
- After menopause, secretion of estrogen and progesterone from the
ovaries decreases – atrophy of breast glandular tissue which is replaced
by fibrous connective tissue - Atrophy of the fat envelope – begins in the middle years and becomes
very apparent in the age range of 80’s to 90’s - Breasts sag and droop – due to decreased breast size and elasticity
(kyphosis accentuates this appearance) - Inner structures feel more prominent, thickening of the inframammary
ridge at the lower breast - Easier to palpate lumps in the older woman’s breast
- Decrease in axillary hair occurs
what are the developmental considerations for male breasts?
- Rudimentary structure – thin disk of undeveloped tissue
underlying the nipple - Areola well developed, nipple very small
- Gynecomastia
- Breast tissue temporarily enlarges
- Usually unilateral and temporary
- Reassurance necessary due to body image concerns
- Occurs commonly in adolescence; may appear in older men
due to testosterone deficiency
how do we prep for assessment breasts?
- Position the client sitting up and facing the examiner
- Use an alternative draping method – use a short gown,
open at the back, and lift it up to the woman’s shoulders
during inspection - During palpation – when the woman is supine, cover
one breast with the gown while examining the other
what equipment do u need?
small pillow, cm ruler
what are the normal and abnormal findings for general appearance of breasts?
- Common variation – slight asymmetry in size (left breast being slightly
larger than the right) - Abnormal – sudden increase in breast size of one breast indicates
inflammation or new growth
what are the normal and abnormal findings of the skin of the breast?
- Normal: smooth, even colour, no lesions, no edema
- Variation: fine blue vascular network normally visible during pregnancy,
pale striae often follow pregnancy - Abnormal – hyperpigmentation, redness and inflammation, unilateral
dilated superficial veins in a non-pregnant woman, edema (peau
d’orange) - Peau d’orange – skin with an ‘orange peel’ appearance, caused by
edema
what are the normal and abnormal findings of the nipple?
- Normal: symmetrical, same plane on the two breasts, protrusion
- Variation
- Some nipples are flat or inverted. It is important to determine if this is
a recent nipple inversion or if the inversion has been present for many
years/since puberty - Normal nipple inversion – can be unilateral or bilateral and usually the
nipple can be pulled out (it is not fixed) - Supernumerary nipple
- Abnormal: deviation in nipple pointing, recent nipple retraction (signifies
acquired disease), discharge (especially in the presence of a breast mass)
what are the maneuvers to screen for retraction?
- Ask the female client to change positions for assessment of
skin retraction - Ask the client to lift her arms slowly over her head (both
breasts should move up symmetrically) - Ask the client to push her hands unto her hips
- Ask the client to push her two palms together
- These movements contract the pectoralis major muscle
- Both breasts are lifted slightly
- Note any signs of retraction
what are the normal and abnormal findings of pendulous breasts?
- Abnormal: note any fixation to the chest wall or skin
retraction