IBCLC Exam Study Guide (800 +Terms and
Questions) Complete Guide for Exam Prep
Where are montgomerys tubercules located - ✔✔Around the areola
The Montgomery tubercules contain - ✔✔Ductal openings of the sebaceous and lactiferous
glands and sweat glands
What happens to Montgomery glands in pregnancy - ✔✔They enlarge and resemble small ,
raised pimples
The Montgomery glands secrete ? - ✔✔A substance that lubricates and protects the nipple
Some secrete a small amount of milk
Secretions of the Montgomery gland may produce ? - ✔✔A scent to help the infant locate
the nipple
Parenchyma are - ✔✔Functional parts of the breast
Alveoli are ? - ✔✔( acini) are the basic components of the mature mammary gland .
Secretory cells in which the milk is produced
Lactocytes ( specialized epithelial cells ) that line the interior of the alveolus do ? -
✔✔Absorb nutrients , immunoglobulin, and hormones from the mothers bloodstream to
compose milk
Prolactin receptor sites in the lactocytes Allow? - ✔✔Prolactin to be absorbed from the
blood and enter into the alveoli to stimulate milk production
,Myoepithelial cells do what ? - ✔✔Encase the alveoli and contact in response to oxytocin to
eject milk into ductules
How many lobes does the breast contain - ✔✔15-25 that carry the milk through the ductules
from the alveoli to the nipple
Each lobe contains how many alveoli - ✔✔10-100 in an intricate system of ductules that
branch out from the lobes to converge into lactiferous ducts behind the nipple
Ultrasound of lobes shows? - ✔✔Connections between lobes
What do ducts do in response to milk ejection - ✔✔Temporarily widen
What do ducts do in response to duct drainage - ✔✔Narrow
What happens to milk that is not removed - ✔✔It flows backward up the collecting ducts
Lactiferous ducts lead to - ✔✔5-10 openings in the nipple
Stroma - ✔✔Supporting tissues of the breast
Stroma include - ✔✔Connective tissue , fat tissue, blood vessels , nerves, and lymphatics
Coopers ligaments are - ✔✔Suspensory ligaments running vertically through the breast
What do coopers ligaments do - ✔✔Attach the deep layer of subcutaneous tissue to the
dermis layer of the skin
,The breast is highly - ✔✔Vascular
What supplies 60%of blood to the breast - ✔✔Internal mammary artery
What supplies 30%of blood to the breast - ✔✔Lateral thoracic artery
Blood vessels within the breast do ? - ✔✔Enlarge
What stimulates growth of the ducts - ✔✔Surges of estrogen
What causes glandular tissue to expand ? - ✔✔Surges of progesterone
The lymphatic system collects ? - ✔✔Excess fluids from tissue spaces, bacteria, and cast off
cell parts
The lymphatic system drains where ? - ✔✔The axillary lymph nodes mainly
Breast innervation derives from mainly where ? - ✔✔Branches of the 4th, 5th, and 6th
intercostal nerves
Where is nerve supply sparse ? - ✔✔The innermost parts of the breast
The fourth intercostal nerve - ✔✔Penetrates the posterior aspect of the breast
The 4th intercostal nerve supplies the greatest amount of sensation to the areola where ? -
✔✔4:00 on the left breast and 8:00 on the right breast
, How many branches does the 4th intercostal nerve divide into - ✔✔5 branches and it
becomes more superficial as it reaches the areola
The Lowermost branch of the 4th intercostal nerve penetrates the areola where ? - ✔✔5:00
on left breast and 7:00 on the right
Trauma to the 4th intercostal nerve might result in - ✔✔Some loss of sensation in the breast
If the lowermost branch of the 4th intercostal nerve is severed what happens ? - ✔✔Loss of
sensation to the nipple and areola may result
Aberrant sensory or autonomic nerve distributions in the nipple/areola complex could -
✔✔Affect milk ejection reflex and secretion of prolactin and oxytocin
Trauma or severing of the 4th intercostal nerve could result from - ✔✔Breast augmentation
or reduction surgery
How much does a non pregnant mature breast weigh - ✔✔200g
How much does a pregnant near term breast Weigh - ✔✔400-600g
How much does a lactating breast weigh - ✔✔600-800g
Asymmetry is common . Which breast is often larger - ✔✔Left larger than right often
Hypermastia - ✔✔Presence of an accessory mammary gland - accessory or supernumerary
nipple develops along the milk line between the axilla and groin
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Examsplug. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.49. You're not tied to anything after your purchase.