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ARDMS BREAST REGISTRY EXAM AND STUDY GUIDE LATEST 2025
ACTUAL EXAM WITH COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS (100% VERIFIED ANSWERS) |ALREADY
GRADED A+| ||PROFESSOR VERIFIED|| ||BRANDNEW!!!||
Describe the anatomic location of the superficial fascia including
the superficial and deep layers within the breast. - ANSWER-- At
the breast the superficial fascia divides into the superficial and
deep layers, which provide an envelope containing all the breast
tissues.
- The superficial layer is located in the premammary layer.
- The deep layer is located in the retromammary space.
What is the smallest functional unit of the breast? - ANSWER-
Acini
Acini are considered the : - ANSWER-Milk producing gland
Approximately how many units are in each breast? - ANSWER-
There are hundreds of acini in each breast
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Each acini gives rise to its own duct, called ____. - ANSWER-The
terminal duct
What is a TDLU? - ANSWER-Terminal duct lobular unit
What structures make up the TCLU? - ANSWER-Approximately
30 acini (equaling a lobule) and its associated terminal ducts
make up the TDLU.
What is the clinical significance of the TDLU? - ANSWER-Nearly
all breast pathology originates here
What is another name for the mammary layer of the breast? -
ANSWER-Glandular or parenchymal layer of the breast
What is the axillary tail of spence? - ANSWER-The portion of
glandular tissue that extends from the upper outer quadrant of
each breast into the axillary region
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The mammary layer of the breast is composed of epithelial and
stromal tissues. State the function of each tissue type and name
several anatomic structures that make up each tissue type : -
ANSWER-- Epithelium is the functional tissue of the breast.
- Epithelial tissue consists of acini, TDLU's, lobules, lobes, and
any part of the lactiferous ducts (including the terminal ducts).
- Stroma is the supportive tissue or framework of the breast.
- Stromal tissue consists of both the interlobular fat and
connective tissue (including Cooper's ligaments, loose and dense
connective tissue).
What is the anatomic difference between the lobules and lobes of
the breast? - ANSWER-- Several lobules make up a lobe.
- Approximately 15 to 20 lobes make up each breast.
- One lactiferous duct arises from each lobe and travels toward
the nipple.
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State the different portions of the lactiferous duct of the breast
beginning deep and ending at the nipple : - ANSWER--
Interlobular terminal duct
- Extralobular terminal duct
- Interlobular duct
- Lactiferous sinus
- Collecting duct
Name the 3 layers of the lactiferous duct : - ANSWER--
Epithelium
- Myoepithelium
- Basement membrane or adventitia
What is the function of the myoepithelium ? - ANSWER-Propel
milk within the ducts toward the nipple
Which muscle is most anterior -- pectoralis major or minor? -
ANSWER-Pectoralis major lies anterior to the pectoralis minor
ARDMS BREAST REGISTRY EXAM AND STUDY GUIDE LATEST 2025
ACTUAL EXAM WITH COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS (100% VERIFIED ANSWERS) |ALREADY
GRADED A+| ||PROFESSOR VERIFIED|| ||BRANDNEW!!!||
Describe the anatomic location of the superficial fascia including
the superficial and deep layers within the breast. - ANSWER-- At
the breast the superficial fascia divides into the superficial and
deep layers, which provide an envelope containing all the breast
tissues.
- The superficial layer is located in the premammary layer.
- The deep layer is located in the retromammary space.
What is the smallest functional unit of the breast? - ANSWER-
Acini
Acini are considered the : - ANSWER-Milk producing gland
Approximately how many units are in each breast? - ANSWER-
There are hundreds of acini in each breast
,2|Page
Each acini gives rise to its own duct, called ____. - ANSWER-The
terminal duct
What is a TDLU? - ANSWER-Terminal duct lobular unit
What structures make up the TCLU? - ANSWER-Approximately
30 acini (equaling a lobule) and its associated terminal ducts
make up the TDLU.
What is the clinical significance of the TDLU? - ANSWER-Nearly
all breast pathology originates here
What is another name for the mammary layer of the breast? -
ANSWER-Glandular or parenchymal layer of the breast
What is the axillary tail of spence? - ANSWER-The portion of
glandular tissue that extends from the upper outer quadrant of
each breast into the axillary region
,3|Page
The mammary layer of the breast is composed of epithelial and
stromal tissues. State the function of each tissue type and name
several anatomic structures that make up each tissue type : -
ANSWER-- Epithelium is the functional tissue of the breast.
- Epithelial tissue consists of acini, TDLU's, lobules, lobes, and
any part of the lactiferous ducts (including the terminal ducts).
- Stroma is the supportive tissue or framework of the breast.
- Stromal tissue consists of both the interlobular fat and
connective tissue (including Cooper's ligaments, loose and dense
connective tissue).
What is the anatomic difference between the lobules and lobes of
the breast? - ANSWER-- Several lobules make up a lobe.
- Approximately 15 to 20 lobes make up each breast.
- One lactiferous duct arises from each lobe and travels toward
the nipple.
, 4|Page
State the different portions of the lactiferous duct of the breast
beginning deep and ending at the nipple : - ANSWER--
Interlobular terminal duct
- Extralobular terminal duct
- Interlobular duct
- Lactiferous sinus
- Collecting duct
Name the 3 layers of the lactiferous duct : - ANSWER--
Epithelium
- Myoepithelium
- Basement membrane or adventitia
What is the function of the myoepithelium ? - ANSWER-Propel
milk within the ducts toward the nipple
Which muscle is most anterior -- pectoralis major or minor? -
ANSWER-Pectoralis major lies anterior to the pectoralis minor
