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ARDMS Breast Registry Exam and Study Guide 2025 | Practice
Questions, Preparation Tips & Certification Resources 450
QUESTIONS AND CORRECT DETAILED ANSWERS
Description
ARDMS Breast Registry Exam 2025
ARDMS Breast Sonography study guide
Breast registry practice questions ARDMS
ARDMS breast exam preparation tips
How to pass ARDMS breast registry exam
ARDMS breast sonography practice test
ARDMS breast registry exam review book
ARDMS certification breast exam prep
Best study guide for ARDMS breast exam
ARDMS breast exam sample questions
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
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).
,2|Page
- 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.
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
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
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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
What is the scanning significance of visualizing the pectoralis muscles ? - ANSWER-When the pectoral
muscles are visualized on ultrasound, the sonographer is sure to have imaged all of the breast tissue and
can interrogate muscle invasion from a breast lesion
Which quadrant of the breast is glandular tissue slightly more prominent? - ANSWER-- The upper outer
quadrant
- Therefore, a larger percentage of breast cancers are found here
A mass in the 2:00 position of the left breast corresponds with what quadrant? - ANSWER-Upper outer
quadrant
A mass in the 2:00 position of the right breast corresponds with what quadrant? - ANSWER-Upper inner
quadrant
, 4|Page
A mass in the 8:00 position of the left breast corresponds with what quadrant? - ANSWER-Lower inner
quadrant
A mass in the 8:00 position of the right breast corresponds with what quadrant? - ANSWER-Lower outer
quadrant
What is the milk line? - ANSWER-The milk line represents an anatomic region of the body where portions
of breast tissue may develop
The milk line is located : - ANSWER-From the axilla to the inguinal region on both right and left sides of
the body
Amastia : - ANSWER-Absence of one or both breasts
Polymastia : - ANSWER-Accessory breast or more than 2 breasts
Athelia : - ANSWER-Absence of the nipple
Polythelia : - ANSWER-Accessory nipple
Amazia : - ANSWER-Absence of the breast tissue with development of the nipple
Most common developmental anomaly of the breast : - ANSWER-Polythelia
What are the 2 main arterial supplies of the breast? - ANSWER-- Lateral thoracic artery
- Internal mammary artery (internal thoracic artery)
What are the 2 secondary arterial supplies of the breast? - ANSWER-- Thoracoacromial artery
- Intercostal artery
ARDMS Breast Registry Exam and Study Guide 2025 | Practice
Questions, Preparation Tips & Certification Resources 450
QUESTIONS AND CORRECT DETAILED ANSWERS
Description
ARDMS Breast Registry Exam 2025
ARDMS Breast Sonography study guide
Breast registry practice questions ARDMS
ARDMS breast exam preparation tips
How to pass ARDMS breast registry exam
ARDMS breast sonography practice test
ARDMS breast registry exam review book
ARDMS certification breast exam prep
Best study guide for ARDMS breast exam
ARDMS breast exam sample questions
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
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).
,2|Page
- 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.
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
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
,3|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
What is the scanning significance of visualizing the pectoralis muscles ? - ANSWER-When the pectoral
muscles are visualized on ultrasound, the sonographer is sure to have imaged all of the breast tissue and
can interrogate muscle invasion from a breast lesion
Which quadrant of the breast is glandular tissue slightly more prominent? - ANSWER-- The upper outer
quadrant
- Therefore, a larger percentage of breast cancers are found here
A mass in the 2:00 position of the left breast corresponds with what quadrant? - ANSWER-Upper outer
quadrant
A mass in the 2:00 position of the right breast corresponds with what quadrant? - ANSWER-Upper inner
quadrant
, 4|Page
A mass in the 8:00 position of the left breast corresponds with what quadrant? - ANSWER-Lower inner
quadrant
A mass in the 8:00 position of the right breast corresponds with what quadrant? - ANSWER-Lower outer
quadrant
What is the milk line? - ANSWER-The milk line represents an anatomic region of the body where portions
of breast tissue may develop
The milk line is located : - ANSWER-From the axilla to the inguinal region on both right and left sides of
the body
Amastia : - ANSWER-Absence of one or both breasts
Polymastia : - ANSWER-Accessory breast or more than 2 breasts
Athelia : - ANSWER-Absence of the nipple
Polythelia : - ANSWER-Accessory nipple
Amazia : - ANSWER-Absence of the breast tissue with development of the nipple
Most common developmental anomaly of the breast : - ANSWER-Polythelia
What are the 2 main arterial supplies of the breast? - ANSWER-- Lateral thoracic artery
- Internal mammary artery (internal thoracic artery)
What are the 2 secondary arterial supplies of the breast? - ANSWER-- Thoracoacromial artery
- Intercostal artery
