Breast is composed of?

Appeared in: NCL (MP) Nursing Officer - 2019

Explanation

The breast's primary functional component is the parenchyma, which consists of glandular tissue (lobes and ducts) responsible for milk production.
The main bulk, size, and shape of the breast are determined by the stroma, which is predominantly composed of fatty (adipose) tissue.
While fibrous connective tissue (suspensory ligaments of Cooper) is also present for support, the combination of glandular and fatty tissues represents the most significant components by function and volume, making it the best answer.

Option A: This option is incomplete. It omits the fatty tissue, which constitutes a large portion of the breast's volume, and the fibrous connective tissue that provides structural support.
Option B: This option is incorrect as it misses the primary functional component (glandular tissue for lactation) and the fatty tissue that provides the main bulk of the breast.
Option C: This option is incomplete because it omits the essential glandular tissue (parenchyma), which is responsible for the breast's primary physiological function: producing milk.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Anatomy and composition of the human breast as background academic context rather than a clinical decision trigger.
Understanding breast composition is crucial for interpreting mammograms, as the ratio of radiodense glandular tissue to radiolucent fatty tissue affects breast density and the ability to detect cancer.
During a clinical breast examination, nurses must be able to differentiate between normal, often lumpy, glandular tissue and potentially malignant masses, which may feel harder and more fixed than the surrounding fatty and fibrous tissue.
What if? If the patient is postmenopausal, the glandular tissue largely atrophies (involutes) and is replaced by fatty tissue. This change in composition makes the breast less dense, which can make abnormalities easier to spot on a mammogram.

How to Approach the Question

First, identify the core of the question, which asks for the main components of the breast tissue.
Recall the basic anatomy of the breast. It has a functional part (for milk production) and a structural/volume part.
The functional part is the mammary gland, which is glandular tissue.
The structural part (stroma) consists of fatty tissue for bulk and fibrous connective tissue for support.
Evaluate the given options to see which one best represents these primary components. The combination of 'glandular' (functional) and 'fatty' (bulk) is the most accurate and comprehensive choice.

Concept Tested & Keywords

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E6 Anatomy BDChaurasia V1 10e p. 45-47

Practise the full NCL (MP) Nursing Officer - 2019

Attempt every question from this paper in a timed mock, then review the full solution for each one.