Inversion of nipple occures due to involvement of
**Question:** Inversion of nipple occurs due to involvement of
A. Mast cells
B. Nipple eversion muscles
C. Nipple eversion muscles
D. Areolar tissue
**Core Concept:**
Inversion of nipple is a condition in which the nipple becomes inverted or retracted within the areola, resulting in a change in nipple appearance. This can have various causes, including anatomical, physiological, or pathological conditions. Understanding the underlying structures and their functions is crucial in assessing and treating these conditions.
**Why the Correct Answer is Right:**
The correct answer is B, Nipple eversion muscles. These muscles, primarily the nipple eversion muscle (also known as the areolae elevans) and the areolar muscle, are responsible for moving the nipple outward (eversion) from its normal position. When these muscles are involved, they fail to contract normally, leading to nipple inversion.
**Why Each Wrong Option is Incorrect:**
A. Mast cells are immune cells involved in allergic and inflammatory responses and are not responsible for nipple eversion or inversion.
C. Nipple eversion muscles (areolae elevans and areolar muscle) are the correct answer as mentioned above.
D. Areolar tissue is the connective tissue that surrounds the nipple and areola but does not directly influence nipple eversion or inversion.
**Clinical Pearl:**
Understanding nipple eversion muscles and their function is crucial in diagnosing and treating nipple inversion conditions. A thorough clinical examination, including assessing the movement and function of these muscles, can guide the diagnosis and management of nipple retraction disorders.