In primordial follicles, the single flat layer of supporting cells that surround the oocyte is called?

Appeared in: UPUMS Nsg officer-2023

Explanation

Primordial follicles represent the most basic and earliest stage of follicular development in the ovary.
A primordial follicle is composed of a primary oocyte that is surrounded by a single layer of flattened, squamous-like supporting cells.
These specific supporting cells are termed granulosa cells (or sometimes pre-granulosa cells at this stage).
This structure remains dormant until recruited for further development.

Option A: Theca cells are not present in primordial follicles. They differentiate from the ovarian stroma later, during the secondary follicle stage, to form layers external to the granulosa cells.
Option B: Glial cells are supporting cells of the central and peripheral nervous system. They are not found in the ovaries or any part of the reproductive system.
Option C: The antrum is not a cell layer; it is a fluid-filled cavity that develops within the granulosa cell layers during later stages of follicular maturation.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Histology of the Ovarian Follicle as background academic context rather than a clinical decision trigger.
A solid understanding of follicular development is fundamental for nurses working in reproductive health, endocrinology, and infertility clinics.
The recruitment of primordial follicles and their development is the basis of the monthly menstrual cycle and female fertility.
Nurses educate patients on conditions like Polycystic Ovary Syndrome (PCOS), where follicular development is often arrested, leading to anovulation and infertility.

How to Approach the Question

This is a factual recall question based on histology and reproductive physiology.
First, identify the core subject of the question: the structure of a 'primordial follicle'.
Next, focus on the specific detail requested: the name of the 'single flat layer of supporting cells' around the oocyte.
Systematically evaluate each option. Recall or deduce the definition of each term.
Eliminate 'Glial cells' as they belong to the nervous system.
Eliminate 'Antrum' as it is a fluid-filled space, not a cell layer, and appears in later follicular stages.

Concept Tested & Keywords

Concept Tested: Histology of the Ovarian Follicle
Stem keywords: primordial follicles, oocyte, supporting cells, single flat layer
Lead-in keywords: is called

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E6 Histology Inderbir 11e p. 116-118

E6 Gynecology Williams p. 368-433

Practise the full UPUMS Nsg officer-2023

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