rom the provided image (mature ovarian follicle under 10X), label the structures described under growing follicle:
rom the provided image (mature ovarian follicle under 10X), label the structures described under growing follicle:
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
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From the provided image (mature ovarian follicle under 10X), label the structures described under growing follicle:
Growing or secondary follicle—round body larger than the primary follicle and consists of the following structures, from the inside outward.
- Primary oocyte—a single large cell inside the follicle
- Yolk—finely granular material located in the cytoplasm of the oocyte.
- Vitelline membrane of primary oocyte—cell membrane of 1st oocyte. Appear as a thin line that encloses the oocyte
- Zona pellucida—a homogenous material that encloses the vitteline membrane. Believe to be secreted to both the oocyte and the corona radiata.
- Corona radiata—a single layer of follicular cells that surround the zona pellucida.
- Cumulus oophorus—several layers of follicular cells external to the corona radiata that form a stalk that anchors the ooocyte to the stratum granulosum.
- Antrum with liquor folliculi—cavity that separates the oocyte from the stratum granulosum and contains a fluid calle liquor folliculi.
- Stratum granulosum or membrana granulosa—several layers of cells that form the peripheral wall of the follicle. Believe to secrete estrogen.
- Basal lamina—a thin homogenous material that forms the outer limit of the ovarian follicle and on which the stratum granulosum cells rest.
- Theca folliculi or capsule—part of the ovarian stroma that surrounds the basal lamina and forms the capsule of the follicle. Consists of the two layers:
Theca folliculi interna—inner cellular layer from the ovarian stroma
Theca folliculi externa—outer fibrous layer that forms the outer capsule of the follicle.
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