Female Repro Histology Flashcards
Ovary Layers with Description
Medulla: Vascularized center with nerves and lymphatics
Cortex: Houses Follicles
Tunica Albuginea: connective tissue around cortex
Germinal Epithelium: Simple squamous to cuboidal
Primordial Follicle Description
Develops in 5th month independent of hormones and arrested in prophase
Surrounded by simple squamous layer
Primary Follicle Description
Unilaminar and Multilaminar
Unilaminar: Simple cuboidal layer and Zona Pellucida
Multilaminar: Multiple cuboidal layers called Granulosa Cells, Zona Pellucida thickens
Theca Interna with LH receptors that secretes androgen precursors
Theca Externa made of connective tissue
Secondary Follicle Description
Antrum forms, Zona Pellucida thickens, Granulosa cells increase
Graafian Follicle Description
Meiosis I finished before ovulation
Corona Radiata forms
Cumulus Oophorus prepared for ovulation
Mural Granulosa cells line follicle and secrete estrogen
Follicular Atresia
Follicles that aren’t ovulated undergo apoptosis
Identified by folded zona pellucida and glassy membrane
Ovarian Cycle Ovulatory Phase Description
LH surge triggers follicle to finish Meiosis I
Causes follicle to extend as a stigma that ejects oocyte
Corpus Hemorrhagium becomes the Corpus Luteum
Ovarian Cycle Luteal Phase
Description and Cell Products
Luteinization of theca/granulosa cells of corpus hemorrhagium
Granulosa cells make Progesterone, Estrogen and Inhibin
Theca cells make androstenedione
Without fertilization, CL becomes corpus albicans
Ovarian Cycle Phase Hormone Levels
Follicular phase has higher FSH and Estradiol
Ovulatory phase has higher LH and Progesterone
Uterine Tube Cell Types
Ciliated Cells: stimulated by estrogen to move oocyte
most numerous in infundibulum and ampulla
PEG Cells: stimulated by progesterone to produce nutrient rich fluid
Ovarian Cycle Phase Hormone Levels
Follicular phase has higher FSH and Estradiol
Ovulatory phase has higher LH and Progesterone
Uterine Tube Cell Types
Ciliated Cells: stimulated by estrogen to move oocyte
most numerous in infundibulum and ampulla
PEG Cells: stimulated by progesterone to produce nutrient rich fluid
Uterus Layers
Endometrium: Stratum Basalis and Stratum Functionalis
Myometrium: Stratum Vasculare
Perimetrium: Outer Serious Layer, continuous with peritoneum
Uterus Blood Supply Breakdown
Uterine A. to Arcuate As. to Radial As. to Straight As to Spiral As.
Menstrual Cycle Menstrual Phase
Description and Ovarian Cycle Correlation
CL regression decreases Estrogen and Progesterone
Stratum Functionalis to degrade until only Basalis left
Occurs during days 1-5 with Follicular Phase