Knowledge Tree
early follicular phase
Facts (14)
Sources
The Normal Menstrual Cycle and the Control of Ovulation - NCBI - NIH ncbi.nlm.nih.gov Aug 5, 2018 12 facts
claimDuring the early follicular phase, exfoliated vaginal epithelial cells are basophilic and have vesicular nuclei.
measurementThe daily production rate of progesterone in women is 1 mg during the early follicular phase, 4 mg during the preovulatory phase, and 25 mg during the mid-luteal phase.
claimDuring the late follicular phase, rising estradiol levels cause cervical mucous to become clear, copious, elastic, and increase in quantity by 30-fold compared to the early follicular phase.
measurementDuring the early follicular phase of the menstrual cycle, Luteinizing hormone (LH) secretion occurs at a pulse frequency of 60 to 90 minutes with relatively constant pulse amplitude.
measurementThe daily production rate of testosterone in women is 144 µg during the early follicular phase, 171 µg during the preovulatory phase, and 126 µg during the mid-luteal phase.
measurementThe daily production rate of androstenedione in women is 2.6 mg during the early follicular phase, 4.7 mg during the preovulatory phase, and 3.4 mg during the mid-luteal phase.
measurementThe daily production rate of estradiol in women is 36 µg during the early follicular phase, 380 µg during the preovulatory phase, and 250 µg during the mid-luteal phase.
measurementThe daily production rate of 17α-hydroxyprogesterone in women is 0.5 mg during the early follicular phase, 4 mg during the preovulatory phase, and 4 mg during the mid-luteal phase.
claimLuteinizing hormone (LH) levels are low during the early follicular phase of the menstrual cycle and begin to rise by the mid-follicular phase due to positive feedback from rising estrogen levels.
claimFollicle-stimulating hormone (FSH) is elevated during the early follicular phase and begins to decline until ovulation.
measurementThe daily production rate of dehydroepiandrosterone in women is 7 mg during the early follicular, preovulatory, and mid-luteal phases.
measurementThe daily production rate of estrone in women is 50 µg during the early follicular phase, 350 µg during the preovulatory phase, and 250 µg during the mid-luteal phase.
Understanding the Menstrual Cycle: A Breakdown of Its Four Phases raleighob.com Jan 15, 2025 1 fact
claimDuring the early follicular phase, rising estrogen levels suppress luteinizing hormone to ensure the body's preparation for ovulation is gradual.
Sex differences in cardiorespiratory control under hypoxia - Frontiers frontiersin.org Jan 30, 2025 1 fact
claimThe study assessed female participants during the early follicular phase of the menstrual cycle to minimize the potential influence of hormones on the ventilatory response.