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Describe each of the three phases of a typical 28-day uterine cycle.
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Ch. 28 The Reproductive System
Martini, Nath, Bartholomew11th EditionFundamentals of Anatomy & PhysiologyISBN: 9780136874089
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TOC.tableOfContents
- Ch. 1 An Introduction to Anatomy and Physiology26
- Ch. 2 The Chemical Level of Organization34
- Ch. 3 The Cellular Level of Organization30
- Ch. 4 The Tissue Level of Organization24
- Ch. 5 The Integumentary System17
- Ch. 6 Bones and Bone Structure36
- Ch. 7 The Axial Skeleton11
- Ch. 8 The Appendicular Skeleton17
- Ch. 9 Joints13
- Ch. 10 Muscle Tissue12
- Ch. 11 The Muscular System28
- Ch. 12 Nervous Tissue18
- Ch. 13 The Spinal Cord, Spinal Nerves, and Spinal Reflexes22
- Ch. 14 The Brain and Cranial Nerves20
- Ch. 15 Sensory Pathways and the Somatic Nervous System17
- Ch. 16 The Autonomic Nervous System and Higher-Order Functions30
- Ch. 17 The Special Senses16
- Ch. 18 The Endocrine System20
- Ch. 19 Blood31
- Ch. 20 The Heart31
- Ch. 21 Blood Vessels and Circulation29
- Ch. 22 The Lymphatic System and Immunity31
- Ch. 23 The Respiratory System12
- Ch. 24 The Digestive System18
- Ch. 26 The Urinary System31
- Ch. 27 Fluids & Electrolytes32
- Ch. 28 The Reproductive System12
- Ch. 29 Development and Inheritance23
Martini, Nath, Bartholomew11th EditionFundamentals of Anatomy & PhysiologyISBN: 9780136874089Non è quello che usi tu?Cambia libro di testo
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Martini, Nath, Bartholomew 11th EditionCh. 28 The Reproductive SystemProblema 20
Martini, Nath, Bartholomew 11th EditionCh. 28 The Reproductive SystemProblema 20Capitolo 27, Problema 20
Describe the hormonal events associated with the ovarian cycle.
Guida verificata passo dopo passo1
Begin by understanding that the ovarian cycle is divided into three main phases: the follicular phase, ovulation, and the luteal phase, each regulated by specific hormonal changes.
During the follicular phase, the hypothalamus releases gonadotropin-releasing hormone (GnRH), which stimulates the anterior pituitary to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). FSH promotes the growth of ovarian follicles.
As follicles develop, they secrete increasing amounts of estrogen, which initially exerts negative feedback on FSH and LH secretion but later switches to positive feedback, leading to a surge in LH levels.
The LH surge triggers ovulation, the release of the mature egg from the dominant follicle, and initiates the transformation of the ruptured follicle into the corpus luteum.
In the luteal phase, the corpus luteum secretes progesterone and some estrogen, which maintain the uterine lining and exert negative feedback on GnRH, FSH, and LH to prevent further follicle development until the cycle restarts.
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Phases of the Ovarian Cycle
The ovarian cycle consists of three main phases: the follicular phase, ovulation, and the luteal phase. Each phase involves specific hormonal changes that regulate the development and release of an egg from the ovary.
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Percorso guidato
09:54
Phases of The Krebs Cycle
Role of Gonadotropins (FSH and LH)
Follicle-stimulating hormone (FSH) stimulates follicle growth in the ovary, while luteinizing hormone (LH) triggers ovulation and formation of the corpus luteum. These hormones are secreted by the anterior pituitary and are key regulators of the ovarian cycle.
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13:06Review of Major Hormones
Estrogen and Progesterone Secretion
Estrogen is primarily produced by developing follicles and promotes the thickening of the uterine lining. After ovulation, the corpus luteum secretes progesterone, which maintains the uterine lining for potential pregnancy and inhibits further ovulation.
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01:33Protein Secretion
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b. ___
c. ___
d. ___
e. ___
f. ___
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h. ___
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j. ___
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