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The posterior pituitary is not really an endocrine gland. Why not? What is it?
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Ch. 16 The Endocrine System
Hoehn, Haynes, Abbott12th EditionMarieb Human Anatomy & PhysiologyISBN: 9780138242732
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TOC.tableOfContents
- Ch. 1 The Human Body: An Orientation25
- Ch. 2 Chemistry Comes Alive24
- Ch. 3 Cells: The Living Units24
- Ch. 4 Tissue: The Living Fabric19
- Ch. 5 The Integumentary System12
- Ch. 6 Bones and Skeletal Tissues19
- Ch. 7 The Skeleton14
- Ch. 8 Joints7
- Ch. 9 Muscles and Muscle Tissue26
- Ch. 10 The Muscular System25
- Ch. 11 Fundamentals of the Nervous System and Nervous Tissue23
- Ch. 12 The Central Nervous System25
- Ch. 13 The Peripheral Nervous System and Reflex Activity30
- Ch. 14 The Autonomic Nervous System16
- Ch. 15 The Special Senses26
- Ch. 16 The Endocrine System26
- Ch. 17 Blood27
- Ch. 18 The Cardiovascular System: The Heart25
- Ch. 19 The Cardiovascular System: Blood Vessels27
- Ch. 20 The Lymphatic System and Lymphoid Organs and Tissues16
- Ch. 21 The Immune System: Innate and Adaptive Body Defenses27
- Ch. 22 The Respiratory System21
- Ch. 23 The Digestive System31
- Ch. 24 Nutrition, Metabolism, and Energy Balance26
- Ch. 25 The Urinary System26
- Ch. 26 Fluid, Electrolyte, and Acid-Base Balance24
- Ch. 27 The Reproductive System24
- Ch. 28 Pregnancy and Human Development25
- Ch. 29 Heredity11
Hoehn, Haynes, Abbott12th EditionMarieb Human Anatomy & PhysiologyISBN: 9780138242732Non è quello che usi tu?Cambia libro di testo
Capitolo 16, Problema 16
The anterior pituitary is often referred to as the master endocrine organ, but it, too, has a 'master.' What controls the release of anterior pituitary hormones?
Guida verificata passo dopo passo1
Understand that the anterior pituitary gland secretes several important hormones that regulate various physiological processes.
Recognize that the anterior pituitary itself is regulated by signals from another part of the brain, which acts as its 'master.'
Identify the hypothalamus as the brain region that controls the release of anterior pituitary hormones by producing releasing and inhibiting hormones.
Learn that the hypothalamus sends these regulatory hormones through the hypophyseal portal system, a specialized blood vessel network connecting it to the anterior pituitary.
Conclude that the hypothalamus controls the anterior pituitary by releasing specific hormones that either stimulate or inhibit the secretion of anterior pituitary hormones.
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Hypothalamic Control of the Anterior Pituitary
The hypothalamus regulates the anterior pituitary by releasing specific releasing and inhibiting hormones into the hypophyseal portal system. These hypothalamic hormones stimulate or suppress the secretion of anterior pituitary hormones, thus acting as the 'master' controller.
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10:02
Anterior Pituitary
Hypophyseal Portal System
This specialized blood vessel network connects the hypothalamus to the anterior pituitary, allowing hypothalamic hormones to directly reach and influence anterior pituitary cells. It ensures rapid and efficient hormonal communication between these two brain regions.
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Percorso guidato
4:25Complement System
Feedback Mechanisms in Endocrine Regulation
Hormones released by target endocrine glands provide feedback to both the hypothalamus and anterior pituitary to regulate hormone levels. Negative feedback loops maintain hormonal balance by inhibiting further hormone release when sufficient levels are reached.
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03:00Feedback Loops: Negative Feedback Example 1
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