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Related Concept Videos

Diencephalon: Hypothalamus and Coordination01:23

Diencephalon: Hypothalamus and Coordination

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The hypothalamus is a small yet highly complex and essential brain region that plays a crucial role in regulating various bodily functions. Anatomically, it is located at the base of the brain, just above the brainstem and below the thalamus, forming part of the limbic system.
The hypothalamus interacts with other brain regions, including the pituitary gland, through a direct physical connection called the hypothalamic-pituitary axis. The hypothalamus receives somatic and visceral inputs and...
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Hypothalamic-Pituitary Axis01:37

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The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
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Functions of Thyroid Hormones01:18

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The thyroid hormone (TH) plays a pivotal role in the intricate orchestration of physiological processes, exerting profound effects on development, metabolism, and homeostasis throughout different life stages.
TH is indispensable for the normal development and maturation of the skeletal, muscular, and nervous systems during fetal and childhood growth. It facilitates bone mineral turnover and regulates protein synthesis in developing tissues, contributing significantly to overall growth and...
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Major Hormones and Their Functions01:27

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Hormones, the biochemical messengers produced by endocrine glands, are pivotal in regulating bodily functions and maintaining homeostasis. Each hormone's balance is crucial; imbalances can lead to significant physiological disruptions. Major hormones include oxytocin, cortisol, epinephrine, estrogen, testosterone, thyroxine, growth hormone, insulin, and glucagon.
Oxytocin, produced in the hypothalamus and released by the pituitary gland, plays a role in social bonding, childbirth, and...
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Neurotransmitters01:31

Neurotransmitters

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Neurotransmitters are essential chemical messengers within the nervous system, facilitating the communication between neurons. These chemical messengers, varying in function and effect, are critical for sustaining various aspects of neurological health and emotional well-being.
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Hormones of the Pituitary Gland01:27

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The small, pea-sized pituitary gland is located at the base of the brain. It is crucial in regulating various bodily functions, from growth to reproduction. The gland is divided into the anterior lobe and the posterior lobe. The secretory cell clusters in the pars distalis of the anterior pituitary lobe are controlled by hypothalamic regulators and synthesize six primary hormones.
The most abundantly secreted hormone from the anterior lobe is the growth hormone, which controls overall growth by...
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Author Spotlight: Hypothalamic Neural Mechanism Insights
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Role of developmental factors in hypothalamic function.

Jakob Biran1, Maayan Tahor1, Einav Wircer1

  • 1Departments of Molecular Cell Biology, Weizmann Institute of Science Rehovot, Israel.

Frontiers in Neuroanatomy
|May 9, 2015
PubMed
Summary

Hypothalamic development, crucial for regulating body functions, involves key molecular factors. These developmental molecules are vital for both brain development and adult physiological regulation in model organisms.

Keywords:
OtpPAC1SF-1SIM1homeostasisneuroendocrineneuropeptideszebrafish model system

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Genetics

Background:

  • The hypothalamus regulates homeostasis through endocrine, autonomic, and behavioral functions.
  • Hypothalamic nuclei contain distinct neuronal populations controlling fundamental body functions.
  • Developmental abnormalities in hypothalamic circuits are linked to disorders like obesity and autism.

Purpose of the Study:

  • To summarize the role of key developmental factors in hypothalamic development and function.
  • To focus on findings from mouse and zebrafish genetic model organisms.

Main Methods:

  • Review of recent studies in zebrafish and mouse models.
  • Focus on transcription factors, growth factors, neuropeptides, and their receptors.
  • Analysis of molecular mechanisms regulating hypothalamic development.

Main Results:

  • Key developmental factors establish neuronal populations and connectivity in the hypothalamus.
  • Some developmental molecules persist in the adult brain, influencing physiological functions.
  • Genetic models highlight the importance of specific molecular pathways.

Conclusions:

  • Developmental factors are critical for establishing and maintaining hypothalamic function.
  • Understanding these factors offers insights into hypothalamic disorders.
  • Zebrafish and mouse models are valuable for studying hypothalamic development and regulation.