Corpora allata

The corpora allata are paired endocrine glands in insects that secrete juvenile hormone, regulating development, reproduction, and other physiological processes.

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Juvenile hormone: A family of insect hormones that regulates development, reproduction, and other physiological processes. This is the principal hormone secreted by the corpora allata.
Insect endocrine system: The network of glands, hormones, and target tissues that coordinates insect physiology and development. The corpora allata are one component of this hormone-producing network.
Insect reproduction: The biological processes through which insects produce offspring. Corpora allata secretion regulates reproductive maturation and activity in many insects.
Retro cerebral complex: A group of insect neuroendocrine organs behind the brain, including the corpora cardiaca and corpora allata. The corpora allata are anatomically part of this endocrine complex.
Prothoracicotropic hormone: An insect neuropeptide that stimulates the prothoracic glands to produce ecdysteroids. Unlike corpora allata secretion, this signal promotes molting through the ecdysteroid pathway.
Corpora cardiaca: Paired neuroendocrine organs in insects that store and release hormones and regulate other endocrine glands. These neighboring organs help regulate corpora allata activity through neural and hormonal signals.
Insect growth and development: The processes by which insects grow, molt, and progress through life stages. Juvenile hormone from the corpora allata helps regulate these developmental processes.
Vitellogenesis: The production and accumulation of yolk proteins in developing eggs. Juvenile hormone can stimulate vitellogenesis and ovarian development in many species.
Insect brain: The central nervous organ that processes sensory information and coordinates behavior and physiology in insects. Neural signals from the brain help regulate corpora allata activity.
Ecdysteroid: A class of steroid hormones that regulates molting and development in arthropods. Ecdysteroids provide a distinct hormonal signal whose balance with juvenile hormone shapes development.