13 results found

Search Results for: melatonin

Definition noun, plural: melatonin or melatonins The hormone involved in the regulation of several physiological mechanisms... Read More

Chronobiology Definition Chronobiology is a branch of biology that studies time-related phenomena (e.g., biological... Read More

Definition noun, plural: pineal glands A small endocrine gland shaped like a pinecone, located in the epithalamus, and... Read More

Definition noun, plural: pinealocytes The major cell type component of the pineal gland, and is involved in the production... Read More

Definition noun, plural: zeitgebers An external or environmental cue that helps regulate biological clock that drives... Read More

IV. Actions of Caffeine on Brain Functions and BehaviorHaving discussed the molecular and neuronal actions of caffeine,... Read More

Definition noun A phase in the sexual cycle of female animals characterized by their sexual receptiveness or their... Read More

Circadian Rhythm Definition A circadian rhythm is an endogenously-driven biological rhythm with a period close to 24... Read More

Definition noun, plural: hormones (physiology) Any of the substances produced and secreted by an endocrine gland, and then... Read More

Assimilation Definition What is assimilation? Assimilation in biology is defined as the process in which living organisms... Read More

Definition noun, plural: melanocyte-stimulating hormones A peptide hormone in vertebrates that primarily regulate melanin... Read More

Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory... Read More

Hormones are chemical messengers that enter the blood directly upon their secretion from endocrine glands. A single gland or... Read More