Endocrine system

Endocrine system: Encyclopedia - Endocrine system

The endocrine system is a control system of ductless endocrine glands that secrete chemical messengers called hormones that circulate within the body via the bloodstream to affect distant organs. It does not include exocrine glands such as salivary glands, sweat glands and glands within the gastrointestinal tract. The field of medicine that deals with disorders of endocrine glands is endocrinology, a branch of the wider field of internal medicine. Endocrine system - Physiology. The endocrine s ...

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Endocrine system - Role in disease

Endocrine system: Encyclopedia II - Endocrine disruptor - The endocrine system Endocrine systems are found in most varieties of animal life. The endocrine system is made up of glands, which secrete hormones, and receptor cells which detect and react to the hormones. Hormones are released by glands and travel throughout the body, acting as chemical messengers. Hormones interface with cells that contain matching receptors in or on their surfaces. The hormone binds with the receptor, much like a key would fit into a lock. ...

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Ageusia - Sources

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Endocrine system: Encyclopedia - Chakra

In Hinduism and its spiritual systems of yoga and in some related eastern cultures, as well as in some segments of the New Age movement -- and to some degree the distinctly different New Thought movement -- a chakra is thought to be an energy node in the human body. The word comes from the Sanskrit cakra चक्र meaning "wheel, circle", and sometimes also referring to the "wheel of life". The pronunciation of this word can be approximated ...

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Endocrine system: Encyclopedia - Hormone

A hormone (from Greek horman - "to set in motion") is a chemical messenger from one cell (or group of cells) to another. All multicellular organisms produce hormones (including plants - see article phytohormone). The best-known animal (and human) hormones are those produced by endocrine glands of vertebrate animals, but hormones are produced by nearly every organ system and tissue type in a human or animal body. Hormone molecules are secreted (released) directly into the bloodstream (however, some hormones, called ...

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Hormone - Reference

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Endocrine system: Encyclopedia - Pharmacology

Pharmacology (in Greek: pharmacon (φάρμακον) meaning drug, and logos (λόγος) meaning science) is the study of how chemical substances interact with living systems. If substances have medicinal properties, they are considered pharmaceuticals. The field encompasses drug composition and properties, interactions, toxicology, therapy, and medical applications and antipathogenic capabilities. The science is considered to have been invented by Arabic physicians in Baghdad during the Golden Age of Islam; phar ...

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Endocrine system: Encyclopedia - Arousal

Arousal is a physiological and psychological state involving the activation of the reticular activating system in the brain stem, the autonomic nervous system and the endocrine system, leading to increased heart rate and blood pressure and a condition of alertness and readiness to respond. It is a crucial process in motivating certain behaviours, such as the fight or flight response and sexual activity (see Masters and Johnson's human sexual response cycle, w ...

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Endocrine system: Encyclopedia - Pituitary gland

The pituitary gland, or hypophysis, is an endocrine gland about the size of a pea that sits in the small, bony cavity (sella turcica) at the base of the brain. Its posterior lobe is connected to a part of the brain called the hypothalamus via the infundibulum (or stalk), giving rise to the tuberoinfundibular pathway. The posterior lobe is thus derived from neural ectoderm while the anterior lobe is derived from oral ectoderm. The anterior pituitary lobe receives releasing hormones from the hypothalamus via a portal vein system. ...

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Endocrine system: Encyclopedia - Anterior pituitary

The anterior pituitary (also called the adenohypophysis) comprises the anterior lobe of the pituitary gland and is part of the endocrine system. Under the influence of the hypothalamus, the anterior pituitary produces and secretes several peptide hormones that regulate many physiological processes including stress, growth, and reproduction. Anterior pituitary - Anatomy and development. The adenohypophysis is a pea-size gland anterior to the neurohypophysis, caudal to the hypothalamus, and sits in the ...

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Anterior pituitary - Anatomy and development

Endocrine system: Encyclopedia - Behavior

Behavior (or behaviour) refers to the actions or reactions of an object or organism, usually in relation to the environment. Behavior can be conscious or unconscious, overt or covert, and voluntary or involuntary. Behavior is controlled by the endocrine system, and the nervous system. The complexity of the behavior of an organism is related to the complexity of its nervous system. Generally, organisms with complex nervous systems have a greater capacity to learn new responses and thus adjust their behavior. of people (and other ...

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Behavior - External link

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Endocrine system: Encyclopedia - Thyroid

The thyroid is one of the larger endocrine glands in the body. It is located in the neck and produces hormones, principally thyroxine and triiodothyronine, that regulate the rate of metabolism and affect the growth and rate of function of many other systems in the body. Thyroid - Anatomy. Thyroid - Gross anatomy. The thyroid is situated on the front side of the neck at the level of C5 to T1 vertebral bodies, just below the laryngeal prominence (Adam's apple), near the thyroid ca ...

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Thyroid - Anatomy

Thyroid - Physiology

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Endocrine system: Encyclopedia - Hypothalamus

In the anatomy of mammals, the hypothalamus is a region of the brain located below the thalamus, forming the major portion of the ventral region of the diencephalon and functioning to regulate certain metabolic processes and other autonomic activities. The hypothalamus links the nervous system to the endocrine system by synthesizing and secreting neurohormones often called releasing hormones because they function by stimulating the secretion of hormones from the anterior pituitary gland — among them, gonadotropin-releasing ho ...

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Endocrine system: Encyclopedia - Exocrine gland

Exocrine gland refers to glands that secrete their products via a duct. This is as opposed to endocrine glands that release their products directly into the circulatory system via the capillary network. Typical exocrine glands include sweat glands, salivary glands, mammary glands and many glands of the digestive system. Exocrine gland - Types. Exocrine glands are named apocrine, holocrine, or merocrine based on how their product is secreted. Apocrine glands - a portion of the sec ...

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Exocrine gland - Types

Endocrine system: Encyclopedia - Kundalini yoga

Kundalini yoga is a meditative discipline, comprising a set of simple techniques that uses the mind, senses and body to create a communication between "mind" and "body". Kundalini yoga focuses on psycho-spiritual growth and the body's potential for maturation, giving special consideration to the role of the spine and the endocrine system in the understanding of yogic awakening (Sovatsky, 1998). Kundalini yoga - Kundalini yoga practice. The practice of kundalini yoga consists of a number bodily postur ...