(= epinephrine) A hormone secreted (with noradrenaline) by the medulla of the adrenal gland, and by neurons of the sympathetic nervous system, in response to stress. The effects are those of the classic 'fight or flight' response, including increased heart function, elevation in blood sugar levels, cutaneous vasoconstriction making the skin pale, and raising of hairs on the neck.
This was the first naturally produced hormone to be isolated it a pure state. It is known as epinephrine, but its chemical name is 1-[3,4-dihydroxyphenol]-2-methylaminoethanol. Its main action is to raise blood pressure, producing a faster pulse rate.
(Learning Modules / Psychology / Measuring the unmeasurable) A hormone produced by the adrenal glands which increases physiological arousal.
One of two chemicals (the other is noradrenaline/norepinephrine) released by the adrenal gland that increases the speed and force of heart beats. It dilates the airways to improve breathing and narrows blood vessels in the skin and intestine. An increased flow of blood then reaches the muscles and allows them to cope with the demands of exercise, s...Found on http://thewellnessshop.co.uk/healthandwellbeing/glossary.html
An important hormone that is used to prepare the body for emergency situations, e.g., by increasing the heart rate. It has widespread effects on circulation, muscles and the provision of energy.
Found on http://www.encyclo.co.uk/local/20560
A hormone (chemical transmitter substance) released from the medulla of the adrenal glands and from sympathetic nerve endings, which prepares the body for 'fight or flight'as a result of a 'fright'.
Found on http://www.felpress.co.uk/Exercise_Physiology_Glossary.24.0.html
This was the first naturally produced hormone to be isolated it a pure state. It is known as epinephrine, but its chemical name is 1-[3,4-dihydroxyphenol]-2-methylaminoethanol. Its main action is to raise blood pressure, producing a faster pulse rate.Found on http://www.chemicalglossary.net/definition/87-Adrenaline
Adrenaline is a hormone produced at times of stress that affects heart rate, blood circulation and other functions of the body.
Found on http://www.nhs.uk/Conditions/Pages/hub.xhtml
Adrenaline: A substance produced by the medulla (inside) of the adrenal gland, adrenaline (the official name in the British Pharmacopoeia) is synonymous with epinephrine. Technically speaking, adrenaline is a sympathomimetic catecholamine. It causes quickening of the heart beat, strengthens the force of the heart's contraction, opens up the bronchi...Found on http://www.medterms.com/script/main/art.asp?articlekey=2155
Also Ad*re'nal*in (Physiol. Chem.)
A crystalline substance, C 9
N, obtained from suprarenal extract, of which it is regarded as the active principle. It is used in medicine as a stimulant and hemostatic. Found on http://www.encyclo.co.uk/webster/A/32
<hormone> A hormone produced by the adrenal medulla in mammals. It can be produced synthetically for medical purposes. It is secreted by the adrenal medulla in response to low blood glucose, exercise and stress and causes a breakdown of glycogen to glucose in the liver, encourages the release of fatty acids from adipose tissue, causes vasodil...Found on http://www.encyclo.co.uk/local/20973
(ә-dren´ә-lin) epinephrine.Found on http://www.encyclo.co.uk/local/21001
• Alt. of AdrenalinFound on http://thinkexist.com/dictionary/meaning/adrenaline/
A hormone and neurotransmitter that, along with smaller amounts of noradrenaline, is secreted by the medulla of the adrenal gland and acts on the alpha and beta adrenergic receptors. Adrenaline, also known as epinephrine (especially in the United States), makes the heart beat faster. It also makes t...Found on http://www.daviddarling.info/encyclopedia/A/adrenaline.html
adrenaline (udren'ulin, –lēn) : see epinephrine.Found on http://www.infoplease.com/ce6/sci/A0909945.html
Type: Term Pronunciation: ă-dren′ă-lin Synonyms: epinephrineFound on http://www.medilexicon.com/medicaldictionary.php?t=1378
Hormone secreted by the medulla of the adrenal glands. Adrenaline is synthesized from a closely related substance, noradrenaline, and the two hormones are released into the bloodstream in situations of fear or stress. Adrenaline's action on the liver raises blood-sugar levels by stimulating glucose production and its action on adipose tissu...Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0016689.html
A hormone and neurotransmitter. Also called epinephrine.Found on http://www.cancer.gov/dictionary?expand=A
a secretion in response to stress, stimulating nerve actionFound on https://www.vocabulary.com/lists/844476
A stress hormone which aids in the release of stored sugar in the liver, increased muscle contractioFound on http://www.superglossary.com/Glossary/Health/Vitamins/
Also known as epinephrine. A hormone that stimulates the heart and increases blood pressure.Found on http://www.vetmed.wsu.edu/glossary/glossary.asp
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