Thy thyroid gland is part of the Hypothalamic-Pitutitary-Thyroidal Axis. What is a hormonal axis?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Thy thyroid gland is part of the Hypothalamic-Pitutitary-Thyroidal Axis. What is a hormonal axis?

A hormonal axis is a cascade of hormone release which involves more than 3 endocrine glands

A hormonal axis is a positive feedback loop that results in the end of a body process

A hormonal axis is a series of events that initiates the fight or flight response

An axis is a hormonal imbalance that results in an overactive thyroid gland

Expert Solution
Step 1: Introduction to endocrine system

The endocrine system is a critical organ system of the body that is concerned with the secretion of hormones, a type of chemical messengers that aid in controlling reproductive, digestive, cardiovascular, and metabolical functions of the body. Hormones are secreted directly into the bloodstream and are usually transported to the target organ/cell/tissue that is directed at a distant region from its origin of secretion. Anomalies in the function of an endocrine organ/gland due to factors like damage or injury, autoimmune response, the effect of the action of another tropic gland, or underlying disease or disorder can hamper the function of hormone secretion as well as the effectiveness of the hormone function. 

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