Answered: Describe chronic, acute, and episodic…

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

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

See similar textbooks

Related questions

Question

Describe chronic, acute, and episodic patterns of hormone
secretion

Expert Solution

Step 1

Hormones are chemical messengers released by several organs of the body that affect the functioning of other parts of the body. These are secreted only when stimulated. Three types of stimuli result in hormone secretion:

Humoral stimulation is exhibited by hormones that are sensitive to circulating blood levels of certain molecules, such as glucose or calcium
Neural stimuli cause hormone secretion in direct response to action potentials in neurons, as occurs during stress or exercise.
Hormones from the hypothalamus that cause the release of other hormones are called releasing hormones.

Hormonal secretory should be regulatory in order to maintain the homeostasis. Two processes regulate the overall blood levels of hormones:

Negative feedback prevents further hormone secretion once a set point is achieved.
Positive feedback is a self-promoting system whereby the stimulation of hormone secretion increases over time