Parathyroid hormone is released when blood calcium levels fall. This is considered to be a form of hormonal stimulation. O Neural O Hormonal O Humoral O Muscular
Parathyroid hormone is released when blood calcium levels fall. This is considered to be a form of hormonal stimulation. O Neural O Hormonal O Humoral O Muscular
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,...
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Transcribed Image Text:**Question:**
Parathyroid hormone is released when blood calcium levels fall. This is considered to be a _____ form of hormonal stimulation.
**Options:**
- Neural
- Hormonal
- Humoral
- Muscular
### Explanation:
This question presents a scenario involving the release of parathyroid hormone in response to falling blood calcium levels. The type of stimulation governing this biological process needs to be identified. Four options are provided:
1. **Neural:** This pertains to stimulation by the nervous system.
2. **Hormonal:** This relates to stimulation by other hormones.
3. **Humoral:** This refers to stimulation by substances dissolved in body fluids, such as blood.
4. **Muscular:** This concerns stimulation originating from muscle activity.
In this context, the correct answer would be "Humoral" because the release of parathyroid hormone in response to changing blood calcium levels involves a chemical change in the body fluids.
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