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Chapter 37: Q.15 (page 1078)

A rise in blood glucose levels triggers release of insulin

from the pancreas. This mechanism of hormone

production is stimulated by:

a. humoral stimuli

b. hormonal stimuli

c. neural stimuli

d. negative stimuli

Short Answer

Expert verified

A rise in blood glucose levels triggers the release of insulin from the pancreas. This mechanism of hormone production is stimulated by humoral stimuli. Hence, the correct option is 'a'.

Step by step solution

01

Step 1. Introduction 

A humoral stimulus is a shift in extracellular fluids that regulates the release of hormones.

02

Step 2. Explanation of the correct option 

For instance, a spike in blood glucose levels causes the release of insulin from the pancreas. In a negative feedback loop, as blood glucose levels fall as a result of insulin, the pancreas is alerted to stop manufacturing insulin.

03

Step 3. Explanation of the incorrect options 

A hormone is released in response to another hormone, which is referred to as a hormonal stimulus. Some endocrine glands are induced to release hormones by hormones from other endocrine glands.

Neural stimuli are when the neurological system directly causes the release of hormones from the endocrine glands.

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