Chapter 2.2 (page 28)

Question 1

Endocrine glands are stimulated to produce and secrete their hormones by 3 major types of stimuli:

Answer 1

Humoral Stimuli

Neural Stimuli

Hormonal Stimuli

Question 2

How does negative feedback aid in regulate the hormonal levels?

Answer 2

As hormone levels rise, they affect the target organ and inhibit further hormone release.

 As a result, blood levels of many hormones vary within a narrow  range.

Question 3

_______________ are responsible in affecting glands to produce hormones in direct response to changing blood levels of certain ions and nutrients.

Answer 3

Humoral Stimuli

Eg. Insulin released by pancreas in response to rising blood sugar levels.

Question 4

This is where hormones are released as a result of stimulation of the endocrine gland by nerves.

Answer 4

Neural Stimuli

Eg. Sympathetic stimulation of the adrenal medulla during periods of stress.

Question 5

This is where endorcrine glands release their hormones in response to hormones produced by other endocrine organs.

Answer 5

Hormonal Stimuli

Eg Tropic Hormones