FHSC 203: Endocrine System Chapter 6

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Which of the following describes antagonism between hormones?

Multiple hormones produce the same effects on a target cell.

One hormone enhances the action of another hormone.

One hormone is necessary for another hormone to exert its effects.

One or more hormones opposes the action of another hormone. (correct)

What type of stimuli directly stimulates the secretion of hormones in response to changes in blood levels of ions and nutrients?

Negative feedback stimuli

Hormonal stimuli

Neural stimuli

Humoral stimuli (correct)

What is the purpose of negative feedback systems in hormone regulation?

To stimulate hormone secretion

To inhibit hormone synthesis

To amplify hormone effects

To maintain hormone levels within a narrow desirable range (correct)

Which of the following is an example of synergism between hormones?

Glucagon and epinephrine increase glucose release by 150%. Signup and view all the answers

What type of hormonal interaction requires the presence of one hormone for another hormone to exert its effects?

Permissiveness Signup and view all the answers

What type of stimuli directly stimulates endocrine cells through nerve fibers?

Neural stimuli Signup and view all the answers

What is the primary function of TSH in the thyroid gland?

Stimulation of the release of thyroid hormones Signup and view all the answers

What is the effect of increased glucocorticoid levels on CRH and ACTH release?

It decreases the rates of CRH and ACTH release Signup and view all the answers

Which hormone is responsible for stimulating the release of steroid hormones by the adrenal cortex?

Adrenocorticotropic hormone Signup and view all the answers

What is the role of the hypothalamus in the regulation of TSH and ACTH release?

It stimulates the release of TSH and ACTH through TRH and CRH Signup and view all the answers

What is the effect of thyrotropin-releasing hormone (TRH) on the pituitary gland?

It stimulates the release of thyroid-stimulating hormone Signup and view all the answers

What is the primary function of glucocorticoids in the body?

Helping the body to resist stressors Signup and view all the answers

What is the primary method by which endocrine glands release hormones?

Directly into the bloodstream Signup and view all the answers

Which of the following is a correct example of a paracrine hormone action?

Somatostatin inhibiting insulin release in a different cell population Signup and view all the answers

Which hormone classification involves chemicals that exert effects on the same cells that secrete them?

Autocrine Signup and view all the answers

Which of the following is NOT a role of the endocrine system?

Coordinating voluntary muscle movements Signup and view all the answers

What characteristic do hormones exhibit concerning their response time?

Response occurs after a lag period Signup and view all the answers

What vascular structures typically receive hormones from endocrine glands?

Capillary beds Signup and view all the answers

Which statement best describes hormone longevity and effects?

Hormones provide prolonged and diverse responses Signup and view all the answers

Which of the following is NOT typically affected by multiple hormone systems?

Skeletal movement Signup and view all the answers