Endocrine system 4, Homeostasis acheived by negative feedback

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Thyroid stimulating hormone (TSH) is produced by the;
a. Thyroid gland
b. Parathyroid glands
c. Anterior lobe of the pituitary gland
d. Adrenal cortex

Increasing levels of thyroid hormone in the blood will;
c. Stimulate release of thyroid stimulating hormone from the anterior pituitary gland
b. Inhibit release of thyroid stimulating hormone from the anterior pituitary gland *
c. Have no effect on the release of thyroid stimulating hormone from the anterior pituitary gland
d. Inhibit release of antidiuretic hormone from the posterior pituitary gland

Releasing hormones are produced by the;
a. Hypothalamus *
b. Anterior pituitary
c. Posterior pituitary
d. Thyroid gland

Excess cortisol in the blood will lead to;
a. Diabetes mellitus (type 1)
b. Addison’s’ disease
c. Cushing’s disease *
d. Thrombocytopenia

Reduced cortisol in the blood will lead to;
a. Diabetes mellitus (type 1)
b. Addison’s’ disease *
c. Cushing’s disease
d. Thrombocytopenia

Thyrotoxicosis would lead to
a. Hypercholesterolaemia
b. Subcutaneous oedema
c. Weight loss *
d. Weigh gain

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