Chapter 31

The ____________ hormones enter cells and function as transcription factors. a. steroid b. protein c. peptide d. both b and \(c\)

Antidiuretic hormone is produced by cell bodies in the hypothalamus but released from the ______________ a. anterior pituitary b. posterior pituitary c. kidney d. pincal gland

Overproduction of ____________ causes gigantism. a. growth hormone b. cortisol c. insulin d. melatonin

Steroid hormones are synthesized from _____________. a. amines b. peptides c. proteins d. cholesterol

_____________ lowers blood sugar level. a. Melatonin b. Glucagon c. Insulin d. Calcitonin

In addition to hormones, the ___________ secretes enzymes that function in digestion. a. hypothalamus b. pancreas c. pineal gland d. parathyroid gland

When the hypothalamus detects a low concentration of thyroid hormone in the blood, it secretes a releasing hormone that acts on the _____________ . a. anterior pituitary gland b. parathyroid gland c. thyroid gland d. pineal gland

Secretion of _____________ stimulates breakdown of bone and activation of vitamin \(\mathrm{D}\) a. glucagon b. melatonin c. thyroid hormone d. parathyroid hormone

_____________ is necessary for amphibian metamorphosis and normal development of the human nervous system. a. Testosterone b. Melatonin c. Thyroid hormone d. Cortisol

During stressful times, the adrenal cortex increases its secretion of __________ . a. iodine b. aldosterone c. cortisol d. epinepherine

The male sex hormone testosterone is secreted in response to a hormone secreted by the a. testes b. ovaries c. pituitary gland d. pancreas

Match cach structure with a function. a. secretion affected by light b. control(s) other glands c. regulate(s) blood calcium d. release(s) epinephrine e. secrete(s) insulin, glucagon f. produces gametes and hormones g. requires iodine to function adrenal medulla thyroid gland Parathyroid glands pancreatic islets pineal gland hypothalamus ovaries

Both vertebrates and invertebrates produce ___________ . a. ecdysone b. estrogen c. thyroid hormone d. glucagon

Match the hormone with its most suitable description. a. encourages glucose uptake b. elevated in Cushing's syndrome c. increases metabolic rate d. affects seasonal behavior e. encourages glycogen breakdown f. causes development of male secondary sexual traits g. causes development of female secondary sexual traits melatonin thyroid hormone cortisol estrogen testosterone glucagon insulin