Chapter 25

_________, signaling molecules released by endocrine cells and glands, enter the blood and are distributed through the body. a. Hormones b. Neurotransmitters c. Endocrine disruptors d. all of the above

Antidiuretic hormone and oxytocin are hormones produced in the hypothalamus but released from the ________. a. anterior lobe of pituitary b. posterior lobe of pituitary c. pancreas d. pineal gland

Protein hormones typically bind to receptors _________. a. in the DNA b. in the cytoplasm c. at the plasma membrane d. both a and c

Match each pituitary hormone with its target. $$ \text {________antidiuretic hormone} \quad \quad\quad\quad\quad \text {a. gonads (ovaries, testes)} $$ $$ \text {________oxytocin} \quad \quad\quad\quad\quad \text {b. mammary glands, uterus} $$ $$ \text {________luteinizing hormone\(\space\)theory} \quad \quad\quad\quad\quad \text {c. kidneys} $$ $$ \text {________growth hormone} \quad \quad\quad\quad\quad \text {d. most body cells} $$

The _______ regulate(s) calcium levels in the blood. a. hypothalamus b. pancreas c. pineal gland d. parathyroid glands

_______ lowers blood sugar levels;________ raises it. a. Glucagon; insulin b. Insulin; glucagon c. Melatonin; insulin d. Cortisol; glucagon

A rise in hormone concentration in the blood slows production of that hormone in a _______ feedback loop. a. positive b. negative

The _______ produces digestive enzymes and hormones. a. hypothalamus b. pancreas c. pineal gland d. parathyroid gland

A diet lacking in iodine can cause _______. a. rickets b. a goiter c. diabetes d. gigantism

True or false? Only women make follicle-stimulating hormone and luteinizing hormone.

A person with an overly active thyroid gland is more likely to be unusually _________. a. heavy b. anxious c. cold d. both a and b

During stressful situations, the adrenal glands increase their output of ________ . a. cortisol b. epinephrine c. norepinephrine d. all of the above

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

Match the hormone source listed at left with the most suitable description at right. $$ \text {________adrenal cortex} \quad \quad\quad\quad\quad \text {a. make gametes and hormones} $$ $$ \text {________thyroid gland} \quad \quad\quad\quad\quad \text {b. major control center} $$ $$ \text {________thymus gland} \quad \quad\quad\quad\quad \text {c. blood calcium effect} $$ $$ \text {________parathyroid glands} \quad \quad\quad\quad\quad \text {d. allows T cell maturation} $$ $$ \text {________pancreatic islets} \quad \quad\quad\quad\quad \text {e. stress increases secretions} $$ $$ \text {________pineal gland} \quad \quad\quad\quad\quad \text {f. light inhibits secretion} $$ $$ \text {________hypothalamus} \quad \quad\quad\quad\quad \text {g. hormones require iodine} $$ $$ \text {________testes} \quad \quad\quad\quad\quad \text {h. insulin, glucagon source} $$