Chapter 32

_________are signaling molecules released from one type of cell that can alter target cell activities. a. Hormones b. Neurotransmitters c. Pheromones d. Local signaling molecules e. both a and b f. a through d

ADH and oxytocin are hormones produced in the hypothalamus but distributed from the _____________. a. anterior lobe of pituitary b. posterior lobe of pituitary c. pancreass d. pineal gland

Overproduction of ___________ causes gigantism. a. growth hormone b. ADH c. insulin d. melatonin

Which do not stimulate hormone secretions? a. neural signals b. local chemical changes c. hormonal signals d. environmental cues e. All of the above can stimulate secretion.

__________lowers blood sugar levels; _____________raises it. a. Glucagon; insulin b. Insulin; glucagon c. Gastrin; insulin d. Gastrin; glucagon

The pituitary detects a rising hormone concentration in blood and inhibits the gland secreting the hormone. This is a ________ feedback loop. a. positive b. negative c. long-term d. \(b\) and \(c\)

The __________ has endocrine and exocrine functions. a. hypothalamus b. pancreas c. pineal gland d. parathyroid gland

Secretion of __________ stimulates breakdown of bone. a. glucagon b. melatonin c. thyroid hormone d. parathyroid hormone

Exposure to bright light lowers blood _________ levels. a. glucagon b. melatonin c. thyroid hormone d. parathyroid hormone

Match the term listed at left with the most suitable description at right. _________adrenal medulla _________thyroid gland _________parathyroid glands _________pancreatic islets _________pineal gland _________prostaglandin a. affected by day length b. has potent local effects c. raises blood calcium level d. source of epinephrine e. secretes insulin, glucagon f. hormones require iodide