Chapter Questions
Define hormone and target cell.
Contrast endocrine glands and exocrine glands.
Compare and contrast chemical communication in the nervous and endocrine systems.
Explain the specificity of a hormone for its target cell.
Functions of hormones include which of the following?a. control rates of certain chemical reactionsb. transport substances across cell membranesc. help regulate water and electrolyte balancesd. all of the above
List the steps of steroid hormone action.
List the steps in the action of most nonsteroid hormones.
Explain how prostaglandins are similar to hormones and how they are different.
Draw diagrams of the three mechanisms by which hormone secretion is controlled, including negative feedback.
Describe the location and structure of the pituitary gland.
Explain the two ways in which the brain controls pituitary gland activity.
Releasing hormones come from which one of the following?a. thyroid glandb. anterior pituitary glandc. posterior pituitary glandd. hypothalamus
List the hormones secreted by the anterior pituitary.
Match the following hormones with their actions. More than one hormone can correspond to the same function.(1) growth hormone(2) thyroid-stimulating hormone(3) prolactin(4) adrenocorticotropic hormon(5) follicle-stimulating hormone(6) luteinizing hormoneA. milk productionB. cell divisionC. metabolic rateD. exerts action on gonadsE. controls secretion of adrenal cortex hormones
Describe the control of growth hormone secretion.
Prolactin does which of the following?a. stimulates breast milk secretionb. stimulates breast milk productionc. inhibits breast milk secretiond. inhibits breast milk production
Diagram the control of thyroid hormone secretion.
Describe the anatomical differences between the anterior and posterior lobes of the pituitary gland.
Describe the functions of the posterior pituitary hormones.
Under which of the following conditions would you expect an increase in antidiuretic hormone secretion?a. An individual ingests excess water.b. The posterior pituitary is removed from an individual because of a tumor.c. An individual is rescued after three days in the desert without food or water.d. An individual with normal kidneys is producing a large volume of urine.
Describe the location and structure of the thyroid gland.
Match the hormones from the thyroid gland with their descriptions.(1) thyroxineA. most potent at controlling metabolism(2) triiodothyronineB. regulates blood calcium(3) calcitoninC. has four iodine atoms
List the source of control for each thyroid hormone.
Describe the location and structure of the parathyroid glands.
Explain the general function of parathyroid hormone.
Draw a diagram that shows how the secretion of parathyroid hormone is regulated.
Distinguish between the adrenal medulla and the adrenal cortex.
Match the adrenal hormones with their source and actions.(1) cortisolA. cortex; sodium retention(2) aldosteroneB. cortex; fatty acid release(3) epinephrineC. medulla; fight-or-flight response
Draw a diagram illustrating the regulation of cortisol secretion.
Describe the location and structure of the pancreas.
List the hormones secreted by the pancreatic islets, the type of cell that secretes each, and the actions of these hormones.
Draw a diagram that shows how the secretion of pancreatic hormones is regulated.
Describe the location and general function of the pineal gland.
Describe the location and general function of the thymus.
Name five additional hormone-secreting organs.
Define stress.
List the similarities and differences between the short-term alarm stage of stress and the longterm resistance stage.