Exam 5: The Central Nervous System

Steroid hormones act through the second-messenger system.

____________________ consist of a chain of specific amino acids of varying length.

Peptide hormones cause changes in solute permeability or alter intracellular protein activity at their targets.

Growth hormone directly stimulates bone growth.

Which of the following correctly describes hormones produced in the anterior pituitary?

Which of the following events is stimulated by LH?

Vasopressin and ____________________ are produced in the hypothalamus and stored in the posterior pituitary gland.

____________________ are released into the blood by neurosecretory neurons.

Steroid hormones are first produced in an inactive form.

Which of these statements represents long-loop, negative feedback in the CRH-ACTH-cortisol system?

____________________ are hormones derived from cholesterol.

Permissiveness refers to the conversion of inactive enzymes into active enzymes by hormones, thus permitting the enzymes to perform their function.

Plasma concentrations of a hormone are normally regulated by changes in secretion rate.

The primary means of eliminating hormones and their metabolites from the blood is ____________________.

Chondrocytes are bone cells that are affected by the growth hormone.

____________________ are long-range chemical mediators secreted by endocrine glands into the blood, which carries them to distant target organs.

Lipophilic (hydrophobic) hormones circulate in the blood largely bound to plasma proteins.

Match posterior and anterior pituitary, labelled a. through c., with their features. (Options may be used more than once or not at all.) a. applies to the posterior pituitary b. applies to the anterior pituitary c. applies to both the posterior and the anterior pituitary -Its release of hormones is directly controlled by action potentials.

Which of the following statements concerning bone cells is correct?

Which one of these hormones signals the kidneys to control water balance?