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CH16 - Endocrine Sys

Which of the following is NOT a major endocrine organ, but produces hormones in addition to its major function? Kidneys
Steroid hormones influence cellular activities by: binding to DNA and forming a gene-hormone complex.
Sympathetic nerve stimuli are responsible for the release of: epinephrine
The chemical classification of hormones does NOT include: glucose-containing hormones.
The metabolic rate of most body tissues is controlled directly by: TH
The secretion of parathyroid hormone is a good example of: humoral stimuli.
The stimulus for producing insulin is: high blood glucose concentration.
The transcription of new messenger RNA is a function of: steroid hormones.
Which of the following elements is required for the synthesis of thyroid hormone? Iodine
The hypophyseal portal system transports releasing and inhibiting hormones from the hypothalamus to the: anterior pituitary gland (adenohypophysis).
Which of the following signals would affect local cells by releasing chemicals into the extracellular fluid? Paracrine
Which of the following is the property in which a hormone CANNOT exhibit its full effect without another hormone? Permissiveness
Which of the following is NOT a true hormone, but, rather, a trophic substance? TSH
Which of the following organs is considered a neuroendocrine organ? Hypothalamus
Eicosanoids are not true hormones because they: they act locally, not on distal organs as do true hormones.
How do protein kinases affect enzymes? They add a phosphate group (phosphorylation) to the enzyme
The "hormone response element" is located on the cell: DNA
The binding of a hormone to its "hormone response element" would lead to the: transcription of the DNA for the gene that is "turned on" by this event.
Water-soluble hormones exhibit the shortest: half-life.
The normal endocrine controls can be directly overridden by the _________ system. nervous
POMC is a prohormone for: ACTH
Excess growth hormone would cause all the following, except: suppression of cancer.
Hypersecretion of ADH can occur in all of the following situations, except: damage to the pineal gland.
Iodination of thyroid hormones is mediated by: peroxidase enzymes.
A congenital condition that includes mental retardation, short disproportional body size, and a thick tongue and neck is caused by: deficiency of thyroxin.
Osteitis fibrosa cystica is caused by: an increase in the parathyroid hormone.
Insulin enhances the membrane transport of glucose in all of the following, except the: brain
Resistin, an insulin antagonist, is a hormone produced by the: adipose tissue.
Which of the following hormones does the skin produce? Cholecalciferol
Somatostatin is considered paracrine because it acts on: cells other than those that secrete it.
Endocrinology involves the study of the endocrine organs and ______________. hormones
Which of the following is not an endocrine gland? Adenoid gland
Autocrines are long-distance chemical signals that travel in blood or lymph throughout the body. False
Steroids are synthesized from: Cholesterol
Any given hormone will influence the activity of ___________. its target cells
In which of the following mechanisms of hormone action do intracellular calcium ions act as a final mediator? PIP2-calcium signaling mechanism
Down-regulation involves the loss of receptors and prevents the target cells from overreacting to persistently high hormone levels. True
When one hormone opposes the action of another hormone, the interaction is called _____. antagonism
Which of the following occurs within a negative feedback system? Target organ effects inhibit further hormone release.
Which of the following is not one of the three major types of stimuli to trigger endocrine glands to manufacture and release their hormones? endocrinal stimuli
The anterior pituitary is known as the "master endocrine gland" because it controls the hypothalamus. False
Which of the following stimulates most body cells to increase in size and divide? Growth hormone
Which of the following homeostatic imbalances results from hyposecretion of growth hormone? Pituitary dwarfism
Which of the following hormones stimulates gamete (sperm or egg) production? Follicle-stimulating hormone
As blood levels of ___________ rise, the expulsive contractions of labor gain momentum and finally end in birth. oxytocin
Which of the following is not one of the areas in which thyroid hormone (TH) plays an important role? Helping the body avoid dehydration and water overload
The cells found within the parathyroid gland that secrete parathyroid hormone are called _______. chief cells
Which of the following conditions, if left untreated, progresses to respiratory paralysis and death? Hypoparathyroidism
Which of the following homeostatic imbalances usually results from deficits in both glucocorticoids and mineralocorticoids? Addison's disease
Created by: navyguy36