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42 terms

quiz 4 endocrine

STUDY
PLAY
Which of the following are catabolic processes?
Glycogenolysis; Gluconeogenesis; Lipolysis;
All are correct
Which of the following is an effect of hyperthyroidism?
High BMR;
Rapid pulse;
Increased T4 in plasma;
All are correct
Most tissues are targets for
GH
A tumor stimulating oversecretion of hormones by the thyroid gland would cause plasma Ca2+ to increase.
False
Which of the following is a characteristic of a steroid hormone?
Nonpolar; produced from cholesterol;
transported by a carrier protein;
All are correct
The anterior pituitary gland is also called the neurohypophysis.
False
Protein hormones bind to receptors located within the plasma membrane.
True
How is melatonin secretion regulated?
though the effect of light/dark cycles on the brain
Epinephrine and norepinephrine, like some other polar hormones, use _____ as a second messenger.
cyclicAMP
Oxytocin synthesis occurs in the neurohypophysis.
False
Which of the following hormones promotes anabolism?
Insulin
__________ is a potent mineralocorticoid that helps increase blood volume and pressure.
Aldosterone
Diabetes mellitus occurs due to lack of pancreatic b-cell function.
True
Regulation of mineral homeostasis would be inhibited due to decreased secretion of
Corticotropin releasing hormone
Which of the following is NOT one of the three functional categories of corticosteroids?
Thyrocorticoids
What are the three functional categories of corticosteroids?
Mineralocorticoids; Glucocorticoids; Sex steroids
The hypothalamo-hypophyseal portal system transports
releasing hormones; inhibiting hormones; Both are correct
Types of polar hormones include polypeptides, proteins, and glycoproteins.
True
Which of the following is NOT a corticosteroid?
Melatonin
Which of the following is a corticosteroid?
Androstenedione; glucocorticoid; mineralocorticoid;`
All are correct
Melatonin secretion is greatest at night.
True
Aldosterone functions in the conservation of _____.
Water; sodium
melatonin is a corticosteroid. TF
False
Growth is inhibited by
Increasing somatostatin secretion
Which of the following is a posterior pituitary hormone?
Oxytocin and ADH
The conversion of noncarbohydrate molecules like amino acids into glucose is called _____.
GLYCOGENOLYSIS
Cortisol secretion would cease if the _________ no longer secreted ACTH.
Anterior pituitary gland
The adrenal cortex is involved in Regulation of reproduction TF
True
The ____________ has a cortex and a medulla each of different embryonic origin.
Adrenal gland
Carrier proteins would be required by
Aldosterone
Increased circulating concentrations of testosterone stimulates
Decreased secretion of luteinizing hormone
A(n) _____________ is an abnormal growth of the thyroid gland due to an iodine deficiency.
Goiter
_______________ refers to all of the chemical changes within the cells of the body.
Metabolism
Under prolonged stress, the general adaptation syndrome maintains high blood cortisol levels in opposition to negative feedback control.
True
Individuals with type 2 diabetes mellitus may produce more insulin than normal.
True
Types of polar hormones include polypeptides, proteins, and glycoproteins.
True
Polypeptide and glycoprotein hormones can be taken orally.
False
Over secretion of parathyroid hormone increases basal metabolic rate and may cause weight lose.
False
Over secretion of thyroxine increases basal metabolic rate and may cause weight lose.
True
Inhibition of luteinizing hormone secretion would inhibit testosterone synthesis.
True
Thyroid hormones, thyroxine and triiodothyronine, are nonpolar and can cross plasma membranes.
true
Lipophilic hormones travel in the blood bonded to carrier proteins.
True