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Du hast 20 Minuten um die 25 Fragen in diesem Quiz zu beantworten.
Which of the following organs has both endocrine and exocrine functions?
The adrenal gland
The salivary glands
The ovary
The pineal gland
The thymus
Diabetes insipidus is caused by __________.
epinephrine hypersecretion
cortisol hypersecretion
aldosterone hypersecretion
antidiuretic hormone (ADH) hyposecretion
antidiuretic hormone (ADH) hypersecretion
Addison disease is a consequence of a tumor of the adrenal medulla.
Aspirin and ibuprofen block the __________.
release of arachidonic acid from the plasma membrane
action of phospholipase A1
action of phospholipase A2
action of lipoxygenase
action of cyclooxygenase
The hypophyseal portal system connects the _________ with the _________.
anterior pituitary; hypothalamus
posterior pituitary; hypothalamus
anterior pituitary; posterior pituitary
hypothalamus; thyroid
pituitary glands; thyroid
Eicosanoids are derived from steroids.
Which of the following effects on a gland can be caused by a tumor?
Hypersecretion only
Hyposecretion only
Hyposecretion and hypersecretion
The __________ secrete(s) __________, which promotes Na+ and water retention.
adrenal medulla; epinephrine
pancreas; cortisol
kidneys; corticosterone
adrenal cortex; aldosterone
thyroid; calcitonin
Which of the following is true regarding endocrine glands?
They secrete substances that do not alter the metabolism of their target cells, but have extracellular effects.
They secrete their products by way of ducts.
They release their secretions into the blood.
They have an unusually low density of blood capillaries.
Their secretions may be released onto the body surface.
Which of the following statements about diabetes mellitus is false?
The body produces autoantibodies that destroy the pancreatic beta cells in type I DM.
Target cells are unresponsive to insulin in type II DM.
Both type I and type II DM are characterized by lack of, or low levels of, insulin.
Diabetic neuropathy is a common long term effect of DM.
Type II DM is more common than type I DM.
Both the thymus and the pineal gland shrink after childhood.
Eicosanoids are derived from __________.
arachidonic acid
leukotriene
prostacyclin
prostaglandins
thromboxanes
Which of the following is not secreted by the pancreas?
Glucagon
Pancreatic polypeptide
Gastrin
Somatostatin (growth hormone-inhibiting hormone)
Somatotropin (growth hormone)
Which of the following is the correct abbreviation for the hormone that stimulates the anterior pituitary to secrete ACTH?
CRH
GHRH
GHIH
APRH
TRH
The __________ secretes several hormones that stimulate the development of lymphatic organs and regulates development and activity of T cells (white blood cells).
thyroid
thymus
adrenal gland
spleen
parathyroid
Many effects of growth hormone are mediated by insulin-like growth factors (IGFs) secreted by the pancreas.
Peptide hormones are synthesized by cytoplasmic ribosomes as active enzymes.
Which of the following is not a hypothalamic hormone?
Antidiuretic hormone (ADH)
Luteinizing hormone (LH)
Thyrotropin releasing hormone (TRH)
Somatostatin
Prolactin-inhibiting hormone (PIH)
The _________ secretes growth hormone, which is also known as somatotropin.
posterior pituitary
anterior pituitary
hypothalamus
Cholesterol is essential for the synthesis of steroid hormones.
Testosterone is a gonadotropin.
Antidiuretic hormone (ADH) targets the __________.
kidneys
pancreas
Negative feedback inhibition occurs when __________.
thyrotropin-releasing hormone (TRH) targets the anterior pituitary
thyrotropin-releasing hormone (TRH) causes the anterior pituitary to release thyroid-stimulating hormone (TSH)
thyrotropin-releasing hormone (TRH) targets the thyroid gland
thyroid-stimulating hormone (TSH) targets the thyroid gland
thyroid hormone (TH) targets the anterior pituitary
Which of these hormones does not stimulate the release of another hormone by its target cells?
TSH
GRH
ACTH
PRL
Myxedema is characterized by low metabolic rate, sluggishness, and sleepiness.