Exam 42: The Endocrine System

If a hormone caused an increase in protein kinase activity, predict the type of hormone responsible and the intracellular signaling mechanism of its action.

Increases in melanocyte-stimulating hormone (MSH) could result in increased pigmentation.

The parathyroid gland ____.

Metamorphosis to adult frogs would not occur. You are studying the hormonal control of metamorphosis in amphibians. If the anterior pituitary was prevented from releasing TSH, what would be the effect on tadpoles?

Prostaglandins are under neuroendocrine regulation.

Cortisol is a ____ secreted by the ____.

Your job is to determine if a steroid hormone is having an effect on its target tissue. Which response would indicate activation of the target tissue by the hormone in question?

The ____ hormones are vital to growth, development, maturation, and metabolism in all vertebrates.

Overproduction of the mineralocorticoid ______ causes excessive water retention.

Small quantities of hormone can result in profound responses in target tissues. This type of response is referred to as ____.

FIGURE 42.8 -Answer the question using the accompanying figure. During metamorphosis of a tadpole, TSH is active at ____.

Biological rhythms and the onset of sleep are regulated by ____ produced by the ____.

The ovaries are regulated by the____.

Which statement about steroid hormones in invertebrates and vertebrates is most accurate?

Which hormones enter cells and alter mRNA production?

The regulation of water balance, milk release, and uterine contractions during childbirth are mediated by the ____ gland.

Hormones are cleared from the body by endocrine glands .

Cyclic AMP activity is associated with hydrophobic hormones.

Ovaries produce ____ to prepare the uterus prior to implantation of a fertilized egg.