Exam 29: Animal Hormones

A(n)____________________ is a specialized organ in which hormones are produced.

Luteinizing hormone and follicle-stimulating hormone both come from the pituitary gland.

The graph below shows the levels of estrogen and progesterone over the course of the menstrual cycle. What event is caused by the rapid decrease in hormones in the region indicated by the arrow in the upper right portion of the graph?

The parathyroid gland of a person with hyperparathyroidism produces very high levels of parathyroid hormone (PTH). You would expect a person with this condition to have

The hormone-producing tissues of animals make up the ____________________ system.

The pancreas regulates ____________________ levels in the blood by producing a pair of antagonistic hormones.

In a human female, the hormone ____________________ controls the development of female reproductive structures.

Inadequate amounts of one hormone does not affect production of another hormone.

Which of the following hormones are not produced by gonads?

Four to six weeks after conception, sex hormones trigger the production of the appropriate male or female ____________________, or sex organs, in an embryo.

Which of the following acts to lower blood glucose levels?

Hormone replacement therapy (HRT)has been linked to

Adrenalin and norepinephrine

Which hormone below is the antagonist of insulin?

Serotonin, one of the hormones thought to be involved in depression, is a water-soluble molecule. Where on the target cell would you expect to find receptors for this hormone?

Once a hormone enters the bloodstream, it

The target cells of epinephrine and norepinephrine are in the

In a human male, the ____________________ secrete hormones that coordinate the development of male reproductive structures.

The beginning of ____________________ is marked by a sudden rise in sex hormone production by the gonads of adolescent humans.

A single hormone molecule can have dramatic effects on a target cell, because it