Exam 17: The Endocrine System

Even a small quantity of hormone can have a strong effect on its target cell because of

Both the thymus and the pineal gland shrink after childhood.

has more target cells in the body than any of the others.

Hormones serve as intracellular messengers.

Many effects of growth hormone are mediated by insulin-like growth factors (IGFs) secreted by the pancreas.

This figure shows the major organs of the endocrine system.What does "1" represent?

These are all secreted by the pancreas except

The exhaustion stage of the general adaptation syndrome (stress response) sets in only if protein reserves are depleted.

What makes a cell responsive to a particular hormone?

This figure shows the hypothalamo-pituitary-target organ relationships.Which hormone is not a tropin?

Prostaglandins are considered paracrines.

secretion is controlled by neuroendocrine reflexes, whereas secretion is controlled by negative feedback mechanisms.

Antidiuretic hormone (ADH) targets the

During the exhaustion stage of the general adaptation syndrome (stress response) stress overwhelms homeostasis.A characteristic of this stage is that

Thyrotropin-releasing hormone targets the

The secretes a hormone that increases the body's metabolic rate, promotes alertness , quickens reflexes, and stimulates the fetal nervous system.

Cholesterol is essential for the synthesis of steroid hormones.

Growth hormone (GH) hypersecretion causes gigantism when it begins in childhood, but it is more likely to cause when it begins in adulthood.

Testosterone is a gonadotropin.

These statements about diabetes mellitus (DM) are correct except