endocrine system questions (74-89)

The following is a list of events involved in the activation of a cell by a steroid hormone. Which one of the following answers best represents the order in which the steps occur? 1. cellular response to the hormone 2. activation of a gene 3. formation of a hormone-receptor complex 4. diffusion of the hormone through a target cell membrane 5. production of a protein

4, 3, 2, 5, 1

A goiter results from low dietary iodine levels

because thyroxine cannot be made, which results in high levels of TSH

Nonsteroid hormones differ from steroid hormones in that they

bind to a receptor on the outer surface of the cell membrane.

An individual, driving through his neighborhood, suddenly jams on his car brakes to avoid hitting a child who runs into the road after a ball. A few seconds later, the driver finds that he is shaking and his heart is pounding. This is primarily due to the secretion of which one of the following?

epinephrine from the adrenal medulla

Uptake of blood glucose by liver cells is stimulated by

insulin

The pituitary gland is often called the "master of the endocrine system" because

it secretes eight different hormones that in turn regulate many of the other endocrine glands.

.Which of the following tissues/organs is NOT a member of the endocrine system?

salivary gland

Hormones act upon specific target tissues because

target tissues display the appropriate receptor for a particular hormone

FSH is a hormone important to the proper functioning of the ovaries and testes. This hormone will not be released from the anterior pituitary until ________ is released from the hypothalamus.

gnRH

The anterior pituitary gland produces all of the following EXCEPT which one?

ADH (antidiuretic hormone)

Luteinizing hormone is considered a gonadotropin because of which one of the following reasons?

It promotes the growth of reproductive organs in both males and females.

Which one of the following hormones stimulates the production of testosterone in males?

LH

Hyposecretion of ADH results in A) stimulation of protein synthesis. B) reduced uptake of blood glucose. C) diabetes insipidus. D) an increase in the mass and length of bones. E) overstimulation of cell division

diabetes insipidus

Which one of the following hormone pairs is antagonistic, in that they have opposing effects?

glucagon, insulin

Which two endocrine glands exert the most control over blood calcium levels?

thyroid and parathyroid