Study sets, textbooks, questions
Upgrade to remove ads
Unit 3 endocrine system quizzes
Terms in this set (30)
steroid hormones exert their action by
entering the nucleus of a cell and initiating or altering the expression of a gene
Enterochromaffin-like cells of the gastric mucosa can be triggered to release histamine. histamine, in this case, causes nearby parietal cells of the stomach lining to produce hydrochloric acid. the effect of histamine on parietal cells would best be described as
which of the following is NOT a change typically produced by a hormonal stimulus
stimulates production of an action potential
Chemical substances secreted by cells into the extracellular fluids that travel throughout the blood and that regulate the metabolic function of other cells in the body are called ________.
the second messenger-mechanism of hormone action operates by
binding to specific receptors and employing the services of G proteins and cAMP
the single most important regulator of calcium levels in the blood is
Johanna, a 7-year-old girl, is significantly shorter for her age. her Dr recommends treatment with a hormone before her growth plates ossify in her long bones. what hormone is recommended?
Mineralocorticoid is to aldosterone as glucocorticoid is to ________.
Which anterior pituitary hormone does NOT target another endocrine gland?
growth hormone (GH)
Antidiruetic hormone (ADH)
secretion is inhibited by alcohol
the hypothalamic- hypophyseal tract?
runs through the infundibulum
As a result of stress the anterior pituitary releases ________, which stimulates release of hormones from the adrenal cortex that retain sodium and water, increase blood sugar, and begin breaking down fats.
regarding hormones from the hypothalamus
first enter the hypophyseal portal system
Several hormones are synthesized in the hypothalamus and transported to the anterior pituitary gland. The mechanism of transportation from hypothalamus to anterior pituitary gland is through the ________.
hypophyseal portal system
Hormones often cause a cell to elicit multiple responses; this is because ________.
during protein kinase activation, enzymes phosphorylate many other enzymes
in circumstances where the body requires prolonged increased levels of a hormone, the DNA of target cells will specify the synthesis of more receptors on the surface of the cells of the target organ. this is known as
which of the following is NOT a category of endocrine gland stimulus
which of the following is not a component of the cyclic AMP signaling mechanism
The effect of a hormone on a target cell may be decreased by the presence of ________.
which of the following is NOT a typical result of a long-term stress response?
decreased production of glucocorticoids
the major targets of growth hormone are
liver, bones, and skeletal muscles
which of the following is correctly matched ?
zona reticularis — gonadocorticoids
release is an example of a positive feedback control mechanism
During an afternoon class, Lisa starts to feel hungry and worries that her blood sugar level may be dropping. Which hormone is helping to prevent a drop in blood sugar level?
One of the least complicated of the endocrine control systems directly responds to changing blood levels of ions and nutrients. Which of the following describes this mechanism?
which of the following statements is true of amino acid-based hormones?
they require a receptor in the plasma membrane
the ability of a specific tissue or organ to respond to the presence of a hormone is dependent on
the presence of the appropriate receptors on the cells of the target tissue or organ
Virtually all amino acid-based hormones exert their signaling effects through intracellular ________.
which of the following can act on receptors inside the target cell that directly activate specific genes
Sets with similar terms
The Endocrine System (Test 1, Ch. 18)
Mastering A&P: Endocrine system
A&P Chapter 16 Pearson
Other sets by this creator
micro exam 3
Lab exam 1
micro exam 2
micrbio exam 1
Other Quizlet sets
CH 21, 22, 23, 24
Healthful Living Chapter 7