|
True or False: In humans, melatonin may inhibit sexual maturation. |
True |
|
True or False: The antagonistic hormones that regulate the blood calcium level are calcitonin-parathormone. |
True |
|
True or False: The hormone that raises blood sugar levels is insulin. |
False |
|
True or False: The endocrine structure that develops from the nervous system is the anterior pituitary. |
False |
|
True or False: Both "turn on" factors (hormonal, humoral, and neural stimuli) and "turn off" factors (feedback inhibition and others) may be modulated by the activity of the nervous system. |
True |
|
True or False: ACTH stimulates the adrenal cortex to release corticosteroid hormones. |
True |
|
True or False: LH is also referred to as a gonadotropin. |
True |
|
True or False: The only known effect of prolactin in humans is to produce impotence in males. |
False |
|
True or False: Oxytocin is a strong stimulant of uterine contractions. |
True |
|
True or False: Follicle cells of the thyroid gland produce thyroglobulin, while follicle cells of the parathyroid produce calcitonin. |
False |
|
True or False: The thyroid gland is embedded in the parathyroid tissue. |
False |
|
True or False: The prime metabolic effect of cortisol is gluconeogenesis. |
True |
|
True or False: The beta cells are the pancreatic islet cells that produce insulin. |
True |
|
True or False: Peptide hormones enter the target cells and elicit a response by mediating neurotransmitter effects. |
False |
|
True or False: Calcitonin is a peptide hormone that has destructive effects on the skeletal system. |
False |
|
True or False: Aldosterone is the most potent mineralocorticoid produced in the adrenals but the least abundant. |
False |
|
True or False: Atrial natriuretic peptide is a hormone that controls blood pressure in part by increasing the urinary excretion of sodium |
True |
|
True or False: While glucagon is a small polypeptide, it is nevertheless very potent in its regulatory effects. |
True |
|
True or False: The thyroid gland is a large gland that controls metabolic functions throughout the life of an individual. |
True |
|
True or False: Many hormones synthesized in the gastrointestinal tract are chemically identical to brain neurotransmitters. |
True |
|
True or False: All of the following hormones are secreted by the adenohypophysis: ACTH, FSH, and LH. |
True |
|
True or False: Iodine is an essential element required for the synthesis of thyroxine. |
True |
|
True or False: The endocrine gland that is probably malfunctioning if a person has a high metabolic rate is the parathyroid. |
False |
|
True or False: Growth hormone always exerts its influence by targeting other endocrine glands to produce hormones. |
False |
|
True or False: Diabetes insipidus and diabetes mellitus are both caused by a genetic mutation involving the synthesis of insulin. |
False |
|
True or False: The stimulus for calcitonin release is usually excessive amounts of growth hormone synthesis. |
False |
|
True or False: Glucocorticoids are steroid hormones that usually enhance the immune responses when an individual is suffering from severe stress. |
False |
|
True or False: Direct gene activation involves a second-messenger system. |
False |
|
True or False: All peptide hormone synthesis requires gene activation that produces mRNA. |
True |
|
True or False: All adenohypophyseal hormones except GH affect their target cells via a cyclic AMP second-messenger. |
True |
|
The size and shape of a pea; produces hormones that stimulate other endocrine glands. |
Hypophysis |
|
The gland that controls the fight-or-flight reaction. |
Adrenal Medulla |
|
Produces hormones that regulate glucose levels in the body. |
Pancreas |
|
Produces a hormone that controls blood levels of calcium and potassium by their removal from bone tissue. |
Parathyroid |
|
Produces the body’s major metabolic hormones. |
Thyroid |
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