Ch45 Flashcards
What is the role of a second messenger in hormone action
It relays a hormones message inside a target cell
Which one of the following endocrine organs does not actually manufacture hormones but, rather, stores hormones produced elsewhere?
Posterior pituitary
A doctor might give an expectant mother ____ to stimulate uterine contractions (induce labor)
Oxytocin
The regulation of water volume in the blood involves which hormone
ADH
How does the hypothalamus control the secretion of growth hormone from the anterior pituitary
The hypothalamus produces a releasing hormone that stimulates the anterior pituitary to secrete GH
Which of the following hormones specifically acts to trigger secretion of hormones by another endocrine gland
Adrenocorticotropic hormone
The mammary glands of a pregnant female will begin to produce milk in response to hanged in the level of which of the following hormones
Prolactin
Hyperthyroidism typically characterized by a high metabolic rate and high blood pressure might be expected when
Thyroid stimulating hormone concentration is high
Which of the following hormones have antagonistic effects
Insulin and glucagon
In the winter, the ____ of many vertebrates is apt to produce ____ than in summer months
Pineal gland
More melatonin
Which of he following is a hormone secreted by the posterior pituitary
Oxytocin
FSH and LH are hormones known as
Gonadotropins
Which disorder is correctly matched with its cause
Pituitary dwarfism
Hyposecretion of growth hormone
If a diet is deficient in iodine, a goiter may form because ____
Low blood levels of T3 and T4 inhibit the negative feedback loop. And overload of TSH causes enlargement of the gland
Every time you eat a cookie or candy bar, your blood sugar increases. This triggers an increase in the hormone
Insulin
Cortisol and estrogen are ___ hormones and thus the protein receptors for these hormones are ____ the target cells
Lipid soluble
Inside
The adrenal gland is ____ and secretes hormones such as ____
Near the kidney
Norepinephrine and corticosteroids
Which of the following incorrectly matches hormone with its effect
LH
Controls maturation of T cells
Cyclic changes in secretion of a hormone from the ____ gland regulates daily and seasonal rhythms in an animal
Pineal
Calcitonin is secreted from the ____ and acts to ____ blood calcium
Thyroid gland
Decrease
Which of the following hormones is not secreted by the anterior pituitary
Melatonin
The ____ produces a hormone that controls maturation of t lymphocytes
Thymus
Hormones produced by the ____ help coordinate the release of pancreatic enzymes
Small intestine
Which of the following organs does not contain cells that secrete hormones
Liver
____ stimulates oogenesis and spermatogenesis
FSH
