BMS TEST A&P 2_CH 16 (ENDOCRINE SYSTEM)
Steroid hormones exert their action by ___.
a. binding cell receptors and initiating cAMP activity
b. entering the nucleus of a cell and initiating or altering the expression of a gene
c. entering the cell and activating mitochondrial DNA
d. activating the hypothalamic release of regulating hormones - Answers - b. Entering
the nucleus of a cell and initiating or altering the expression of a gene.
The second-messenger mechanism of hormone action operates by ________.
a. synthesizing more than one hormone at a time
b. increasing the basal metabolic rate in the target organ
c. binding to specific receptors and employing the services of G proteins and cAMP
d. altering gene expression in the nuclear DNA - Answers - c. binding to specific
receptors and employing the services of G proteins and cAMP.
Which of the following is not a category of endocrine gland stimulus?
a. neural
b. humoral
c. hormonal
d. enzyme - Answers - d. Enzyme
Which of the following is NOT a property of endocrine glands?
a. They have ducts.
b. They drain vascularly.
c. They drain lymphatically.
d. They produce hormones. - Answers - a. They have ducts.
Chemical substances secreted by cells into the extracellular fluids and that regulate the
metabolic function of other cells in the body are called ________.
a. antibodies
b. proteins
c. enzymes
d. hormones - Answers - d. Hormones
Which of the following occurs in situations where more than one hormone produces the
same effects at the target cell and their combined effects are amplified?
a. synergism
b. summation
c. antagonism
d. permissiveness - Answers - a. Synergism
Hormones that regulate the secretory action of other endocrine glands are called
__________.
a. tropins
, b. GHIH
c. somatotropin
d. somatostatins - Answers - a. Tropins
The stimuli causing endocrine glands to secrete their hormones in direct response to
changing blood levels of certain critical ions and nutrients are called __________.
a. endocrinal stimuli
b. hormonal stimuli
c. neural stimuli
d. humoral stimuli - Answers - d. Humoral stimuli
Virtually all of the protein or amino acid-based hormones exert their effects through
intracellular ________.
a. calcium
b. nucleotides
c. second messengers
d. deactivating ions - Answers - c. Second messengers
Which of the following hormones stimulates the adrenal cortex to release
glucocorticoids that help the body to resist stressors?
a. follicle-stimulating hormone
b. prolactin
c. thyroid-stimulating hormone
d. adrenocorticotropic hormone - Answers - d. Adrenocorticotropic hormone
Which of the following hormones mainly serves to stimulate milk production by the
breasts?
a. follicle-stimulating hormone
b. prolactin
c. adrenocorticotropic hormone
d. thyroid-stimulating hormone - Answers - b. Prolactin
Which of the following is not a type of hormone interaction?
a. synergism
b. feedback
c. permissiveness
d. antagonism - Answers - b. Feedback
The ability of a specific tissue or organ to respond to the presence of a hormone is
dependent on ________.
a. the location of the tissue or organ with respect to the circulatory path
b. nothing-all hormones of the human body are able to stimulate any and all cell types
because hormones are powerful and nonspecific
c. the presence of the appropriate receptors on the cells of the target tissue or organ
d. the membrane potential of the cells of the target organ - Answers - c. The presence
of the appropriate receptors on the cells of the target tissue or organ.
Steroid hormones exert their action by ___.
a. binding cell receptors and initiating cAMP activity
b. entering the nucleus of a cell and initiating or altering the expression of a gene
c. entering the cell and activating mitochondrial DNA
d. activating the hypothalamic release of regulating hormones - Answers - b. Entering
the nucleus of a cell and initiating or altering the expression of a gene.
The second-messenger mechanism of hormone action operates by ________.
a. synthesizing more than one hormone at a time
b. increasing the basal metabolic rate in the target organ
c. binding to specific receptors and employing the services of G proteins and cAMP
d. altering gene expression in the nuclear DNA - Answers - c. binding to specific
receptors and employing the services of G proteins and cAMP.
Which of the following is not a category of endocrine gland stimulus?
a. neural
b. humoral
c. hormonal
d. enzyme - Answers - d. Enzyme
Which of the following is NOT a property of endocrine glands?
a. They have ducts.
b. They drain vascularly.
c. They drain lymphatically.
d. They produce hormones. - Answers - a. They have ducts.
Chemical substances secreted by cells into the extracellular fluids and that regulate the
metabolic function of other cells in the body are called ________.
a. antibodies
b. proteins
c. enzymes
d. hormones - Answers - d. Hormones
Which of the following occurs in situations where more than one hormone produces the
same effects at the target cell and their combined effects are amplified?
a. synergism
b. summation
c. antagonism
d. permissiveness - Answers - a. Synergism
Hormones that regulate the secretory action of other endocrine glands are called
__________.
a. tropins
, b. GHIH
c. somatotropin
d. somatostatins - Answers - a. Tropins
The stimuli causing endocrine glands to secrete their hormones in direct response to
changing blood levels of certain critical ions and nutrients are called __________.
a. endocrinal stimuli
b. hormonal stimuli
c. neural stimuli
d. humoral stimuli - Answers - d. Humoral stimuli
Virtually all of the protein or amino acid-based hormones exert their effects through
intracellular ________.
a. calcium
b. nucleotides
c. second messengers
d. deactivating ions - Answers - c. Second messengers
Which of the following hormones stimulates the adrenal cortex to release
glucocorticoids that help the body to resist stressors?
a. follicle-stimulating hormone
b. prolactin
c. thyroid-stimulating hormone
d. adrenocorticotropic hormone - Answers - d. Adrenocorticotropic hormone
Which of the following hormones mainly serves to stimulate milk production by the
breasts?
a. follicle-stimulating hormone
b. prolactin
c. adrenocorticotropic hormone
d. thyroid-stimulating hormone - Answers - b. Prolactin
Which of the following is not a type of hormone interaction?
a. synergism
b. feedback
c. permissiveness
d. antagonism - Answers - b. Feedback
The ability of a specific tissue or organ to respond to the presence of a hormone is
dependent on ________.
a. the location of the tissue or organ with respect to the circulatory path
b. nothing-all hormones of the human body are able to stimulate any and all cell types
because hormones are powerful and nonspecific
c. the presence of the appropriate receptors on the cells of the target tissue or organ
d. the membrane potential of the cells of the target organ - Answers - c. The presence
of the appropriate receptors on the cells of the target tissue or organ.
