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30 Cards in this Set

  • Front
  • Back
A hormone that regulates gamete production A) acth B) TSH
B) FSH
Steroids or amino based molecules released into blood which arouse tissue A) Hormones B) GH
A) hormones
Produces testosterone A) gonadocorticoid B) Testis
B) testis
Its primary function is to control the rate of body metabolism and cellular oxidation A) TH B) TSH
A) TH
synthesizes insulin A) Beta Cells B) insulin
B) Beta Cells
consists of two functional areas: the adrenohypophysis and neurohypophysis A) andrenal gland B) pituitary gland
B) pituitary gland
controlled by the sympathetic nervous system and release epinephrine and norepinephrine A) adrenal cortex B) adrenal medulla
B) adrenal medulla
Regulates the endocrine activity of the cortex portion of the adrenal gland A) CRH B)ACTH
ACTH
one of the hormones that stimulate breast developement and promotes and maintains lactation after birth A) oxtocin B) prolactin
B) prolactin
A hormone produced in the adrenal cortex that enables the body to resist long term stress A) mineralcorticoid B) glucocorticoid
B) glucocorticoid
Gluconeogenisis occurs in the liver due to the action of A) aldesterone B) cortisol
B) cortisol
Virtually all of the protein or amino based hormones exert their effects through intracellular A) second messengers B) ions
A) second messengers
Oxytocin: A) release is an example of positive feedback control mechanism B) Exerts most of its effects during menstruation
A) release is an example of a posite feed back mechanism
Sometimes prolonged excessive exposure to high hormone concentrations causes a phenomenom known as: A) Up regulation B) down regulation
b) down regulation
The neurohypophysis or posterior lobe of the pituitary gland is not a true endocrine gland A) Embriologically is was an endocrine tissue b/c it is actually part of the neural system B) it is the only a hormone storage area that receives hormones from the hypothalamus for release
B) it is only storage and receives hormones from the hypothalamus for release
Steroid hormones exert their action by A) finding an appropriate cell receptor and initiating cAMP activity B) entering the nucleus of the cell and iniating or altering the expression of a gene
B) entering the nucleus of the cell and iniating or altering the expression of a gene
The second messenger mechanism of hormone action operates by A) synthesizing more of the hormone than is actually needed B) binding to specific receptors and employing the services of G proteins and cAmp
B) binding to specific receptors and employing the services of G proteins and cAmp
Thyroid hormone (a small iodinated amine) enters the target cells in a manner similar to A) insulin b/c insulin is a small peptide B) steroid hormones because both diffus easily into the target cell
B) steroid hormones because both diffus easily into the target cell
The major target of growth hormone A) the adrenal gland B) bones and skeletal muscles
B) bones and skeletal muscles
which organ is responsible for synthesizing ANP A) heart B) kidney
A) heart
Mineralcorticoid is to aldesterone and glucocorticoid is to a) cortisol b) epinephrine
A) cortisol
The most important regulator of electrolyte concentrations in extracellular fluids is A) cortisol B) adesterone
B) aldesterone
which of the following does not act as a second messenger in second messenger systems of hormone action A) cyclic AMP b) calmodulin
B) Calmodulin
select the correct statement about hormonal structure and function A) An amino acid derivative can be a hormone B) an example of a local hormone is testosterone
A) An amino acid derivative can be a hormone
in circumstances where the body requires prolonged or increased level of a hormone, the DNA of target cells will specify the synthesis of more receptors on the surface of the cells of target organ. known as A) dn regulation B) up regulation
B) up regulation
which of the following organs is affected by the thyroid hormone A) liver B) spleen
A) liver
thyroxine is a peptide hormone, but its mechanism is different from other peptide hormones. Which of the following statements is true concerning theis difference? A) it does not require a second messenger to effect a response B) it is very specific in the cell type it targets
A) it does not require a second messenger to effect a response
Catecholamines and or peptide hormones bind to receptors on the surface of cells that comprise target organs. This binding causes A) An immediate change in genetic activity B) Adrenylate cyclase to generate cyclic AMP from ATP
B) Adrenylate cyclase to generate cyclic AMP from ATP
Glucocorticoids enable the body to deal with stress. They accomplish this by A) increasing blood glucose, fatty acid, and amino acid level and enhancing blood pressure B)stimulating the pancreas to release insulin
A) increasing blood glucose, fatty acid, and amino acid level and enhancing blood pressure
What ion is sometimes used as a second messenger of amino acid base hormones A) calcium B) sodium
A) calcium