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18 Cards in this Set

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What chemical agents are responsible for increasing muscle mass of males?
testosterone, attaches to receptors on specific target cells
what is the marketed name of the chemical agent responsible for milk letdown?
pitocin
What local hormone promotes what happens just after chromatin undergoes coiling into rodlike structures?
(mitosis and rodlike structures are chromosomes) growth factors! because they promote cell division and mitosis
What chemical signal would promote symptoms of redness, heat, swelling, and pain? What cells would this effect?
(inflammatory response)Prostaglandins a local hormone, affect neighboring cells, sometimes promoting pain and inflammation
What would an action of a chemical agent do to increase its uptake of calcium?
target cells.
What type of mechanism does both the endocrine and nervous system make use of?
negative feed back
What lipid structure is formed by interstitial cells located in the testes? What promotes this formation?
Leutinizing hormone, steroids
what would be a good example of a hormone that doesn't act between body parts?
prostaglandins (local hormone), growth factors
what chemical messenger acts between body parts and influences cell metabolism leading to a change in the structure of bone?
Growth hormone
What condition may cause body cells that lack receptors that are able to combine with the substance produced by interstitial cells in the testes?
Androgen insensitivity
What type of hormone is the growth hormone? What does it influence?
a peptide, influences cell metabolism leading to a change in the structure of bone.
What types of hormones influence cell metabolism?
growth hormone and steroid hormones
What type of structure would the substance released by newly formed follicles have? Why?
(estrogen) four carbon rings, because it is derived from carbohydrates
What is the first messenger in the action of peptide hormones?
The hormone, seconda messenger is CAMP
why are steroid hormones able to enter the cell?
Because they are lipids (they pass through the lipid soluble membrane)
How do anabolic steroids promote muscle growth/protein growth?
By directly activating DNA
What action of hormone will be slower acting? Why?
Steroid hormones, because they have to synthesize protein. Peptide hormones just activate enzymes already present in cells.
What neurons are sensitive to the water-salt balance of the blood?
neuosecretory cells and Antidiuretic hormone