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16 Cards in this Set

  • Front
  • Back
What is the function of the endocrine system?
Maintain homeostasis
How are the nervous system and the endocrine system related?
hypothlamus - controls pituitary
Describe negative feedback control
Low levels - more hormone; high levels - less hormone
How does a steroid hormone affect its target cell?
Steroids enter the cell and make proteins.
Why must blood glucose levels be kept fairly constant?
Cells need glucose for energy to match demands
How does the body maintain blood glucose levels?
Glucose high - insulin tells liver to store it. Glucose low - glucogen tells liver to convert glycogen to glucose
secrete hormones
endocrine glands
controls pituitary
main endocrine gland
pituitary gland
cells that can receive hormones
target cells
binding sites for hormones
secrete hormones for stress
adrenal glands
feedback system - low levels cause response; high levels turn off response
negative feedback system
gland - in the neck - regulates metabolism
thyroid gland
produce parathyroid hormone (PTH) - regulates minerals
parathyroid gland
How do amino acid hormones affect cells?
They stick on the membrane, open ion channels or increase enzyme activity.