e system Ans- utilizes hormones typically released directly into the bloodstream to
coordinate the various activities of body parts
hormone Ans- an organic chemical produced by one set of cells that affects a different set of cells
two types of hormones Ans- peptide and steroid
peptide hormone...
Portage A & P 1: Module 6 (Endocrine
System)
function of endocrine system Ans- utilizes hormones typically released directly into the bloodstream to
coordinate the various activities of body parts
hormone Ans- an organic chemical produced by one set of cells that affects a different set of cells
two types of hormones Ans- peptide and steroid
peptide hormone Ans- activate existing enzymes in the cell//act relatively quickly but for a short period
of time
steroid hormone Ans- synthesize new proteins//act more slowly than peptide hormones but usually
have a longer lasting effect on the cell
site of steroid hormone production Ans- adrenal cortex, ovaries and testes
example of steroid hormone Ans- estrogen and testosterone
catecholamines Ans- derived from amino acid tyrosine//production requires only a series of metabolic
reactions within the cytoplasm
site of peptide synthesis Ans- ribosomes
negative feedback Ans- increased level of the hormone acts to shut down the continued release of the
hormone//monitored by brain
hypothalamus Ans- portion of the brain that regulates the internal environment; it helps to control heart
rate, body temperature, H20 balance & the glandular secretions of the pituitary gland
, posterior pituitary gland Ans- stores hormones made by the hypothalmus
anterior pituitary gland Ans- sometimes called the master gland because it controls the secretion of
some other endocrine glands by secreting certain hormones
ADH Ans- • [pituatary]
• antidiuretic hormone
• target: kidney
• increases H2O conservation
ACTH Ans- • [pituatary]
• adrenocorticotrophic hormone
• target: adrenals
• cortisol secretion
TSH Ans- • [pituatary]
• thyroid stimulating hormone
• target: thyroid
• thyroid hormone release
GH Ans- • [pituatary]
• growth hormone
• target: bone, soft tissue
• growth
FSH Ans- • [pituatary]
• Follicle stimulating hormone
• target: Ovary, testes
• follicular growth, estrogen production, sperm production
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