| Term 
 
        | whawt is the endocrine system composed of? |  | Definition 
 
        | a group of ductless glands |  | 
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        | what is the difference between exocrine and endocrine |  | Definition 
 
        | exocrine have glands with ducts while endocrine have ductless glands |  | 
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        | what does the endocrine system do? |  | Definition 
 
        | secrete hormones into the blood |  | 
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        | proteins or steroids that are chemically synthesized and secreted by a cell-has a target cell which it regulates-travels in teh blood |  | 
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        | how does a hormone travel? |  | Definition 
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        | a hormone has a target _____ which it regulates |  | Definition 
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        | how are most hormones classified? |  | Definition 
 
        | most are proteins and some are steroids |  | 
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        | hypothalamus secretes what? |  | Definition 
 
        | regulatory hormones that affect the pituitary gland |  | 
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        | what did the pituitary gland used to be called? |  | Definition 
 
        | the master gland now the hypothalamus is the master gland
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        | is a nerve located in the cns or pns? |  | Definition 
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        | a tract is a collection of ____ ___ in the ____ |  | Definition 
 
        | myelinated axons in the cns |  | 
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        | cerebral cortex is what type of matter |  | Definition 
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        | Term 
 
        | what is the hypophyseal tract |  | Definition 
 
        | sometimes called the hypothalamopypophyseal portal system, it is the connection between the pituatary cland and hypothalamus(tract of axons) |  | 
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