M100 Endocrine Review Flashcards
The system of the body whose function is communication and control which is slower than nervous
Endocrine
System of the body which lasts longer than the nervous system
Endocrine
Chemicals secreted into and circulated by the blood
Hormones
Chemicals messengers produced by the endocrine system
Hormones
The two main types of glands
Endocrine& exocrine
These glands secrete their products into ducts that empty onto a surface or into a cavity
Exocrine
Examples of exocrine glands
Sweat, saliva
These are known as ductless glands
Endocrine
Endocrine glands secrete chemicals into intracellular spaces which diffuse into the ___________
Bloodstream
Hormones bind to target organ cells at ______ sites which trigger reactions in a cell
Receptor
_____ AKA neoplasms can cause glands to hypo/hyper secrete hormones
Tumors
Production of too much hormone by a diseased gland is called
Hypersecretion
Production of too little hormone by a diseased gland is called
Hyposecretion
Two major classes of hormones are
Steroidal and nonsteroidal
Hormones fit into receptor sites like a _____ and ______
Lock, key
These are whole proteins, shorter chains of amino acids and versions of single amino acids
Non steroid
Lipid soluble hormones
Steroid
These can pass intact directly through the cell membrane of the target organ cell
Steroid
_______ feedback mechanisms regulate the secretion of most hormones in attempt to bring back homeostasis
Negative
Insulin ______ blood sugar levels
Lowers
Insulin is released from the
Pancreas
Low blood sugar levels cause a ____ in the production and release of insulin
Drop
Negative feedback control mechanisms _____ changes
Reverse
These are uncommon and amplify changes in the body (labor)
Positive feedback loop
These are tissue hormones that play an important role in communication and control many body functions
Prostaglandins
These are produced in tissues and diffuses only a short distance to act on cells within that tissue
Prostaglandins
