Chapter 10: The Endocrine System and Chapter 11: The Lymphatic System Flashcards
what are the 4 similarities between the endocrine and nervous systems?
-both release chemicals to stimulate organs/cells/tissues
-both respond to stimuli
-both mostly use the feedback mechanism
-both use the same chemicals(ex. E, NE)
how does the endocrine system secrete chemicals vs how does the nervous system secrete chemicals?
endocrine: releases hormones into the bloodstream
nervous: release neurotransmitters into only certain places
what are the lengths of responses for the endocrine and nervous systems?
endocrine: long term responses(changes last for a long period of time)
nervous: quick responses(last for less than 1 second)
what are the 3 ways to release a chemical?
-released by a neuron(neurotransmitter; nervous)
-released to a localized area(local regulator; endocrine)
-long distance regulator(endocrine)
what are the 3 different structures of hormones?
-amino acid derivatives
-peptide derivatives
-lipid derivatives
hormone structures: smallest structures; have the same atoms as amino acids; can be polar or nonpolar
amino acid derivatives
what are 4 examples of amino acid derivatives?
E, NE, T3, and T4
hormone structures: most common groups; has 2 classes, peptide and protein derivatives; can be polar or nonpolar
peptide derivatives
how many amino acids are peptide derivatives made up of?
2-8; only a few
how many amino acids are protein derivatives made up of?
lots; more than peptide derivatives
hormone structures: have 3 classes, steroid, fatty acid, and other
lipid derivatives
are steroid derivatives polar or nonpolar?
nonpolar
what are 3 examples of steroid hormones?
T, E, and P
what are fatty acid derivatives made up of?
eocosinoids
long chains of fatty acids
eocosinoids
what is one example of fatty acid derivatives?
prostaglandin
all are attracted to and dissolve in H2O; H2O cannot cross the cell membrane, therefore, these cannot cross the cell membrane either; there also must be a receptor located on the cell membrane
polar hormone
do not dissolve in H2O/blood so they can easily pass through the cell membrane; receptor must be on the inside of the cell membrane(in cytosol, organelle, or gene on a chromosome)
nonpolar hormone
what are the 3 methods that hormones are released?
-humoral response
-hormonal response
-neural response
methods of releasing hormones: group of hormones that are released because a level of a substance is too low or too high
humoral response
what are 4 examples of hormones released by humoral response?
GCG, INS, CT, and PTH
methods of releasing hormones: group of hormones that are released because another hormone was released
hormonal response
methods of releasing hormones: released as a neurotransmitter but goes into general circulation, making it a hormone
neural response
all of the cells, tissues, and organs used to clean and filter lymph fluid or attack pathogens
lymphatic system