BIOL 22000 Chapter Notes - Chapter 9: Chemical Synapse, Synostosis, Potassium Channel

180 views13 pages
Lecture 9
Neurotransmitter Release
o
o Since the synaptic bouton do not have sodium potassium channel, so action
potential can only reach up to certain position
o From the red part, a graded potential occurs instead of action potential
o When calcium enters, it allows synostosis and SNAREs to change shape the
vesicle and fuse with the cell
Major Neurotransmitters
o An excitatory neurotransmitter tends to cause graded depolarization, which is like
to lead to action potential
o An inhibitory neurotransmitter tends to cause graded hyperpolarization, which is
like to prevent action potential
find more resources at oneclass.com
find more resources at oneclass.com
Unlock document

This preview shows pages 1-3 of the document.
Unlock all 13 pages and 3 million more documents.

Already have an account? Log in
Termination of Synaptic Transmission
o
o The first way can be passive or uses ATP
o Here is an example of degradation
o
find more resources at oneclass.com
find more resources at oneclass.com
Unlock document

This preview shows pages 1-3 of the document.
Unlock all 13 pages and 3 million more documents.

Already have an account? Log in
Endocrine Signaling
o
o Basic of Endocrine Signaling
A hormone is a chemical that is secreted into the blood by a cell or group
of cells for transport to a distance target, where is exerts its effects at very
low concentration
Many hormones are first messenger
Signal can be amplified by second messenger
Specific responses to hormones are determined by the presence of specific
receptors
The methods of synthesis and secretion of hormone, its speed of action,
how long its effects last and other properties are determined by the class of
chemical signal it belongs to
Peptides short proteins, like three amino acids
Steroids derivative of cholesterol
Amines derivative of thyroxin
find more resources at oneclass.com
find more resources at oneclass.com
Unlock document

This preview shows pages 1-3 of the document.
Unlock all 13 pages and 3 million more documents.

Already have an account? Log in

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents

Related Questions