Class Notes (838,385)
Canada (510,871)
York University (35,470)
Biology (2,273)
BIOL 4370 (20)

Sept 5th.docx

2 Pages
Unlock Document

BIOL 4370

Sept 5th • Neuroscience: study of neurons and nervous systems • Neuroscientists must understand biology, chemistry, and physics • Many neurological disorders and “three pound universe” curiosity drive neurologists to study neurology • 100 billion neurons in brain, we use 100% of our brain, and brain is 20W (whole body uses 100W) and 10 micrometers (10^-6) is size of typical neuron • Most common neurotransmitter is glutamate, voltage inside neuron is -65mV, name of nuero-electrical impulse is action potential, and important ions for neuro-electric activity are sodium, potassium, calcium and chloride • Website: diam 10 microns! # 100 billion! RP -65mV! xmit glutamate! ions NaKCaCl! • central nervous system (CNS): | all parts of the nervous system is within bone • Peripheral nervous system (PNS) are not within bone • Neurons are similar to other cells: they are enclosed by membrane and have organelles within them • Neurons differ from other cells by looks; dendrites, and axons and are electrically exciteable • Neurons are a cell that have an axon and fire an action potential • Glial cells are the most common cells in nervous system (3 times as many glial than neurons)
More Less

Related notes for BIOL 4370

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.